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Natércia Teixeira (NT) has finished her Chemistry PhD degree in December 2015. Her scientific research started with the study of the irrigation effect in the polyphenolic composition of grapes and the effect of different winemaking techniques in the polyphenolic composition of wines. NT¿s first research grant was focused on anthocyanin isolation from wine by-products, and its use for the study of pyranoanthocyanins¿ chemical synthesis and physical-chemical properties. During her PhD, that included an internship at the Groupe Synthèse-Molécules Bioactives at Bordeaux University I, France, NT studied the synthesis of prodelphinidins, the tannin composition of Portuguese red vinho verde wines and the noncovalent copigmentation phenomena between oenin (an anthocyanin) and different polyphenol copigments. NT won a CEEC-Junior Researcher contract in 2019, in Agricultural sciences (CEECIND/00025/2018/CP1545/CT0009): Polyphenolic research: by-product exploration, interaction with metals and its application in environmental and technological fields. Her curricular path includes 34 scientific papers, 2 book chapters, 48 participations in science conferences (19 oral and 37 poster presentations), and 15 supervisions (BSc, MSc and Extracurricular Internship Program). NT has been part of 6 SR&TD projects: Polyphenols in Art: chemistry and biology hand in hand with conservation of cultural heritage (PTDC/QUI-OUT/29925/2017), where she was the Co-PI and was involved in the study of polyphenolic extracts of gallnuts, reconstruction of historical manuscript recipes and characterization of the molecular structures of iron-polyphenol complexes present in iron gall inks. REVIVE: The threads of the past weaving the future: The colors from the Royal Textile Factory of Covilhã, 1764-1850 (2022.01243.PTDC), where she is responsible for HPLC-DAD/MS analysis of dyeing formulations and textile samples from the archives and/or historical reconstructions of the Royal Textile Factory dyeing recipes. VINOFLAVO ¿ Red wine flavonoids: Bioavailability and biological properties (PTDC/AGR-TEC/2227/2012), where she worked on the isolation of several flavonoids. VINE&WINE RESIDUES: Unlimited sources of polyphenolic compounds for application in Functional Foods (PTDC/AGR-TEC/2789/2014), where she is involved in the identification and isolation of polyphenolic compounds from wine industry by-products. FoodNanoSense: Bio­sensing research on food astringency and bitterness of natural phenolics (PTDC/AGR-TEC/6547/2014), where she was involved in the isolation and synthesis of tannins. WINPUT: Wine-inspired synthesis of blue pyranoflavyliums for topical Photodynamic Therapy (PTDC/QUI-OUT/29013/2017), where she was involved in the isolation of anthocyanins and derivatives. Since her PhD, NT has been focused: on the valorization of agro-food by-products/wastes by extract optimization and characterization of several polyphenolic families; the conduction and dissemination of the SR&TD project where she was the responsible Co-PI; deepen her knowledge regarding cultural heritage subjects; and the establishment of new collaborations and experimental protocols regarding the interaction between polyphenols and metals. Until 2018, her expertise subject were proanthocyanidins (non-hydrolysable tannins) and anthocyanins. However, since the R&D project ¿Polyphenols in Art¿, she has been working with gallotannins (hydrolysable tannins). The project main goal was to study the molecular interaction between gallotannins and Fe, its kinetic and oxidation mechanisms and its effects on the ink color and conservation of ancient manuscripts. This project also engaged NT in cultural heritage areas of research. In 2022 she accomplished a 2-month internee at Nova School of Science and Technology in Almada, Portugal, working with chemists, conservation and preservation expert researchers. Member of the Chemistry and Biochemistry Department Researchers' Committee, elected by fellow colleagues
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Identification

Personal identification

Full name
Natércia do Carmo Valente Teixeira

Citation names

  • Teixeira, Natércia

Author identifiers

Ciência ID
7817-FFBE-1D8E
ORCID iD
0000-0003-2308-8634

Email addresses

  • natercia.teixeira@fc.up.pt (Professional)

Websites

Knowledge fields

  • Exact Sciences - Chemical Sciences

Languages

Language Speaking Reading Writing Listening Peer-review
Portuguese (Mother tongue)
English Advanced (C1) Proficiency (C2) Advanced (C1) Advanced (C1) Advanced (C1)
French Beginner (A1) Intermediate (B1) Elementary (A2) Intermediate (B1) Elementary (A2)
Spanish; Castilian Upper intermediate (B2) Advanced (C1) Intermediate (B1) Advanced (C1) Upper intermediate (B2)
Education
Degree Classification
2024/04/08 - 2024/04/11
Concluded
 Training School on Natural Dyeing (Outros)
Saber Fazer, Portugal
2023/04/22 - 2023/04/23
Concluded
 Learning to work with Wool, from Sheep to Yarn (Outros)
Saber Fazer, Portugal
2022/07/21 - 2022/07/22
Concluded
 Pedagogical Training Course “Good Practices in Doctoral Guidance” (Outros)
Universidade do Porto Faculdade de Ciências, Portugal
2011/04/01 - 2015/12/11
Concluded
 Chemistry (Doutoramento)
Universidade do Porto Faculdade de Ciências, Portugal
"Study of Prodelphinidins: synthesis, detection, identification and reactivity with anthocyanins " (THESIS/DISSERTATION)
 Approved with unanimity
2008/09 - 2009/07
Concluded
 Specialization in Forensic Sciences (Pós-Graduação)
Universidade do Porto Instituto de Ciências Biomédicas Abel Salazar, Portugal
 16
2007/10 - 2008/12
Concluded
 Chemistry (Mestrado)
Universidade do Porto Faculdade de Ciências, Portugal
"Estudo do efeito de diferentes técnicas de vinificação na composição polifenólica dos vinhos." (THESIS/DISSERTATION)
 16
2002/09 - 2007/10
Concluded
 Chemistry (Licenciatura)
Major in Chemistry
Universidade do Porto Faculdade de Ciências, Portugal
"Caracterização da composição polifenólica das uvas da Região Demarcada do Douro: Efeito da Rega." (THESIS/DISSERTATION)
 14
Affiliation

Science

Category
Host institution 		Employer
2019/04/01 - Current Contracted Researcher (Research) REQUIMTE LAQV Porto, Portugal
Universidade do Porto Faculdade de Ciências, Portugal
2016/01/01 - 2019/03/31 Researcher (Research) REQUIMTE LAQV Porto, Portugal
Universidade do Porto Faculdade de Ciências, Portugal

Teaching in Higher Education

Category
Host institution 		Employer
2024/02/01 - 2024/07/31 Invited Assistant Professor (University Teacher) Universidade do Porto Faculdade de Ciências, Portugal
Universidade do Porto Faculdade de Ciências, Portugal
2023/02/01 - 2023/07/31 Invited Assistant (University Teacher) Universidade do Porto Faculdade de Ciências, Portugal
Universidade do Porto Faculdade de Ciências, Portugal
2022/02/01 - 2022/07/31 Invited Assistant (University Teacher) Universidade do Porto Faculdade de Ciências, Portugal
Universidade do Porto Faculdade de Ciências, Portugal
2021/02/01 - 2021/07/31 Invited Assistant (University Teacher) Universidade do Porto Faculdade de Ciências, Portugal
Universidade do Porto Faculdade de Ciências, Portugal

Others

Category
Host institution 		Employer
2011/04/01 - 2015/12/11 PhD Fellow REQUIMTE LAQV Porto, Portugal
2008/04/01 - 2010/12/31 Bsc grant Fundação para a Ciência e a Tecnologia, Portugal
Projects

Grant

Designation Funders
2011/04 - 2015/03 Study of Prodelphinidins: synthesis, detection, identification and reactivity with anthocyanins
SRFH/BD/70053/2010
PhD Student Fellow
Portuguese National Funding Agency for Science, Research and Technology

Contract

Designation Funders
2024 - Current Primary sector waste and by-product valorization powered by cultural heritage.
2023.06024.CEECIND
Principal investigator
REQUIMTE LAQV Porto, Portugal
 Fundação para a Ciência e a Tecnologia
2020/08/01 - Current POPMETAL - Polyphenolic research: by-product exploration, interaction with metals and its application in environmental and technological fields.
CEECIND/00025/2018/CP1545/CT0009
Principal investigator
REQUIMTE LAQV Porto, Portugal
 Fundação para a Ciência e a Tecnologia
Ongoing
2021/01/01 - 2025/12/31 Laboratório Associado para a Química Verde - Tecnologias e Processos Limpos
LA/P/0008/2020
10.54499/LA/P/0008/2020
Rede de Química e Tecnologia Laboratório Associado para a Química Verde, Portugal

Universidade de Aveiro, Portugal

Associação para a Inovação e Desenvolvimento da FCT, Portugal

Universidade de Évora, Portugal

Unidade de Investigação Vidro e Cerâmica para as Artes, Portugal

Universidade de Lisboa Instituto Dom Luiz, Portugal

Universidade NOVA de Lisboa, Portugal
Fundação para a Ciência e a Tecnologia
Ongoing
2019/01/01 - 2019/12/31 Associated Laboratory for Green Chemistry - Clean Technologies and Processes
UID/QUI/50006/2019
Universidade do Porto Faculdade de Ciências, Portugal

Rede de Química e Tecnologia Laboratório Associado para a Química Verde, Portugal

Universidade do Porto Instituto de Ciências Tecnologias e Agroambiente, Portugal

Associação para a Inovação e Desenvolvimento da FCT, Portugal
Fundação para a Ciência e a Tecnologia
Concluded
2019/01/01 - 2019/12/31 Laboratório Associado para a Química Verde - Tecnologias e Processos Limpos (UID/QUI/50006/2019)
UID/QUI/50006/2019
Universidade do Porto Faculdade de Ciências, Portugal

Rede de Química e Tecnologia Laboratório Associado para a Química Verde, Portugal

Universidade do Porto Instituto de Ciências Tecnologias e Agroambiente, Portugal

Universidade Nova de Lisboa Associação para a Inovação e Desenvolvimento da FCT, Portugal
Fundação para a Ciência e a Tecnologia
Concluded
2016/01 - 2018/12 FoodNanoSense: Bio-sensing research on food astringency and bitterness of natural phenolics
grant.Provided by PTCRIS: 145189
 Fundação para a Ciência e a Tecnologia
2015/11 - 2018/10 VINE&WINE RESIDUES: Unlimited resources of high-value polyphenols for application into Functional Foods.
grant.Provided by PTCRIS: 141415
Post-doc
Fundação para a Ciência e a Tecnologia
Concluded
2013/03 - 2015/09 VINOFLAVO - Red wine flavonoids: bioavailability and biological properties.
grant.Provided by PTCRIS: 127891
Other
REQUIMTE LAQV Porto, Portugal
 Fundação para a Ciência e a Tecnologia
Concluded
2011/01/01 - 2012/12/31 Strategic Project - UI 81 - 2011-2012
PEst-C/QUI/UI0081/2011
Universidade do Porto Faculdade de Ciências, Portugal

Universidade do Porto Centro de Investigação em Química, Portugal
Fundação para a Ciência e a Tecnologia
Concluded

Other

Designation Funders
2023/03/06 - 2026/03/05 Revive - The threads of the past weaving the future: The colors from the Royal Textile Factory of Covilhã, 1764-1850
2022.01243.PTDC
Researcher
REQUIMTE LAQV Porto, Portugal
Ongoing
2020/10/13 - 2024/10/12 COST Action EuroWeb, CA19131
EuroWeb, CA19131
Researcher
Ongoing
2018/07/01 - 2022/06/30 Polyphenols in Art: chemistry and biology hand in hand with conservation of cultural heritage
PTDC/QUI-OUT/29925/2017
Co-Principal Investigator (Co-PI)
Universidade do Porto Instituto de Ciências e Tecnologias Agrárias e Agro-Alimentares, Portugal
 Fundação para a Ciência e a Tecnologia
Concluded
2018/06/01 - 2021/09/30 WINPUT: Wine-inspired synthesis of blue pyranoflavyliums for topical Photodynamic Therapy
PTDC/QUI-OUT/29013/2017
Post-doc
REQUIMTE LAQV Porto, Portugal
 Fundação para a Ciência e a Tecnologia
Concluded
Outputs

Publications

Book chapter
  1. Teixeira, Natércia; Maria João Melo; Pina, Fernando; Claude Andary. "Anthocyanins: Revisiting Nature's Glamorous Palette". In Handbook of Natural Colorants, edited by Thomas Bechtold; Avinash P. Manian; Tung Pham, 251-270. John Wiley & Sons, 2023.
    Published • 10.1002/9781119811749.ch12
  2. Fernandes, Ana; Oliveira, Hélder; Teixeira, Natércia; Mateus, Nuno; de Freitas, Victor. "Extraction efficiency of phenolic compounds by bioconversion and their implication on their biological effects". In Technologies to Recover Polyphenols from AgroFood By-products and Wastes, 271-300. Elsevier, 2022.
    Published • 10.1016/b978-0-323-85273-9.00003-x
  3. Fernandes, Ana; Teixeira, Natércia; Oliveira, Hélder; Mateus, Nuno; De Freitas, Victor Armando Pereira. "Bioconversion effect on polyphenols extraction efficiency and biological effects". In Technologies to Recover Polyphenols from AgroFood By-products and Wastes. Elsevier, 2022.
    Published
Conference abstract
  1. Alves, Tiago Filipe P.; Teixeira, Natércia; Souza, Hiléia K. S.; Fernandes, Iva; Victor de Freitas; Amaral, Maria Helena. "Elaboration of naturally sweet catechin formulations for cognitive development enhancement.". Paper presented in XXVII Encontro Luso Galego de Química, Porto, 2023.
    Published
  2. Teixeira, Natércia; Nabais, Paula; Jane Malcolm-Davies; Beatrice Behlen. "Dyestuff identification in 16th-century waistcoats: a multi-analytical approach.". Paper presented in 42nd Dyes in History & Archaeology conference, Copenhagen, 2023.
    Published
  3. Sotoudeh, Malihe; Teixeira, Natércia; Otero, Vanessa; Nabais, Paula; Melo, Maria João. "Empowering Raman spectroscopy with Chemometrics for better molecular identification of iron gall inks in written cultural heritage.". Paper presented in RAA2023 - 11th International Conference on the Application of Raman Spectroscopy in Art and Archaeology, Athens, 2023.
    Published
  4. Alves, Tiago Filipe P.; Teixeira, Natércia; Souza, Hiléia K. S.; Fernandes, Iva; Victor de Freitas; Amaral, Maria Helena. "Development of new stable catechin formulations for cognitive development enhancement.". Paper presented in Investigação Jovem da Universidade do Porto, Porto, 2023.
    Published
  5. Teixeira, Natércia; Díaz Hidalgo, Rafael Javier; Nabais, Paula; Maria João Melo; Ricardo Córdoba; Sotoudeh, Malihe. "In the darkness of the lamp. Elaboration of carbon and mixed inks from the light of a source of al-Andalus.". Paper presented in XIV edition of the International Congress on the History of Paper in the Iberian Peninsula, Toledo, 2023.
    Published
  6. Teixeira, Natércia; Cruz, Hugo; André Neto e Silva; Luís Cunha-Silva; Nabais, Paula; Pina, Fernando; Victor de Freitas; Maria João Melo. "Medieval writing: the chemistry behind iron gall inks". Paper presented in Technart 2023, Lisbon, 2023.
    Accepted
  7. FB10-F205-62C7; D210-B2D8-193A ; Teixeira, Natércia; Manso, Marta; Sequeira, Joana; Pinheiro, Elisa. "The threads of the past weaving the future: The colors from the Royal Textile Factory of Covilhã, 1764-1850". Paper presented in VI CHAM International Conference - Heritage for a common future, futures for a common heritage, Lisboa, 2023.
  8. Teixeira, Natércia; André Neto e Silva; Luís Cunha-Silva; Nabais, Paula; Rangel, Maria; Fernando Pina; Victor de Freitas; Maria João Melo. Corresponding author: Teixeira, Natércia. "To be or not to be an iron gall ink: a multi-analytical methodology for the study of iron-polyphenol complexes". Paper presented in Dyes in History and Arqueology 41, Visby, 2022.
    Published
  9. Teixeira, Natércia; André Neto e Silva; Luís Cunha-Silva; Nabais, Paula; Rangel, Maria; Fernando Pina; Victor de Freitas; Maria João Melo. "Unveiling the iron-polyphenol complexes behind medieval iron gall inks through a muti-analytical methodology.". Paper presented in 8th EuChemS Chemistry Congress, Lisbon, 2022.
    Published
  10. Teixeira, Natércia; Fernando Pina; Nabais, Paula; Sotoudeh, Malihe; Victor de Freitas; Maria João Melo. Corresponding author: Teixeira, Natércia. "Unveiling the color and stability of the black complexes behind iron gall inks". Paper presented in Gordon Research Conference on Scientific Methods in Cultural Heritage Research, Les Diablerets, 2022.
    Published
  11. Teixeira, Natércia; Tiago Filipe P. Alves; Jorge Vieira; António A. Vicente; Victor de Freitas; Hiléia K. S. Souza. "Polyphenol Extraction by deep eutectic solvent for valorisation of Portuguese Green tea and their impact on Chitosan-based films properties". Paper presented in XXVII Encontro Nacional da Sociedade Portuguesa de Química, Braga, 2021.
    Published
  12. Teixeira, Natércia; Tiago Filipe P. Alves; Victor de Freitas; Hiléia K. S. Souza. "Green tea extract and green ionic liquids used as functional additives for chitosan films". Paper presented in Encontro de Investigação Jovem - 14ª edição, Porto, 2021.
    Published
  13. Natércia Teixeira; Sara Alves; José Santos; Olga M. Lage; Victor de Freitas. "New food colorants: a study of their stability and properties". Paper presented in Encontro de Investigação Jovem - 14ª edição, Porto, 2021.
    Published
  14. Teixeira, Natércia; Vanessa Otero; Nabais, Paula; Rafael Javier Díaz; Hermine Grigoryan; Melo, Maria João. "Uncovering al-Qalalusi 13th-century treatise on ink making: New contributions to the study of medieval iron gall inks". Paper presented in Dyes in History and Archaeology 39, Sibiu, 2020.
    Published
  15. Teixeira, Natércia; Nabais, Paula; Maria João Melo; Fernando Pina; Victor de Freitas; Nuno Mateus; Alexandra Silva; et al. "Disclosing medieval Iberian iron-gall inks recipes through the use of historically accurate reconstructions". Paper presented in Dyes in History and Arqueology 38, Amsterdam, 2019.
    Published
  16. Teixeira, Natércia. "Study of five iberian medieval iron-gall inks obtained through the use of historically accurate reconstructions". Paper presented in XXVI Encontro Nacional Sociedade Portuguesa de Química, Porto, 2019.
    Published
  17. Teixeira, Natércia; Sérgio Alves; Victor de Freitas; Carlos Baleizão; José Paulo S. Farinha. "New optical sensors for boron detection". Paper presented in XXVI Encontro Nacional Sociedade Portuguesa de Química, Porto, 2019.
    Published
  18. Teixeira, Natércia; Nabais, P.; Melo, M.J.; Mateus, N.; de Freitas, V.; Mateus, Nuno; de Freitas, Victor. "Enlightening the phenolics compounds present in iron-gall inks obtained through the use of historically accurate reconstructions". Paper presented in XXIV Encontro Luso-Galego de Química, Porto, 2018.
    Published
  19. Teixeira, Natércia; Nabais, Paula; Mateus, Nuno; Melo, Maria João; de Freitas, Victor. "Enlightening the phenolics compounds present in iron-gall inks obtained through the use of historically accurate reconstructions". Paper presented in Dyes in history and Archaeology 37, Caparica, 2018.
    Published
  20. Teixeira, Natércia; Melo, M.J.; Nabais, P.; Pina, F.; de Freitas, V.. "The dark-side of polyphenols in medieval manuscripts: a study on iron gall inks". Paper presented in Dyes in History and Archaeology 36, London, 2017.
    Published
  21. Teixeira, Natércia; Mateus, N.; de Freitas, V.; Oliveira, J.. "Grape stalks: an added value polyphenolic source?". Paper presented in Xth Symposium In Vino Analytica Scientia, Salamanca, 2017.
    Published
  22. Teixeira, Natércia; Salas, E.; Oliveira, J.; Maia, S.; Mateus, N.; de Freitas, V.. "Mass spectrometry analysis (MALDI-TOF and Orbitrap ESI-MS) of anthocyanins (monomeric and oligomeric) from red wine grape pomace". Paper presented in Xth Symposium In Vino Analytica Scientia, Salamanca, 2017.
    Published
  23. Teixeira, Natércia; Mateus, Nuno; de Freitas, Victor; Oliveira, Joana. "The polyphenolic composition of grape stems – Identification, quantification and applicability". Paper presented in XIII Encontro de Química dos Alimentos, Porto, 2016.
    Published
  24. Teixeira, Natércia; Salas, E.; Maia, S.; Oliveira, J.; Mateus, N.; de Freitas, V.. "Analysis of grape seed tannins by mass spectrometry (MALDI-TOF and ORBITRAP ESI-MS)". Paper presented in In Vino Analytica Scientia, Trento, 2015.
    Published
  25. Teixeira, Natércia; Mateus, N.; de Freitas, V.. "Synthesis of prodelphinidins". Paper presented in 4th Portuguese young chemists meeting, Coimbra, 2014.
    Published
  26. Teixeira, Natércia; Cruz, L.; Brás, N.F.; Ramos, M.J.; Mateus, N.; de Freitas, V.. "Structural features of copigmentation of oenin with different polyphenol copigments". Paper presented in 7th International Workshop on Anthocyanins, Porto, 2013.
    Published
  27. Teixeira, Natércia; Mateus, N.; de Freitas, V.. "Synthesis of Prodelphinidins - work in progress". Paper presented in 10º Encontro Nacional de Química Orgânica, Lisbon, 2013.
    Published
  28. Teixeira, Natércia; Oliveira, J.; Petrov, V.; Parola, A.J.; Pina, F.; Azevedo, J.; Brás, N.F.; et al. "Chemical behavior of methylpyranomalvidin-3-O-glucoside in aqueous solution studied by NMR and UV-Visible spectroscopy". Paper presented in Rede Nacional RMN - Jornadas da rede – Bruker: users meeting, Lisbon, 2012.
    Published
  29. Teixeira, Natércia; Nave, F.; Petrov, V.; Pina, F.; Mateus, N.; de Freitas, V.. "Uncharted Waters: Thermodynamic Properties of Catechin-(4,8)-malvidin-3-O-glucoside". Paper presented in 6th International Workshop on Anthocyanins, Charlotte, 2011.
    Published
  30. Teixeira, Natércia; Cruz, L.; Petrov, V.; Mateus, N.; Pina, F.; de Freitas, V.. "Contribution of different types of pyranoanthocyanins to red wine color". Paper presented in In Vino Analytica Scientia, Graz, 2011.
    Published
  31. Cruz, Luís; Petrov, Vesselin; Teixeira, Natércia; Mateus, Nuno; Pina, Fernando; de Freitas, Victor. "Contribution of different types of pyranoanthocyanins to red wine color". Paper presented in XII Encontro Nacional Sociedade Portuguesa de Química, Braga, 2011.
    Published
  32. Cruz, Luís; Petrov, Vesselin; Teixeira, Natércia; Mateus, Nuno; Pina, Fernando; de Freitas, Victor. "Contribution of different types of pyranoanthocyanins to red wine color". Paper presented in 9th International Symposium of Oenology, Bordeaux, 2011.
    Published
  33. Teixeira, Natércia; Santos, M. da C.; Rodrigues, A.; Rodrigues, C.; de Freitas, V.; Saraiva, J.A.; Nunes, C.; Coimbra, M.A.. "Effect of high hydrostatic pressure on antioxidant activity, colour, and anthocyanin content of red wine". Paper presented in Wine Active Compounds, International Conference, Beaune, 2011.
    Published
  34. Teixeira, Natércia; Cruz, L.; Borges, J.; Mateus, N.; de Freitas, V.. "Synthesis of pyranoanthocyanins-catechin pigments". Paper presented in 5th International Workshop on Anthocyanins, Nagoya, 2009.
    Published
  35. Teixeira, Natércia; Faria, Ana; Pestana, Diogo; Azevedo, Isabel; de Freitas, V.; Azevedo, J.; Calhau, Conceição; Azevedo, Joana; Mateus, Nuno. "Anthocyanin transport across a blood-brain barrier model". Paper presented in 5th International Workshop on Anthocyanins, Nagoya, 2009.
    Published
  36. Teixeira, Natércia; Cruz, L.; Silva, A.M.S.; Borges, J.; Mateus, N.; de Freitas, V.. "Formation of new compounds from the reaction between malvidin-3-glucoside and 8-vinylcatechin". Paper presented in In Vino Analytica Scientia, Angers, 2009.
    Published
  37. Teixeira, Natércia; Oliveira, J.; Cruz, L.; Mateus, N.; de Freitas, V.. "Different chemical pathways leading to the formation of portisins in red wines". Paper presented in In Vino Analytica Scientia, Angers, 2009.
    Published
  38. Teixeira, Natércia; Nave, F.; Mateus, N.; de Freitas, V.. "Flavanol-anthocyanin dimers: a new hemisynthetic approach". Paper presented in In Vino Analytica Scientia, Angers, 2009.
    Published
  39. Teixeira, Natércia; Cruz, L.; Borges, J.; Mateus, N.; de Freitas, V.; Cruz, Luís; Mateus, Nuno; Borges, Enrique. "Two diastereoisomers of vinylcatechin dimers obtained from na unusual acid catalyzed dimerization". Paper presented in 8º Encontro Nacional de Química Orgânica, Aveiro, 2009.
    Published
  40. Teixeira, Natércia; Cruz, L.; Silva, A.M.S.; Borges, J.; Mateus, N.; De Freitas, V.. "The role of vinylcatechin in the formation of new pigments during the aging of red wine". Paper presented in Química dos Alimentos, Angra do Heroismo, 2009.
    Published
Conference paper
  1. Teixeira, Natércia; Nabais, Paula; Santo, Mara; Victor de Freitas. "Back from the past: Polyphenols as eco-innovative mordanting solutions for the textile dyeing industry". Paper presented in XXXI International Conference on Polyphenols, Nantes, 2023.
    Accepted
  2. Rafael Javier Díaz Hidalgo; Sotoudeh, Malihe; Nabais, Paula; Maria João Melo; Ricardo Córdoba; Teixeira, Natércia. "¿En la Oscuridad de la lámpara. La elaboración de tintas de carbono y mistas a la luz de una fuente de al-Ándalus, que nos revelan sus evidencias experimentales". Paper presented in Actas XIV Congreso Internacional de Historia del Papel en la Península Ibérica, Toledo, 2023.
    Published
  3. Teixeira, Natércia; Nabais, Paula; André Neto e Silva; Nuno Mateus; Fernando Pina; Maria Rangel; Maria João Melo; Victor de Freitas. "Unveiling the iron-tannin complexes behind medieval iron gall inks". Paper presented in XXX International Conference on Polyphenols, Turku, 2021.
    Published
  4. Teixeira, Natércia; Tiago Filipe P. Alves; Jorge Vieira; António A. Vicente; Victor de Freitas; Hiléia K. S. Souza. "Impact of green tea extraction in ternary deep eutectic solvent on chitosan-based films properties for food applications". Paper presented in XXX International Conference on Polyphenols, Turku, 2021.
    Published
  5. Ana Luís; Nabais, Paula; Rita Araújo; Márcia Vieira; Maria João Melo; Rafael Javier Díaz; Ricardo Córdoba; Teixeira, Natércia; Lourdes Martín. "The art of making medieval writing inks in Al-Andalus: What the written sources tell us and what brings us the experimental evidence". Paper presented in XII Congresso Internacional Historia del papel en la Península Ibérica, Málaga, 2019.
    Published
  6. Melo, M.J.; Nabais, P.; Teixeira, Natércia; Pina, Fernando; de Freitas, Victor. "Advances on iron gall inks: revealing the complex polyphenol systems used to write the medieval book". Paper presented in XXIXth Internation Conference on Polyphenols, Madison, 2018.
    Published
  7. Teixeira, Natércia; Fernandes, I.; Coimbra, J.; Brás, N.F.; Mateus, Nuno; de Freitas, Victor; Oliveira, J.. "The influence of the self-association effect on the anthocyanin copigmentation mechanism". Paper presented in XXVIIIth International Conference on Polyphenols, Vienna, 2016.
    Published
  8. Oliveira, Joana; Maia, Sílvia; Alhinho, Mara; Teixeira, Natércia; Mateus, Nuno; de Freitas, Victor; Salas, Erika. "Characterization of pigments from red wine grape pomace by mass spectrometry". Paper presented in XXVIIth International Conference on Polyphenols & 8th Tannin Conference, Nagoya, 2014.
    Published
  9. Teixeira, Natércia; Mateus, Nuno; de Freitas, Victor. "Co-pigmentation studies involving Prodelphinidins and Anthocyanins". Paper presented in XXVIth International Conference on Polyphenols, Florence, 2012.
    Published
  10. Oliveira, Joana; Azevedo, Joana; Silva, Artur M.S.; Teixeira, Natércia; Cruz, Luís; Mateus, Nuno; de Freitas, Victor. "A new family of anthocyanin-derived pigments presenting a turquoise blue colour found in Port wine". Paper presented in XXVth Internation Conference on Polyphenols, Montpellier, 2010.
    Published
  11. Cruz, Luís; Brás, N.F.; Teixeira, Natércia; Ramos, M.J.; Dangles, O.; Mateus, N.; de Freitas, Victor. "Vinylcatechin dimers have much greater affinity for anthocyanins oenin and malvin than dimeric procyanidin B3". Paper presented in XXVth Internation Conference on Polyphenols, Montpellier, 2010.
    Published
  12. Teixeira, Natércia; Azevedo, Joana; Cruz, L.; Oliveira, Joana; Mateus, Nuno; de Freitas, Victor. "Antioxidant properties of red wine anthocyanin-derived pigments". Paper presented in XXVth Internation Conference on Polyphenols, Montpellier, 2010.
    Published
  13. Nave, Frederico; Teixeira, Natércia; Mateus, Nuno; Dangles, O.; de Freitas, Victor. "Flavanolic substitution of anthocyanins: effects on copigmentation". Paper presented in XXVth Internation Conference on Polyphenols, Montpellier, 2010.
    Published
  14. Cruz, Luís; Teixeira, Natércia; Brás, N.F.; Mateus, Nuno; Ramos, M.J.; de Freitas, Victor; Dangles, O.. "8-vinylcatechin dimerization lead to the formation of two diasteroisomers of vinylcatechin dimers". Paper presented in XXVth Internation Conference on Polyphenols, Montpellier, 2010.
    Published
  15. Teixeira, Natércia; Cruz, Luís; Mateus, Nuno; de Freitas, Victor. "Synthesis of new pyranoanthocyanins through reactions between 8-vinylcatechin and different anthocyanins". Paper presented in XXIVth International Conference on Polyphenols, Salamanca, 2008.
    Published
  16. Cruz, Luís; Teixeira, Natércia; Silva, A.M.S.; Mateus, Nuno; Rodríguez-Borges, J.; de Freitas, Victor. "Synthesis, structural characterization and chromatic features of two pyranoanthocyanin-(+)-catechin pigments". Paper presented in XXIVth International Conference on Polyphenols, Salamanca, 2008.
    Published
Conference poster
  1. Sotoudeh, Malihe; Teixeira, Natércia; Otero, Vanessa; Nabais, Paula; Melo, Maria João. "Empowering Raman spectroscopy with Chemometrics for better molecular identification of iron gall inks in written cultural heritage.". Paper presented in RAA2023 - 11th International Conference on the Application of Raman Spectroscopy in Art and Archaeology, 2023.
  2. Rafael Javier Díaz Hidalgo; Vieira, Márcia; Nabais, Paula; Maria João Melo; Teixeira, Natércia. "The making of black inks in the Arabic treatise by al-Qalalusi dated from the 13th c. Towards an Iberian writing ink workshop". Paper presented in 2nd International Conference on Drugs&Colors in History: From the Past to the Present, 2023.
  3. Teixeira, Natércia; André Neto e Silva; Luís Cunha-Silva; Nabais, Paula; Rangel, Maria; Fernando Pina; Victor de Freitas; Maria João Melo. Corresponding author: Teixeira, Natércia. "To be or not to be an iron gall ink: a multi-analytical methodology for the study of iron-polyphenol complexes". Paper presented in Dyes in History and Arqueology 41, 2022.
  4. Teixeira, Natércia; Fernando Pina; Nabais, Paula; Sotoudeh, Malihe; Victor de Freitas; Maria João Melo. "Unveiling the color and stability of the black complexes behind iron gall inks". Paper presented in Gordon Research Conference on Scientific Methods in Cultural Heritage Research, 2022.
  5. Teixeira, Natércia; Hiléia K. S. Souza; Tiago Filipe P. Alves; Jorge Vieira; António A. Vicente; Victor de Freitas. "Polyphenol Extraction by deep eutectic solvent for valorisation of Portuguese Green tea and their impact on Chitosan-based films properties". Paper presented in XXVII Encontro Nacional da Sociedade Portuguesa de Química, 2021.
  6. Teixeira, Natércia; Nabais, Paula; André Neto e Silva; Nuno Mateus; Fernando Pina; Maria Rangel; Maria João Melo; Victor de Freitas. "Unveiling the iron-tannin complexes behind medieval iron gall inks". Paper presented in XXX International Conference on Polyphenols, 2021.
  7. Teixeira, Natércia; Tiago Filipe P. Alves; Jorge Vieira; António A. Vicente; Victor de Freitas; Hiléia K. S. Souza. "Impact of green tea extraction in ternary deep eutectic solvent on chitosan-based films proprieties for food applications". Paper presented in XXX International Conference on Polyphenols, 2021.
  8. Teixeira, Natércia; Hiléia K. S. Souza; Tiago Filipe P. Alves; Victor de Freitas. "Green tea extract and green ionic liquids used as functional additives for chitosan films". Paper presented in Encontro de Investigação Jovem - 14ª edição, 2021.
  9. Teixeira, Natércia; Vanessa Otero; Nabais, Paula; Rafael Javier Díaz; Hermine Grigoryan; Melo, Maria João. "Uncovering al-Qalalusi 13th-century treatise on ink making: New contributions to the study of medieval iron gall inks". Paper presented in Dyes in History and Archaeology 39, 2020.
  10. Nabais, Paula; Maria João Melo; Teixeira, Natércia; Rafael Díaz Hidalgo; Victor Freitas; Fernando Pina. "Polyphenolic characterization of iron-gall inks through the use of historically accurate reconstructions". Paper presented in 3rd International Caparica Christmas Conference on Translational Chemistry, 2019.
  11. Teixeira, Natércia; Nabais, Paula; Alexandra Silva; Catarina Henriques; Filipa Silva Campos; Inês Costa; Nuno Mateus; et al. "Disclosing medieval Iberian iron-gall inks recipes through the use of historically accurate reconstructions". Paper presented in Dyes in history and Archaeology 38, 2019.
  12. Teixeira, Natércia; Sérgio Alves; José Paulo S. Farinha; Victor de Freitas. "New optical sensors for boron detection". Paper presented in XXVI Encontro Nacional Sociedade Portuguesa de Química, 2019.
  13. Teixeira, Natércia; Nabais, Paula; Nuno Mateus; Maria João Melo; Victor de Freitas. "Enlightening the phenolics compounds present in iron-gall inks obtained through the use of historically accurate reconstructions". Paper presented in Dyes in history and Archaeology 37, 2018.
  14. Teixeira, Natércia; Nabais, Paula; Mateus, Nuno; Melo, Maria João; Freitas, Victor de. "Enlightening the phenolic compounds present in iron-gall inks obtained through the use of historically accurate reconstructions". Paper presented in 37th Meeting of Dyes in History and Archaeology (DHA 37), 2018.
  15. Soares, Susana; García-Estévez, Ignacio; Ferrer-Galego, Raúl; Brás, Natércia F.; Brandão, Elsa; Silva, Mafalda Santos; Teixeira, Natércia; et al. "Interaction of human salivary proteins with food polyphenols". Paper presented in ARBRE-MOBIEU 2017, 2017.
  16. Teixeira, Natércia; Teixeira, Natércia; Mateus, N.; De Freitas, V.; Oliveira, J.. "The polyphenolic composition of grape stems – Identification, quantification and applicability". Paper presented in XIII Encontro de Química dos Alimentos, 2016.
  17. Teixeira, Natércia; Fernandes, I.; Coimbra, J.; Brás, N.F.; Mateus, N.; de Freitas, V.; Oliveira, J.. "The influence of the self-association effect on the anthocyanin copigmentation mechanism". Paper presented in XXVIIIth International Conference on Polyphenols, 2016.
  18. Teixeira, Natércia; Oliveira, J.; Maia, S.; Alhinho Da Silva, M.; Mateus, N.; de Freitas, V.; Salas, E.; Mateus, Nuno; de Freitas, Victor. "Characterization of pigments from red wine grape pomace by mass spectrometry". Paper presented in XXVIIth International Conference on Polyphenols & 8th Tannin Conference, 2014.
  19. Teixeira, Natércia; Mateus, N.; De Freitas, V.. "Synthesis of prodelphinidins". Paper presented in 4th Portuguese young chemists meeting, 2014.
  20. Teixeira, Natércia; Mateus, N.; De Freitas, V.. "Synthesis of Prodelphinidins - work in progress". Paper presented in 10º Encontro Nacional de Química Orgânica, 1º Simpósio Luso-Brasileiro de Química Orgânica, 2013.
  21. Teixeira, Natércia; Cruz, L.; Brás, N.F.; Mateus, N.; Ramos, M.J.; De Freitas, V.. "Structural features of copigmentation of oenin with different polyphenol copigments". Paper presented in 7th International Workshop on Anthocyanins, 2013.
  22. Teixeira, Natércia; Mateus, N.; De Freitas, V.. "Co-pigmentation studies involving Prodelphinidins and Anthocyanins". Paper presented in XXVIth International Conference on Polyphenols, 2012.
  23. Teixeira, Natércia; Oliveira, J.; Petrov, V.; Parola, A.J.; Pina, F.; Azevedo, J.; Brás, N.F.; et al. "Chemical behavior of methylpyranomalvidin-3-O-glucoside in aqueous solution studied by NMR and UV-Visible spectroscopy". Paper presented in Bruker: users meeting, 2012.
  24. Frederico Nave; Vesselin Petrov; Fernando Pina; Teixeira, Natércia; Nuno Mateus; Victor de Freitas. "Uncharted Waters: Thermodynamic Properties of Catechin-(4,8)-malvidin-3-O-glucoside". Paper presented in 6th International Workshop on Anthocyanins, 2011.
  25. Luís Cruz; Vesselin Petrov; Teixeira, Natércia; Nuno Mateus; Fernando Pina; Victor de Freitas. "Contribution of different types of pyranoanthocyanins to red wine color". Paper presented in In Vino Analytica Scientia, 2011.
  26. Luís Cruz; Vesselin Petrov; Teixeira, Natércia; Nuno Mateus; Fernando Pina; Victor de Freitas. "Contribution of different types of pyranoanthocyanins to red wine color". Paper presented in XII Encontro Nacional Sociedade Portuguesa de Química, 2011.
  27. Luís Cruz; Vesselin Petrov; Teixeira, Natércia; Nuno Mateus; Fernando Pina; Victor de Freitas. "Contribution of different types of pyranoanthocyanins to red wine color". Paper presented in 9th International Symposium of Oenology, 2011.
  28. Mickael da C. Santos; Ana Rodrigues; Carlos Rodrigues; Teixeira, Natércia; Victor de Freitas; Jorge A. Saraiva; Cláudia Nunes; Manuel A. Coimbra. "Effect of high hydrostatic pressure on antioxidant activity, colour, and anthocyanin content of red wine". Paper presented in Wine Active Compounds, International Conference, 2011.
  29. Teixeira, Natércia; Cruz, Luís; Brás, N.F.; Mateus, Nuno; Ramos, M.J.; Dangles, O.; de Freitas, V.. "Vinylcatechin dimers have much greater affinity for anthocyanins oenin and malvin than dimeric procyanidin B3". Paper presented in XXVth Internation Conference on Polyphenols, 2010.
  30. Teixeira, Natércia; Azevedo, Joana; Oliveira, Joana; Cruz, Luís; de Freitas, V.; Mateus, Nuno. "Antioxidant properties of red wine anthocyanin-derived pigments". Paper presented in XXVth Internation Conference on Polyphenols, 2010.
  31. Teixeira, Natércia; Nave, Frederico; Mateus, Nuno; de Freitas, V.; Dangles, O.. "Flavanolic substitution of anthocyanins: effects on copigmentation". Paper presented in XXVth Internation Conference on Polyphenols, 2010.
  32. Teixeira, Natércia; Oliveira, Joana; Azevedo, Joana; Silva, A.M.S.; Cruz, Luís; Mateus, N.; de Freitas, V.; Mateus, Nuno; de Freitas, Victor. "A new family of anthocyanin-derived pigments presenting a turquoise blue colour found in Port wine". Paper presented in XXVth Internation Conference on Polyphenols, 2010.
  33. Ana Faria; Diogo Pestana; Joana Azevedo; Teixeira, Natércia; Victor de Freitas; Isabel Azevedo; Nuno Mateus; Conceição Calhau. "Anthocyanin transport across a blood-brain barrier model". Paper presented in 5th International Workshop on Anthocyanins, 2009.
  34. Teixeira, Natércia; Cruz, Luís; Mateus, Nuno; Borges, Enrique; de Freitas, V.. "Synthesis of pyranoanthocyanins-catechin pigments". Paper presented in 5th International Workshop on Anthocyanins, 2009.
  35. Teixeira, Natércia; Luís Cruz; Nuno Mateus; José Rodrígues-Borges. "Two diastereoisomers of vinylcatechin dimers obtained from an unusual acid catalyzed dimerization". Paper presented in 8º Encontro Nacional de Química Orgânica, 2009.
  36. Teixeira, Natércia; Cruz, Luís; Silva, Artur; Mateus, N.; Borges, Enrique; de Freitas, V.. "Formation of new compounds from the reaction between malvidin-3-glucoside and 8-vinylcatechin". Paper presented in In Vino Analytica Scientia, 2009.
  37. Teixeira, Natércia; Oliveira, Joana; Cruz, Luís; Mateus, N.; de Freitas, V.. "Different chemical pathways leading to the formation of portisins in red wines". Paper presented in In Vino Analytica Scientia, 2009.
  38. Teixeira, Natércia; Nave, Frederico; Mateus, Nuno; de Freitas, V.. "Flavanol-anthocyanin dimers: a new hemisynthetic approach". Paper presented in In Vino Analytica Scientia, 2009.
  39. Reed, M.G.. "The role of vinylcatechin in the formation of new pigments during the aging of red wine". Paper presented in Química dos Alimentos, 2009.
    10.2523/20149-ms
  40. Teixeira, Natércia; Cruz, Luís; Mateus, N.; de Freitas, V.. "Synthesis of new pyranoanthocyanins through reactions between 8-vinylcatechin and different anthocyanins". Paper presented in XXIVth International Conference on Polyphenols, 2008.
  41. Teixeira, Natércia; Cruz, Luís; Silva, A.M.S.; Mateus, N.; Borges, José; de Freitas, V.. "Synthesis, structural characterization and chromatic features of two pyranoanthocyanin-(+)-catechin pigments". Paper presented in XXIVth International Conference on Polyphenols, 2008.
  42. Teixeira, Natércia; Cruz, Luís; Silva, Artur; Mateus, N.; Borges, Enrique; de Freitas, V.. "The crucial role of 8-vinylcatechin in the synthesis of anthocyanin-derived pigments". Paper presented in Macrowine, 2008.
Journal article
  1. Santo, Mara; Cardon, Dominique; Teixeira, Natércia; Nabais, Paula. "Yellow Dyes of Historical Importance: A Handful of Weld Yellows from the 18th-Century Recipe Books of French Master Dyers Antoine Janot and Paul Gout". Heritage 6 12 (2023): 7466-7481. https://www.mdpi.com/2571-9408/6/12/391.
    Published • https://doi.org/10.3390/heritage6120391
  2. Nabais, Paula; Malcolm-Davies, Jane; Melo, Maria João; Teixeira, Natércia; Behlen, Beatrice. "Early modern knitted caps (fifteenth to sixteenth centuries): analyzing dyes in archaeological samples using microspectrofluorimetry complemented by HPLC–MS". Heritage Science 11 1 (2023): http://dx.doi.org/10.1186/s40494-023-01020-4.
    Published • 10.1186/s40494-023-01020-4
  3. Díaz Hidalgo, Rafael Javier; Córdoba, Ricardo; Grigoryan, Hermine; Vieira, Márcia; Melo, Maria J.; Nabais, Paula; Otero, Vanessa; et al. "The making of black inks in an Arabic treatise by al-Qalalusi dated from the 13th c.: reproduction and characterisation of iron-gall ink recipes". Heritage Science 11 1 (2023): http://dx.doi.org/10.1186/s40494-022-00823-1.
    Published • 10.1186/s40494-022-00823-1
  4. Tiago Filipe P. Alves; Natércia Teixeira; Jorge Vieira; António A. Vicente; Nuno Mateus; Victor de Freitas; Hiléia K.S. Souza. "Sustainable chitosan packaging films: Green tea polyphenolic extraction strategies using deep eutectic solvents". Journal of Cleaner Production (2022): https://doi.org/10.1016/j.jclepro.2022.133589.
    10.1016/j.jclepro.2022.133589
  5. Melo, Maria João; Otero, Vanessa; Nabais, Paula; Teixeira, Natércia; Pina, Fernando; Casanova, Conceição; Fragoso, Sara; Sequeira, Sílvia O.. "Iron-gall inks: a review of their degradation mechanisms and conservation treatments". Heritage Science 10 1 (2022): http://dx.doi.org/10.1186/s40494-022-00779-2.
    Published • 10.1186/s40494-022-00779-2
  6. Joana Azevedo; Joana Pinto; Natércia Teixeira; Joana Oliveira; Miguel Cabral; Paula Guedes de Pinho; Paulo Lopes; Nuno Mateus; Victor de Freitas. "The Impact of Storage Conditions and Bottle Orientation on the Evolution of Phenolic and Volatile Compounds of Vintage Port Wine". Foods (2022): https://doi.org/10.3390/foods11182770.
    10.3390/foods11182770
  7. Teixeira, Natércia; Nabais, Paula; de Freitas, Victor; Lopes, João A.; Melo, Maria J.. "In-depth phenolic characterization of iron gall inks by deconstructing representative Iberian recipes". Scientific Reports 11 1 (2021): http://dx.doi.org/10.1038/s41598-021-87969-3.
    Open access • Published • 10.1038/s41598-021-87969-3
  8. Oliveira, Joana; Azevedo, Joana; Teixeira, Natércia; Araújo, Paula; de Freitas, Victor; Basílio, Nuno; Pina, Fernando. "On the Limits of Anthocyanins Co-Pigmentation Models and Respective Equations". Journal of Agricultural and Food Chemistry 69 4 (2021): 1359-1367. http://dx.doi.org/10.1021/acs.jafc.0c05954.
    10.1021/acs.jafc.0c05954
  9. Nabais, P.; Oliveira, J.; Pina, F.; Teixeira, N.; de Freitas, V.; Brás, N. F.; Clemente, A.; et al. "A 1000-year-old mystery solved: Unlocking the molecular structure for the medieval blue from Chrozophora tinctoria, also known as folium". Science Advances 6 16 (2020): eaaz7772. http://dx.doi.org/10.1126/sciadv.aaz7772.
    Published • 10.1126/sciadv.aaz7772
  10. Mendoza, Johan; Oliveira, Joana; Araújo, Paula; Basílio, Nuno; Teixeira, Natércia; Brás, Natércia F.; Pina, Fernando; Yoshida, Kumi; de Freitas, Victor. "The peculiarity of malvidin 3-O-(6-O-p-coumaroyl) glucoside aggregation. Intra and intermolecular interactions". Dyes and Pigments (2020): 108382. http://dx.doi.org/10.1016/j.dyepig.2020.108382.
    Accepted • 10.1016/j.dyepig.2020.108382
  11. Díaz Hidalgo, R.J.; Córdoba, R.; Nabais, P.; Silva, V.; Melo, M.J.; Pina, F.; Teixeira, N.; Freitas, V.. "New insights into iron-gall inks through the use of historically accurate reconstructions". Heritage Science 6 1 (2018): http://www.scopus.com/inward/record.url?eid=2-s2.0-85056296846&partnerID=MN8TOARS.
    10.1186/s40494-018-0228-8
  12. Soares, S.; García-Estévez, I.; Ferrer-Galego, R.; Brás, N.F.; Brandão, E.; Silva, M.; Teixeira, N.; et al. "Study of human salivary proline-rich proteins interaction with food tannins". Food Chemistry 243 (2018): 175-185. http://www.scopus.com/inward/record.url?eid=2-s2.0-85030457914&partnerID=MN8TOARS.
    10.1016/j.foodchem.2017.09.063
  13. Teixeira, N.; Mateus, N.; de Freitas, V.; Oliveira, J.. "Wine industry by-product: Full polyphenolic characterization of grape stalks". Food Chemistry 268 (2018): 110-117. http://www.scopus.com/inward/record.url?eid=2-s2.0-85048721133&partnerID=MN8TOARS.
    10.1016/j.foodchem.2018.06.070
  14. Guerreiro, J.R.L.; Teixeira, N.; De Freitas, V.; Sales, M.G.F.; Sutherland, D.S.. "A saliva molecular imprinted localized surface plasmon resonance biosensor for wine astringency estimation". Food Chemistry 233 (2017): 457-466. http://www.scopus.com/inward/record.url?eid=2-s2.0-85018312714&partnerID=MN8TOARS.
    10.1016/j.foodchem.2017.04.051
  15. Fernandes, A.; Oliveira, J.; Teixeira, N.; Mateus, N.; De Freitas, V.. "A review of the current knowledge of red wine colour". Journal International des Sciences de la Vigne et du Vin 51 1 (2017): 1-21. http://www.scopus.com/inward/record.url?eid=2-s2.0-85020924858&partnerID=MN8TOARS.
    10.20870/oeno-one.2017.51.1.1604
  16. Fernandes, A.; Oliveira, J.; Teixeira, N.; Mateus, N.; De Freitas, V.. "A review of the current knowledge of red wine colour". Oeno One 51 1 (2017): http://www.scopus.com/inward/record.url?eid=2-s2.0-85053259078&partnerID=MN8TOARS.
  17. Teixeira, N.; Mateus, N.; de Freitas, V.. "Experimental data for the synthesis of a new dimeric prodelphinidin gallate". Data in Brief 8 (2016): 631-636. http://www.scopus.com/inward/record.url?eid=2-s2.0-84976873254&partnerID=MN8TOARS.
    10.1016/j.dib.2016.06.023
  18. Teixeira, N.; Mateus, N.; de Freitas, V.. "Updating the research on prodelphinidins from dietary sources". Food Research International 85 (2016): 170-181. http://www.scopus.com/inward/record.url?eid=2-s2.0-84965135658&partnerID=MN8TOARS.
    10.1016/j.foodres.2016.04.026
  19. Teixeira, N.; Azevedo, J.; Mateus, N.; De Freitas, V.. "Proanthocyanidin screening by LC-ESI-MS of Portuguese red wines made with teinturier grapes". Food Chemistry 190 (2016): 300-307. http://www.scopus.com/inward/record.url?eid=2-s2.0-84930225060&partnerID=MN8TOARS.
    10.1016/j.foodchem.2015.05.065
  20. Nunes, C.; Teixeira, N.; Serra, D.; Freitas, V.; Almeida, L.; Laranjinha, J.; Teixeira, Natércia. "Red wine polyphenol extract efficiently protects intestinal epithelial cells from inflammation via opposite modulation of JAK/STAT and Nrf2 pathways". Toxicology Research 5 1 (2016): 53-65. http://www.scopus.com/inward/record.url?eid=2-s2.0-84951861397&partnerID=MN8TOARS.
    10.1039/c5tx00214a
  21. Oliveira, J.; Alhinho Da Silva, M.; Teixeira, N.; De Freitas, V.; Salas, E.. "Screening of Anthocyanins and Anthocyanin-Derived Pigments in Red Wine Grape Pomace Using LC-DAD/MS and MALDI-TOF Techniques". Journal of Agricultural and Food Chemistry 63 35 (2015): 7636-7644. http://www.scopus.com/inward/record.url?eid=2-s2.0-84941143645&partnerID=MN8TOARS.
    10.1021/acs.jafc.5b00256
  22. Figueiredo-González, M.; Cancho-Grande, B.; Simal-Gándara, J.; Teixeira, N.; Mateus, N.; De Freitas, V.. "The phenolic chemistry and spectrochemistry of red sweet wine-making and oak-aging". Food Chemistry 152 (2014): 522-530. http://www.scopus.com/inward/record.url?eid=2-s2.0-84891620180&partnerID=MN8TOARS.
    10.1016/j.foodchem.2013.12.018
  23. Azevedo, J.; Oliveira, J.; Cruz, L.; Teixeira, N.; Brás, N.F.; De Freitas, V.; Mateus, N.. "Antioxidant features of red wine pyranoanthocyanins: Experimental and theoretical approaches". Journal of Agricultural and Food Chemistry 62 29 (2014): 7002-7009. http://www.scopus.com/inward/record.url?eid=2-s2.0-84904791617&partnerID=MN8TOARS.
    10.1021/jf404735j
  24. Teixeira, N.; Cruz, L.; Brás, N.F.; Mateus, N.; Ramos, M.J.; De Freitas, V.. "Structural features of copigmentation of oenin with different polyphenol copigments". Journal of Agricultural and Food Chemistry 61 28 (2013): 6942-6948. http://www.scopus.com/inward/record.url?eid=2-s2.0-84880375401&partnerID=MN8TOARS.
    10.1021/jf401174b
  25. Nave, F.; Brás, N.F.; Cruz, L.; Teixeira, N.; Mateus, N.; Ramos, M.J.; Di Meo, F.; et al. "Influence of a flavan-3-ol substituent on the affinity of anthocyanins (Pigments) toward vinylcatechin dimers and proanthocyanidins (copigments)". Journal of Physical Chemistry B 116 48 (2012): 14089-14099. http://www.scopus.com/inward/record.url?eid=2-s2.0-84870777005&partnerID=MN8TOARS.
    10.1021/jp307782y
  26. Azevedo, J.; Teixeira, N.; Oliveira, J.; De Freitas, V.; Mateus, N.. "Effect of sugar acylation on the antioxidant properties of Vitis vinifera red grape malvidin-3-glucoside". International Journal of Food Science and Technology 46 2 (2011): 343-349. http://www.scopus.com/inward/record.url?eid=2-s2.0-78651366123&partnerID=MN8TOARS.
    10.1111/j.1365-2621.2010.02497.x
  27. Oliveira, J.; Petrov, V.; Parola, A.J.; Pina, F.; Azevedo, J.; Teixeira, N.; Brás, N.F.; et al. "Chemical behavior of methylpyranomalvidin-3-o-glucoside in aqueous solution studied by NMR and UV-visible spectroscopy". Journal of Physical Chemistry B 115 6 (2011): 1538-1545. http://www.scopus.com/inward/record.url?eid=2-s2.0-79951538171&partnerID=MN8TOARS.
    10.1021/jp110593c
  28. Cruz, L.; Brás, N.F.; Teixeira, N.; Mateus, N.; Ramos, M.J.; Dangles, O.; De Freitas, V.. "Vinylcatechin dimers are much better copigments for anthocyanins than catechin dimer procyanidin B3". Journal of Agricultural and Food Chemistry 58 5 (2010): 3159-3166. http://www.scopus.com/inward/record.url?eid=2-s2.0-77949371017&partnerID=MN8TOARS.
    10.1021/jf9037419
  29. Nave, F.; Teixeira, N.; Mateus, N.; de Freitas, V.. "Hemisynthesis and structural characterization of flavanol-(4,8)-vitisins by mass spectrometry". Rapid Communications in Mass Spectrometry 24 14 (2010): 1964-1970. http://www.scopus.com/inward/record.url?eid=2-s2.0-77954496152&partnerID=MN8TOARS.
    10.1002/rcm.4599
  30. Oliveira, J.; Azevedo, J.; Silva, A.M.S.; Teixeira, N.; Cruz, L.; Mateus, N.; De Freitas, V.. "Pyranoanthocyanin dimers: A new family of turquoise blue anthocyanin-derived pigments found in port wine". Journal of Agricultural and Food Chemistry 58 8 (2010): 5154-5159. http://www.scopus.com/inward/record.url?eid=2-s2.0-77951289061&partnerID=MN8TOARS.
    10.1021/jf9044414
  31. Cruz, L.; Petrov, V.; Teixeira, N.; Mateus, N.; Pina, F.; Freitas, V.D.. "Establishment of the chemical equilibria of different types of pyranoanthocyanins in aqueous solutions: Evidence for the formation of aggregation in pyranomalvidin-3- O -coumaroylglucoside-(+)-catechin". Journal of Physical Chemistry B 114 41 (2010): 13232-13240. http://www.scopus.com/inward/record.url?eid=2-s2.0-77958077688&partnerID=MN8TOARS.
    10.1021/jp1045673
  32. Nave, F.; Teixeira, N.; Mateus, N.; de Freitas, V.. "The fate of flavanol-anthocyanin adducts in wines: Study of their putative reaction patterns in the presence of acetaldehyde". Food Chemistry 121 4 (2010): 1129-1138. http://www.scopus.com/inward/record.url?eid=2-s2.0-77949490555&partnerID=MN8TOARS.
    10.1016/j.foodchem.2010.01.060
  33. Nave, F.; Petrov, V.; Pina, F.; Teixeira, N.; Mateus, N.; De Freitas, V.. "Thermodynamic and kinetic properties of a red wine pigment: Catechin-(4,8)-malvidin-3-O-glucoside". Journal of Physical Chemistry B 114 42 (2010): 13487-13496. http://www.scopus.com/inward/record.url?eid=2-s2.0-77958475326&partnerID=MN8TOARS.
    10.1021/jp104749f
  34. Cruz, L.; Brás, N.F.; Teixeira, N.; Fernandes, A.N.A.; Mateus, N.; Ramos, M.J.; Rodríguez-Borges, J.; De Freitas, V.. "Synthesis and structural characterization of two diasteroisomers of vinylcatechin dimers". Journal of Agricultural and Food Chemistry 57 21 (2009): 10341-10348. http://www.scopus.com/inward/record.url?eid=2-s2.0-70449120689&partnerID=MN8TOARS.
    10.1021/jf901608n
  35. Cruz, L.; Teixeira, N.; Silva, A.M.S.; Mateus, N.; Borges, J.; De Freitas, V.. "Role of vinylcatechin in the formation of pyranomalvidin-3-glucoside-(+)- catechin". Journal of Agricultural and Food Chemistry 56 22 (2008): 10980-10987. http://www.scopus.com/inward/record.url?eid=2-s2.0-57849098859&partnerID=MN8TOARS.
    10.1021/jf8021496
Thesis / Dissertation
  1. Faculdade de Ciências. "Study of Prodelphinidins: synthesis, detection, identification and reactivity with anthocyanins". PhD, 2015. http://hdl.handle.net/10216/81677.
  2. Teixeira, Natércia. "Study of the effect of different vinification techniques on the polyphenolic composition of wines". Master, Universidade do Porto Faculdade de Ciências, 2008.
  3. Teixeira, Natércia. "Characterization of Polyphenolic Composition of Douro Demarcated Region Grapes: Effect of Watering". Degree, Universidade do Porto Faculdade de Ciências, 2007.
Activities

Oral presentation

Presentation title Event name
Host (Event location)
2023/11/24 Elaboration of naturally sweet catechin formulations for cognitive development enhancement. XXVII Encontro Luso Galego de Química
(Porto, Portugal)
2023/11/01 Dyestuff identification in 16th-century waistcoats: a multi-analytical approach. 42nd Dyes in History & Archaeology conference
(Copenhagen, Denmark)
2023/10/31 Mémoires de Teinture: The Yellows from an 18th- Century Recipe Book by Paul Gout. 42nd Dyes in History & Archaeology conference
(Copenhagen, Denmark)
2023/07/06 Back from the past: Polyphenols as eco-innovative mordanting solutions for the textile dyeing industry. XXXI International Conference on Polyphenols
Groupe Polyphénols (Nantes, France)
2023/05/10 Development of new stable catechin formulations for cognitive development enhancement. Investigação Jovem da Universidade do Porto
Universidade do Porto (Porto, Portugal)
2023/05/09 Medieval writing: the chemistry behind iron gall inks. Technart 2023
(Lisbon, Portugal)
2023/04/27 In the darkness of the lamp. Elaboration of carbon and mixed inks from the light of a source of al-Andalus. XIV INTERNATIONAL CONGRESS ON THE HISTORY OF PAPER
Hispanic Association of Paper Historians (Toledo, Spain)
2022/10/13 Poster snapshot: To be or not to be an iron gall ink: a multi-analytical methodology for the study of iron-polyphenol complexes Dyes in History and Arqueology 41
Swedish National Heritage Board (Visby, Sweden)
2022/08/28 Unveiling the iron-polyphenol complexes behind medieval iron gall inks through a muti-analytical methodology. 8th EuChemS Chemistry Congress
European Chemistry Society (Lisbon, Portugal)
2020/10 Poster snapshot: Uncovering al-Qalalusi 13th-century treatise on ink making: New contributions to the study of medieval iron gall inks. Dyes in History and Archaeology 39
(Sibiu, Romania)
2019/11/06 Poster snapshot: Disclosing medieval Iberian iron-gall inks recipes through the use of historically accurate reconstructions Dyes in History and Archaeology 38
(Amsterdam, Netherlands)
2019/07/24 Study of five iberian medieval iron-gall inks obtained through the use of historically accurate reconstructions. XXVI Encontro Nacional Sociedade Portuguesa de Química
SPQ (Porto, Portugal)
2019/06/12 The art of making medieval writing inks in Al-Andalus: What the written sources tell us and what brings us the experimental evidence. XIII Congresso Internacional Historia del papel en la Península Ibérica
Asociación Hispánica de Historiadores del Papel (Málaga, Spain)
2018/10 Poster snapshot: Enlightening the phenolics compounds present in iron-gall inks obtained through the use of historically accurate reconstructions Dyes in history and Archaeology 37
(Almada, Portugal)
2018 Advances on iron gall inks: revealing the complex polyphenol systems used to write the medieval book XXIXth Internation Conference on Polyphenols
(Madinson, United States)
2018 Enlightening the phenolics compounds present in iron-gall inks obtained through the use of historically accurate reconstructions XXIV Encontro Luso-Galego de Química
(Porto, Portugal)
2017/07 Grape stalks: an added value polyphenolic source? In Vino Analytica Scientia
(Salamanca, Spain)
2017 Mass spectrometry analysis (MALDI-TOF and Orbitrap ESI-MS) of anthocyanins (monomeric and oligomeric) from red wine grape pomace In Vino Analytica Scientia
(Salamanca, Spain)
2017 The dark-side of polyphenols in medieval manuscripts: a study on iron gall inks Dyes in History and Archaeology 36
(Londres, United Kingdom)
2015 Analysis of grape seed tannins by mass spectrometry (MALDI-TOF and Orbitrap ESI-MS) In Vino Analytica Scientia
(Mezzocorona, Italy)
2010 8-vinylcatechin dimerization lead to the formation of two diasteroisomers of vinylcatechin dimers XXVth Internation Conference on Polyphenols – Montpellier, France
(Montpellier, France)

Supervision

Thesis Title
Role 		Degree Subject (Type)
Institution / Organization
2023/09/01 - Current Estudo de tingimentos eco-inovadores da lã a partir de subprodutos da indústria agroalimentar, inspirados em técnicas usadas no passado.
Co-supervisor
 Química, Ambiente e Qualidade (Scientific initiation)
Universidade do Porto Faculdade de Ciências, Portugal
2023 - Current Eco-innovative solutions for dyeing wool inspired by lost ancient knowledge.
Supervisor
 PhD in Sustainable Chemistry (PhD)
Universidade do Porto Faculdade de Ciências, Portugal
2022/09/01 - Current Development of pharmaceutical formulations containing green tea catechins extracted with natural solvents.
Co-supervisor of Tiago Alves
 MSc in Pharmaceutical Chemistry (Master)
Universidade do Porto Faculdade de Farmácia, Portugal
2024/04/01 - 2028/03/31 Eco-innovative solutions for dyeing wool inspired by lost ancient knowledge.
Supervisor of Hamid Rahmani
 PhD programme in Sustainable Chemistry (PhD)
REQUIMTE LAQV Porto, Portugal
2023/02/06 - 2023/07/04 Study of the use of biomordents to increase the sustainability of dyeing in the textile industry
Supervisor
 Extracurricular Internship Program (PEEC) (Scientific initiation)
Universidade do Porto Faculdade de Ciências, Portugal
2022/03/07 - 2022/06/30 Chrozophora tinctoria: Study of pigments present in medieval art to discover sustainable contemporary applications
Co-supervisor of Ana Pinto
 Bachelor in Bioengineering (Degree)
Universidade do Porto Faculdade de Engenharia, Portugal
2020/10/06 - 2021/11/25 New food dyes: from the study of the interaction of metals with anthocyanins to the discovery of new natural molecules.
Supervisor
 Food Science and Technology (Master)
Universidade do Porto Faculdade de Ciências, Portugal
2021/02/12 - 2021/07/08 Using polyphenolic compounds for the production of active packaging materials.
Co-supervisor of Tiago Filipe Pereira Alves
 Chemistry (Degree)
Universidade do Porto Faculdade de Ciências, Portugal
2019/01 - 2019/12 Implementation of Loureiro Premium and Vinhão Premiere protocols and subsequent characterization of wines.
Supervisor
 Tecnologia e Ciência Alimentar (Master)
Universidade do Porto Faculdade de Ciências, Portugal
2019/02/05 - 2019/07/31 Polyphenols in Art
Supervisor
 PEEC (Scientific initiation)
Universidade do Porto Faculdade de Ciências, Portugal
2019/02/05 - 2019/07/31 Polyphenols in Art
Supervisor
 PEEC (Scientific initiation)
Universidade do Porto Faculdade de Ciências, Portugal
2019/02/02 - 2019/07/08 Polyphenols in art - research on iron-gall inks
Supervisor
 Química (Degree)
Universidade do Porto Faculdade de Ciências, Portugal
2019/02/02 - 2019/07/08 Polyphenols in art - research on iron-gall inks
Supervisor
 Bioquímica (Degree)
Universidade do Porto Faculdade de Ciências, Portugal
2018/01 - 2018/12 New tendencies of red Vinho Verde.
Supervisor
 Tecnologia e Ciência Alimentar (Master)
Universidade do Porto Faculdade de Ciências, Portugal
2013/01 - 2013/11 Isolation and purification of polyphenols from wine and barley. Analysis of antioxidant properties.
Co-supervisor
 Química (Degree)
Universidade do Porto Faculdade de Ciências, Portugal

Event organisation

Event name
Type of event (Role) 		Institution / Organization
2022/08/31 - 2022/08/31 The perfect medieval hand-writing (2022/08/28 - 2022/09/01)
Workshop (Member of the Organising Committee)
 EuChemS, Belgium
2022/05/19 - 2022/05/19 Writing and the art of medieval illumination-Monumental Bibles of the Monastery of Santa Cruz de Coimbra: know, disseminate and preserve: To write as in the Middle Ages, we will use materials and writing instruments as close as possible to those used at that time. From recipes described in Iberian sources, we will prepare medieval writing inks based on galls, also known as iron-gallic inks. We will also reproduce a text with the perfect calligraphy of medieval copyists. (2022/05/19 - 2022/05/19)
Workshop (Member of the Organising Committee)
 Municipal Public Library of Porto, Portugal
2019/07/24 - 2019/07/26 XXVI Encontro Nacional da SPQ (2019/07/24 - 2019/07/26)
Congress (Member of the Organising Committee)
 Universidade do Porto Faculdade de Ciências, Portugal
2018/11/21 - 2018/11/23 XXIV Encontro Luso-Galego de Química (2018/11/21 - 2018/11/23)
Congress (Member of the Organising Committee)
 Sociedade Portuguesa de Química, Portugal
2013/09/09 - 2013/09/11 7th International Workshop on Anthocyanins (2013/09/09 - 2013/09/11)
Congress (Member of the Organising Committee)
 Universidade do Porto Faculdade de Ciências, Portugal

Jury of academic degree

Topic
Role 		Candidate name (Type of degree)
Institution / Organization
2022/02/09 Natural Yellow Dyes in Persian Carpets: A Holistic Approach
(Thesis) Arguer
 Samaneh Sharif (PhD)
Universidade NOVA de Lisboa Faculdade de Ciências e Tecnologia, Portugal
2021/11/25 New food dyes: from the study of the interaction of metals with anthocyanins to the discovery of new natural molecules.
Supervisor
 Sara Ferreira Alves (Master)
Universidade do Porto Faculdade de Ciências, Portugal
2019/11/05 Protocols (vinification and fermentation) Loureiro Premium e Vinho Premiere of cold maceration, and respective characterization.
Supervisor
 Patrícia Alexandra Gomes Gonçalves (Master)
Universidade do Porto Faculdade de Ciências, Portugal
2019/07/08 Polyphenols in art - research on iron-gall inks
Supervisor
 Filipa Alexandra Silva Campos (Other)
Universidade do Porto Faculdade de Ciências, Portugal
2019/07/08 Polyphenols in art - research on iron-gall inks
Supervisor
 Inês Duarte e Costa (Other)
Universidade do Porto Faculdade de Ciências, Portugal
2019/07 Profile of Phenolic Compounds in Red Wines Aged in Barrels with Different Degrees of Oxygenation.
(Thesis) Main arguer
 Catarina Maria de Almeida Esteves (Other)
Universidade do Porto Faculdade de Ciências, Portugal
2018/12/04 New tendencies of red Vinho Verde.
Supervisor
 Nídia Teima Navarro de Noronha (Master)
Universidade do Porto Faculdade de Ciências, Portugal
2018/11/14 Physical-chemical characterization of two white wines (monovarietal and multivariate) in the cooperative winery of Vila Real
(Thesis) Main arguer
 Marie-Line Carvalho dos Santos (Master)
Universidade do Porto Faculdade de Ciências, Portugal

Ad Hoc journal article review

Journal title (ISSN) Publisher
2022 - Current Journal of Food and Nutrition (2375-6829) JScholar
2021 - Current Applied Sciences (2076-3417) MDPI
2021 - Current Antioxidants (2076-3921) MDPI
2021 - Current Food Quality and Safety (2399-1399) Oxford University Press
2020 - Current Food Chemistry (0308-8146) Elsevier
2020 - Current Plants (2223-7747) MDPI
2020 - Current Molecules (1420-3049) MDPI
2019 - Current Foods (2304-8158) MDPI

Committee member

Activity description
Role 		Institution / Organization
2023 - Current Member of the Chemistry and Biochemistry Department Researchers' Committee, elected by fellow colleagues. The aim of this Committee is to assist the development and science outreach activities of this department. It also envisions to improve the working conditions of its researchers.
Member
 Universidade do Porto Faculdade de Ciências, Portugal

Course / Discipline taught

Academic session Degree Subject (Type) Institution / Organization
2021/03/01 - Current Chemistry Laboratory Biochemistry (Licenciatura) Universidade do Porto Faculdade de Ciências, Portugal
2023/02/01 - 2023/07/31 Collaboration with Teaching: Responsible to teach at one class of Chemistry Laboratory I, during the first year of BsC degree in Biochemistry. Chemistry Laboratory I (Licenciatura) Universidade do Porto Faculdade de Ciências, Portugal
2022/02/01 - 2022/07/31 Collaboration with Teaching: Responsible to teach at one class of Chemistry Laboratory I, during the first year of BsC degree in Biochemistry. Chemistry Laboratory I (Licenciatura) Universidade do Porto Faculdade de Ciências, Portugal
2021/02/01 - 2021/07/31 Collaboration with Teaching: Responsible to teach at one class of Chemistry Laboratory I, during the first year of BsC degree in Biochemistry. Chemistry Laboratory I (Licenciatura) Universidade do Porto Faculdade de Ciências, Portugal
2021/05/26 - 2021/05/26 Research seminar on medieval codices: Art and Science in the production of illuminated manuscripts Master in History and Heritage (Mestrado) Universidade do Porto Faculdade de Letras, Portugal
2018/09/17 - 2018/09/21 Chemistry and Society - Workshop "For a Sustainable Conservation of Cultural Heritage" Master in Chemistry (Mestrado) Universidade do Porto Faculdade de Ciências, Portugal