Grape pomace contains high amounts of bioactive compounds,mainly polyphenols,with different concentrations depending on several factors:grape variety,vinification procedures,even within the same cultivar variation may...Grape pomace contains high amounts of bioactive compounds,mainly polyphenols,with different concentrations depending on several factors:grape variety,vinification procedures,even within the same cultivar variation may be due to the geographic regions and wine vintage.Therefore,phenolic,antioxidant,macro-and micro-nutritional composition of wine waste(pomace and seed)originating from Lacrima di Morro d’Alba red grape variety and pomace of Verdicchio white variety were evaluated for the first time.LC-MS/MS analysis showed the presence of 32 phenolic compounds.The phenolic profile was different in pomace of both varieties:white grape pomaces showed the predominance of flavan-3-ols,while anthocyanins were predominant in red pomaces.Comparing seeds and pomace of Lacrima di Morro d’Alba,catechin and epicatechin are representative com-pounds in red grape seeds,while malvidin-3-galactoside and petunidin-3-glucoside are the most abundant compounds in pomace of all wineries.Highest TPC and antioxidant activities determined by UV-vis spectro-photometer were observed in seed samples.High dietary fibers,polyunsaturated fatty acids,minerals and protein contents were observed in all samples.Wine byproducts of both grape varieties appeared to be a good source of phenolic and nutritional compounds;therefore,they could be a cheap alternative for phenolics production and development of new functional foods.展开更多
基金funded by GAL“Colli Esini San Vicino”under PIANO DI SVILUPPO LOCALE 2014-2020,BANDO MISURA 19.2.16.2:Attivazione di progetti di innovazione tra imprese e mondo della ricerca e della consulenza nei settori“smart”.
文摘Grape pomace contains high amounts of bioactive compounds,mainly polyphenols,with different concentrations depending on several factors:grape variety,vinification procedures,even within the same cultivar variation may be due to the geographic regions and wine vintage.Therefore,phenolic,antioxidant,macro-and micro-nutritional composition of wine waste(pomace and seed)originating from Lacrima di Morro d’Alba red grape variety and pomace of Verdicchio white variety were evaluated for the first time.LC-MS/MS analysis showed the presence of 32 phenolic compounds.The phenolic profile was different in pomace of both varieties:white grape pomaces showed the predominance of flavan-3-ols,while anthocyanins were predominant in red pomaces.Comparing seeds and pomace of Lacrima di Morro d’Alba,catechin and epicatechin are representative com-pounds in red grape seeds,while malvidin-3-galactoside and petunidin-3-glucoside are the most abundant compounds in pomace of all wineries.Highest TPC and antioxidant activities determined by UV-vis spectro-photometer were observed in seed samples.High dietary fibers,polyunsaturated fatty acids,minerals and protein contents were observed in all samples.Wine byproducts of both grape varieties appeared to be a good source of phenolic and nutritional compounds;therefore,they could be a cheap alternative for phenolics production and development of new functional foods.
