Repository logo
 
Publication

Phenolic composition and antioxidant potential of Vitis vinífera leaves of six varieties harvested in Northeast of Portugal

2013Conference paper Open access
Simple item page
dc.contributor.authorRamalhosa, Elsa
dc.contributor.authorValentão, Patrícia
dc.contributor.authorAndrade, Paula B.
dc.contributor.authorAndrade, João Verdial
dc.contributor.authorBento, Albino
dc.contributor.authorPereira, J.A.
dc.date.accessioned2013-08-20T10:37:33Z
dc.date.available2013-08-20T10:37:33Z
dc.date.issued2013
dc.description.abstractIn the present work it was intended to study the phenolic composition and antioxidant potential of Vitis vinifera leaves of six varieties: white – Carrega Branco, Chardonnay and Viosinho, and red – Bastardo, Tinta Gorda and Touriga Francesa. All varieties were harvested in the NE of Portugal (Trás-os-Montes region). The phenolic composition of aqueous extracts was determined by HPLC-DAD and the antioxidant potential was evaluated by the total reducing capacity (TRC), reducing power, DPPH radical scavenging and hydroxyl radical-scavenging activity assays. Six phenolic compounds were detected, namely: trans-caffeoyltartaric acid, trans-coumaroyltartaric acid, myricetin-3-O-glucoside, quercetin-3-O-glucoside, quercetin-3-O-galactoside and kaempferol-3-O-glucoside. The sum of these compounds varied between 23918 and 36859 mg/kg extract (dry basis) for the white varieties and 29706 and 43325 mg/kg extract (dry basis) for the red varieties. Regarding TRC, the white and red varieties displayed the following antioxidant capacities: 203 to 550 and 222 to 360 mg GAE/g extract, respectively. Some differences among the six varieties were observed in what concerns the reducing power and DPPH radical scavenging capacity. The highest values of reducing power were observed for Chardonnay (white) and Touriga Francesa (red) varieties. On contrary, the highest DPPH radical scavenging capacities were observed for the Viosinho (white) and Tinta Gorda (red) varieties. All extracts presented hydroxyl radical scavenging activity, being the Carrega Branco (white) variety the one that presented the highest potential.por
dc.identifier.citationRamalhosa, Elsa; Valentão, Patrícia; Andrade, Paula; Verdial, João; Bento, Albino; Pereira, José Alberto (2013). Phenolic composition and antioxidant potential of Vitis vinífera leaves of six varieties harvested in Northeast of Portugal. In I.C. FaBE 2013 – International Conference on Food and Biosystems Engineering. Vol. 2. p. 169-176. ISBN 978-960-9510-11-0por
dc.identifier.isbn978-960-9510-11-0
dc.identifier.urihttp://hdl.handle.net/10198/8603
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherFaBE-Labpor
dc.subjectVitis vinifera leavespor
dc.subjectVarietiespor
dc.subjectPhenolic compositionpor
dc.subjectAntioxidant activitypor
dc.titlePhenolic composition and antioxidant potential of Vitis vinífera leaves of six varieties harvested in Northeast of Portugalpor
dc.typeconference paper
dspace.entity.typePublication
oaire.citation.conferencePlaceIlha de Skiathos (Grécia)por
oaire.citation.endPage176por
oaire.citation.startPage169por
oaire.citation.titleI.C. FaBE 2013 – International Conference on Food and Biosystems Engineeringpor
oaire.citation.volume1por
person.familyNameRamalhosa
person.familyNameAndrade
person.familyNameBento
person.familyNamePereira
person.givenNameElsa
person.givenNameJoão Verdial
person.givenNameAlbino
person.givenNameJosé Alberto
person.identifier.ciencia-id1A1D-FC05-A05D
person.identifier.ciencia-idD516-325A-9AD7
person.identifier.ciencia-id611F-80B2-A7C1
person.identifier.orcid0000-0003-2503-9705
person.identifier.orcid0000-0002-5809-413X
person.identifier.orcid0000-0001-5215-785X
person.identifier.orcid0000-0002-2260-0600
person.identifier.ridN-9706-2016
person.identifier.ridL-6798-2014
person.identifier.scopus-author-id6602978189
person.identifier.scopus-author-id55210790800
person.identifier.scopus-author-id35247694000
person.identifier.scopus-author-id57204366348
rcaap.rightsopenAccesspor
rcaap.typeconferenceObjectpor
relation.isAuthorOfPublicationd74be6c0-1703-4f77-bd81-e289ec981ee3
relation.isAuthorOfPublication8da5730a-fd13-4d9e-92a9-097b8156a42e
relation.isAuthorOfPublication233115be-9d46-49d0-8b7d-2d64406d64a0
relation.isAuthorOfPublication7932162e-a2da-4913-b00d-17babbe51857
relation.isAuthorOfPublication.latestForDiscoveryd74be6c0-1703-4f77-bd81-e289ec981ee3

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
17 Artigo FaBE Folhas videira.pdf
Size:
4.12 MB
Format:
Adobe Portable Document Format
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

CIMO - Artigos em Proceedings Não Indexados à WoS/Scopus