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Unlocking the fatty acid and antioxidant profile of grape pomace: a systematic assessment across varieties and vintages for its sustainable valorization

2025-07-28Journal article Open access
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datacite.subject.fosCiências Agrárias::Biotecnologia Agrária e Alimentar
datacite.subject.fosCiências Naturais::Ciências Químicas
datacite.subject.fosEngenharia e Tecnologia::Engenharia Química
datacite.subject.fosEngenharia e Tecnologia::Engenharia Química
dc.contributor.authorAbreu, Teresa
dc.contributor.authorFerreira, Rui
dc.contributor.authorCastilho, Paula C.
dc.contributor.authorCâmara, José S.
dc.contributor.authorTeixeira, Juan
dc.contributor.authorPerestrelo, Rosa
dc.contributor.authorDe Abreu Abreu, Maria Teresa
dc.contributor.authorFerreira, Rui
dc.contributor.authorCastilho, Paula C
dc.contributor.authorCâmara, José
dc.contributor.authorPerestrelo, Rosa
dc.date.accessioned2025-09-05T13:29:15Z
dc.date.available2025-09-05T13:29:15Z
dc.date.issued2025-07-28
dc.description.abstract<jats:p>Grape pomace (GP), the main by-product of the wine industry, represents a valuable source of bioactive metabolites with significant potential for valorization in the context of sustainable bioresource management. This study systematically characterizes the fatty acid methyl ester (FAME) profile, total phenolic content (TPC), total flavonoid content (TFC), and antioxidant activities (DPPH, ABTS, ORAC) of GP derived from seven grape varieties across three consecutive vintages (2022–2024). White GP, particularly Verdelho and Sercial, exhibited a superior lipid quality with high concentrations of methyl linoleate (up to 1997 mg/100 g DW) and methyl oleate (up to 1294 mg/100 g DW), low atherogenic (AI &lt; 0.05) and thrombogenic indices (TI ≤ 0.13), and elevated PUFA/SFA ratios (≥8.2). In contrast, red GP, especially from Complexa and Tinta Negra, demonstrated the highest antioxidant potential, with TPC values up to 6687 mgGAE/100 g DW, TFC up to 4624 mgQE/100 g DW, and antioxidant activities reaching 5399 mgTE/100 g (DPPH) and 7219 mgTE/100 g (ABTS). Multivariate statistical analyses (PCA, PLS-DA, HCA) revealed distinct varietal and vintage-dependent clustering and identified key discriminant fatty acids, including linolenic acid (C18:3), lauric acid (C12:0), and arachidic acid (C20:0). These findings underscore the compositional diversity and functional potential of GP, reinforcing its suitability for applications in functional foods, nutraceuticals, and cosmetics, in alignment with circular economy principles.</jats:p>eng
dc.identifier.citationAbreu, T.; Ferreira, R.; Castilho, P.C.; Câmara, J.S.; Teixeira, J.; Perestrelo, R. Unlocking the Fatty Acid and Antioxidant Profile of Grape Pomace: A Systematic Assessment Across Varieties and Vintages for Its Sustainable Valorization. Molecules 2025, 30, 3150. https://doi.org/ 10.3390/molecules30153150
dc.identifier.doi10.3390/molecules30153150
dc.identifier.issn1420-3049
dc.identifier.urihttp://hdl.handle.net/10400.13/7371
dc.language.isoeng
dc.peerreviewedyes
dc.publisherMDPI
dc.relationMadeira Chemistry Research Centre
dc.relationMadeira Chemistry Research Centre
dc.relation2022.11323.BDANA
dc.relation.ispartofMolecules
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectGrape pomace
dc.subjectFatty acid profile
dc.subjectAntioxidant activity
dc.subjectCircular economy
dc.subjectNutraceuticals
dc.subject.
dc.subjectCentro de Química da Madeira
dc.subjectFaculdade de Ciências Exatas e da Engenharia
dc.titleUnlocking the fatty acid and antioxidant profile of grape pomace: a systematic assessment across varieties and vintages for its sustainable valorizationeng
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleMadeira Chemistry Research Centre
oaire.awardTitleMadeira Chemistry Research Centre
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00674%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F00674%2F2020/PT
oaire.citation.issue15
oaire.citation.titleMolecules
oaire.citation.volume30
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameDe Abreu Abreu
person.familyNameFerreira
person.familyNameCastilho
person.familyNameCâmara
person.familyNamePerestrelo
person.givenNameMaria Teresa
person.givenNameRui
person.givenNamePaula C
person.givenNameJosé
person.givenNameRosa
person.identifierhttps://scholar.google.com/citations?hl=pt-BR&user=YT8V7XQAAAAJ
person.identifierA-4412-2013
person.identifierG-3003-2013
person.identifier1441319
person.identifier.ciencia-id8717-BA60-E569
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person.identifier.ciencia-id481C-08CE-90E5
person.identifier.ciencia-id251A-D5F7-9E32
person.identifier.orcid0000-0003-1467-4332
person.identifier.orcid0000-0002-8303-4286
person.identifier.orcid0000-0003-1965-3151
person.identifier.orcid0000-0002-7223-1022
person.identifier.ridI-2307-2014
person.identifier.scopus-author-id10140393000
person.identifier.scopus-author-id16686828800
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
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