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Title	Physico-Chemical Characterization Of Some Sources Of Grape Marc From Pietroasa Vineyard
ID_Doc	18125
Authors	Frincu, M; Dumitrache, C; Petre, AC; Mot, A; Teodorescu, RI; Barbulescu, DI; Tudor, V; Matei, F
Title	Physico-Chemical Characterization Of Some Sources Of Grape Marc From Pietroasa Vineyard
Year	2023
Published	Agrolife Scientific Journal, 12, 1
Abstract	Grape marc or "Grape pomace" is a by-product resulting from wine production processes, consisting in seeds, skins and stalks. It can be a valuable source of bioactive substances such as polyphenols, antioxidants, proteins, carbohydrates. The physico-chemical properties of grape pomace can vary depending on factors such as grape cultivar, winemaking process, and storage conditions. The purpose of this study is to determine the physico-chemical properties of different sources of grape pomace (Busuioaca de Bohotin, Merlot, Burgund Mare, Feteasca Neagra, Tamaioasa Romaneasca and Riesling Italian cultivar). Results obtained in present paper showed that the samples of grape pomace have shown high values for compounds of interest, such as protein (from 11.01% for the Busuioaca de Bohotin grape cultivar to 14.80% for Feteasca Neagra), carbohydrates (from 4.32 g% Merlot to 21.56 g% for the Pinot Noir), the amount of polyphenols (from 15.81 mg GAE/g DM on Busuioaca de Bohotin to 27.41 mg GAE/g DM on Feteasca Neagra), and antioxidant activity (from 24.90 mg Trolox equivalent/g DM on Italian Riesling to 33.42 mg Trolox equivalent/g DM on Feteasca Neagra).
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