Method for obtaining grape tannin, resulting tannin and uses
    3.
    发明授权
    Method for obtaining grape tannin, resulting tannin and uses 失效
    获得葡萄单宁的方法,得到单宁和用途

    公开(公告)号:US06479081B2

    公开(公告)日:2002-11-12

    申请号:US09582699

    申请日:2000-09-20

    申请人: Marc Feries

    发明人: Marc Feries

    IPC分类号: A61K3578

    摘要: The invention concerns a method for obtaining grape pomace and/or seed tannin, comprising steps which consist in: (a) from fresh black or white grapes pomace and/or seed, carrying out a solid-liquid extraction of raw tannin fraction in an aqueous solvent; (b) eliminating the first solvent from the resulting extract to obtain a concentrate of the raw tannin fraction; and (c) purifying the raw tannin fraction to obtain said tannin: The method is characterised in that in step (a) sulphite water (H2O+SO2) is used as solvent, and in step (c) the raw tannin fraction is purified by selectively adsorbing the tannin polyphenol compounds on resin and by subsequent filtering. The invention also concerns the resulting tannin and its uses in particular as endogenous tannin in wine.

    摘要翻译: 本发明涉及一种获得葡萄果渣和/或种子单宁的方法,其包括以下步骤:(a)从新鲜的黑葡萄或白葡萄果渣和/或种子中进行固体 - 液体萃取生的单宁馏分的水溶液 溶剂; (b)从所得提取物中除去第一溶剂,得到原料单宁馏分的浓缩物; 该方法的特征在于,在步骤(a)中,使用亚硫酸盐水(H 2 O + SO 2)作为溶剂,在步骤(c)中,将原料单宁馏分通过 选择性地将树脂上的单宁多酚化合物吸附并随后过滤。 本发明还涉及所得单宁及其用途,特别是葡萄酒中的内源性单宁。