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Phenolic profile of Cynara scolymus L. and Silybum marianum (L.) Gaertn. aqueous and hydromethanolic extracts

2021Documento de conferência Acesso aberto
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dc.contributor.authorLeichtweis, Maria Gabriela
dc.contributor.authorPereira, Carla
dc.contributor.authorFerreira, Isabel C.F.R.
dc.contributor.authorBarros, Lillian
dc.date.accessioned2024-11-18T15:57:32Z
dc.date.available2024-11-18T15:57:32Z
dc.date.issued2021
dc.description.abstractThe flowers and leaves of Cynara scolymus L. (artichoke) and the leaves of Silybum marianum (L.) Gaertn. (milk thistle), medicinal plants native to the Mediterranean Basin, are used in the treatment of liver, spleen, and gallbladder disorders[1], and for their cholagogue, choleretic, and choliokinetic actions, as also for the treatment of dyspepsia and as anti-diabetics[2], respectively. The beneficial properties of medicinal plants are often ascribed to their phenolic composition, among a large diversity of phytochemicals. Thereby, the aim of the present study was to obtain and compare the phenolic profiles of artichoke and milk thistle aqueous and hydromethanolic (80% ethanol, v/v) extracts, using HPLC-DAD-ESI/MS. The aqueous extract of artichoke presented a higher concentration of phenolic compounds than the hydromethanolic extract, with slight differences between the respective profiles; the major flavonoid found in the aqueous and hydromethanolic extract was luteolin-7-O-glucuronide, followed by luteolin-7-O-glucoside. Monocaffeoylquinic acid derivatives were only present in the hydromethanolic extract, being 5-O-caffeoylquinic acid the most abundant one, while dicaffeoylquinic acid derivatives were mostly identified in the aqueous extract; 1,3-O-dicaffeoylquinic acid was the most abundant one in both extracts. Regarding milk thistle preparations, similar profiles were observed, with only quantitative differences between them. The aqueous extract revealed a higher phenolic compounds concentration than the hydromethanolic extract, with apigenin-7-O-glucuronide as the major compound quantified in both preparations. Total flavonoids were higher in the aqueous extract, with apigenin-7-O-glucuronide, luteolin-7-O-glucuronide, and apigenin-O-deoxyhexosyl-glucuronide as the main constituents. The phenolic acids found in the hydromethanolic extract included 5-O-caffeolyquinic and protocatechuic acids. Besides these phenolic acids, the hydromethanolic extract also revealed high levels of luteolin-7-O-glucuronide. Overall, the aqueous extracts presented higher phenolic contents than the hydromethanolic extracts in both plants, which could be related with the heat treatment to which infusions were subjected.pt_PT
dc.description.sponsorshipThe authors are grateful to the Foundation for Science and Technology (FCT, Portugal) for financial support through national funds FCT/MCTES to CIMO (UIDB/00690/2020); national funding by FCT, P.I., through the institutional scientific employment program-contract for C. Pereira and L. Barros contracts and M.G. Leichtweis PhD grant (2020.06706.BD).pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationLeichtweis, Maria Gabriela; Pereira, Carla; Ferreira, Isabel C.F.R.; Barros, Lillian (2021). Phenolic profile of Cynara scolymus L. and Silybum marianum (L.) Gaertn. aqueous and hydromethanolic extracts. In 5th International Symposium on Phytochemicals in Medicine and Food (5-ISPMF). Nanchangpt_PT
dc.identifier.urihttp://hdl.handle.net/10198/30624
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherNanchang Universitypt_PT
dc.relationMountain Research Center
dc.relationAllPumpkin – Development of a high-quality pumpkin pulp enriched and preserved by added-value molecules from pumpkin by-products, an integrative and sustainable strategy.
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectArtichokept_PT
dc.subjectResearch Subject Categories::TECHNOLOGY::Chemical engineering::Food technologypt_PT
dc.titlePhenolic profile of Cynara scolymus L. and Silybum marianum (L.) Gaertn. aqueous and hydromethanolic extractspt_PT
dc.typeconference object
dspace.entity.typePublication
oaire.awardNumberUIDB/00690/2020
oaire.awardNumber2020.06706.BD
oaire.awardTitleMountain Research Center
oaire.awardTitleAllPumpkin – Development of a high-quality pumpkin pulp enriched and preserved by added-value molecules from pumpkin by-products, an integrative and sustainable strategy.
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00690%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/POR_NORTE/2020.06706.BD/PT
oaire.citation.conferencePlaceNanchangpt_PT
oaire.citation.endPage385pt_PT
oaire.citation.startPage385pt_PT
oaire.citation.title5th International Symposium on Phytochemicals in Medicine and Food (5-ISPMF)pt_PT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStreamPOR_NORTE
person.familyNameLeichtweis
person.familyNamePereira
person.familyNameFerreira
person.familyNameBarros
person.givenNameMaria Gabriela
person.givenNameCarla
person.givenNameIsabel C.F.R.
person.givenNameLillian
person.identifier1415151
person.identifier144781
person.identifier469085
person.identifier.ciencia-idFF17-0385-78C0
person.identifier.ciencia-idEF10-2739-2B70
person.identifier.ciencia-id9418-CF95-9919
person.identifier.ciencia-id9616-35CB-D001
person.identifier.orcid0000-0002-6015-9043
person.identifier.orcid0000-0003-0093-771X
person.identifier.orcid0000-0003-4910-4882
person.identifier.orcid0000-0002-9050-5189
person.identifier.ridK-1629-2016
person.identifier.ridE-8500-2013
person.identifier.ridJ-3600-2013
person.identifier.scopus-author-id55627876424
person.identifier.scopus-author-id36868826600
person.identifier.scopus-author-id35236343600
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
rcaap.rightsopenAccesspt_PT
rcaap.typeconferenceObjectpt_PT
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