Compositional Characterization of Different Industrial White and Red Grape Pomaces in Virginia and the Potential Valorization of the Major Components

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dc.contributor.authorJin, Qingen
dc.contributor.authorO’Hair, Joshuaen
dc.contributor.authorStewart, Amanda C.en
dc.contributor.authorO'Keefe, Sean F.en
dc.contributor.authorNeilson, Andrew P.en
dc.contributor.authorKim, Young Tecken
dc.contributor.authorMcGuire, Megan N.en
dc.contributor.authorLee, Andrew H.en
dc.contributor.authorWilder, Geoffreyen
dc.contributor.authorHuang, Haiboen
dc.contributor.departmentFood Science and Technologyen
dc.contributor.departmentSustainable Biomaterialsen
dc.date.accessioned2019-12-20T15:01:48Zen
dc.date.available2019-12-20T15:01:48Zen
dc.date.issued2019-12-11en
dc.date.updated2019-12-20T14:10:20Zen
dc.description.abstractTo better evaluate potential uses for grape pomace (GP) waste, a comprehensive chemical composition analysis of GP in Virginia was conducted. Eight commercial white and red pomace samples (cv. Viognier, Vidal Blanc, Niagara, Petit Manseng, Petit Verdot, Merlot, Cabernet Franc, and Chambourcin) obtained from different wineries in Virginia, USA were used. For extractives, GPs contained 2.89%–4.66% titratable acids, 4.32%–6.60% ash, 4.62%–12.5% lipids with linoleic acid being the predominant (59.0%–70.9%) fatty acid, 10.4–64.8 g total phenolic content (gallic acid equivalents)/kg GP, 2.09–53.3 g glucose/kg GP, 3.79–52.9 g fructose/kg GP, and trace sucrose. As for non-extractives, GPs contained 25.2%–44.5% lignin, 8.04%–12.7% glucan, 4.42%–7.05% xylan, and trace amounts of galactan, arabinan, and mannan (less than 3% in total). Potential usages of these components were further examined to provide information on better valorization of GP. Considering the valuable extractives (e.g., polyphenols and oil) and non-extractives (e.g., lignin), designing a biorefinery process aiming at fully recover and/or utilize these components is of future significance.en
dc.description.versionPublished versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationJin, Q.; O’Hair, J.; Stewart, A.C.; O’Keefe, S.F.; Neilson, A.P.; Kim, Y.-T.; McGuire, M.; Lee, A.; Wilder, G.; Huang, H. Compositional Characterization of Different Industrial White and Red Grape Pomaces in Virginia and the Potential Valorization of the Major Components. Foods 2019, 8, 667.en
dc.identifier.doihttps://doi.org/10.3390/foods8120667en
dc.identifier.urihttp://hdl.handle.net/10919/96158en
dc.language.isoenen
dc.publisherMDPIen
dc.rightsCreative Commons Attribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectgrape pomaceen
dc.subjectchemical compositionen
dc.subjectfatty acidsen
dc.subjectpolyphenolsen
dc.subjectcarbohydratesen
dc.subjectligninen
dc.titleCompositional Characterization of Different Industrial White and Red Grape Pomaces in Virginia and the Potential Valorization of the Major Componentsen
dc.title.serialFoodsen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten

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