Balsamic vinegar of Modena is a typical product made from grape must by traditional prodn. method with extensive aging. The presence of biol. active polyphenol components in the vinegar was studied using a modified extn. method. Several extn. procedures and solvents (Et acetate, 4-methylpentan-2-one, isoamyl alc., n-butanol) were tested. The total phenols in exts. were detd. with the Folin-Ciocalteu reagent and expressed as gallic acid contents. The phenolic substances were then fractionated on C18 solid-phase extn. cartridges into neutral and acidic compds. and expressed as gallic acid and (+)-catechin contents, resp.
Estrazione e frazionamento di sostanze fenoliche in aceti balsamici. (Extraction and fractionation of polyphenol substances in Balsamic vinegars) / Plessi, Maria; Bertelli, Davide; F., Miglietta. - In: ATTI DELLA SOCIETÀ DEI NATURALISTI E MATEMATICI DI MODENA. - ISSN 0365-7027. - STAMPA. - 132:(2001), pp. 101-110.
Estrazione e frazionamento di sostanze fenoliche in aceti balsamici. (Extraction and fractionation of polyphenol substances in Balsamic vinegars).
PLESSI, Maria;BERTELLI, Davide;
2001
Abstract
Balsamic vinegar of Modena is a typical product made from grape must by traditional prodn. method with extensive aging. The presence of biol. active polyphenol components in the vinegar was studied using a modified extn. method. Several extn. procedures and solvents (Et acetate, 4-methylpentan-2-one, isoamyl alc., n-butanol) were tested. The total phenols in exts. were detd. with the Folin-Ciocalteu reagent and expressed as gallic acid contents. The phenolic substances were then fractionated on C18 solid-phase extn. cartridges into neutral and acidic compds. and expressed as gallic acid and (+)-catechin contents, resp.
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