An analytical survey of the polyphenols of seeds of varieties of grape (Vitis vinifera) cultivated in Greece:: Implications for exploitation as a source of value-added phytochemicals
An analytical survey of the polyphenols of seeds of varieties of grape (Vitis vinifera) cultivated in Greece:: Implications for exploitation as a source of value-added phytochemicals
复制标题
DOI：
10.1002/pca.804
复制
发表时间：
2005-01-01
影响因子：
3.3
通讯作者：
Kefalas, P
中科院分区：
文献类型：
--
作者：
Guendez, R;Kallithraka, S;Kefalas, P
从12个白色和25个红色的国际和希腊本土葡萄品种（葡萄属vinifera）的种子样品进行了筛选，其多酚成分。测定的多酚主要是低分子量的，包括没食子酸、儿茶素、表儿茶素、表儿茶素没食子酸酯、表没食子儿茶素、表没食子儿茶素没食子酸酯和原花青素B-1和B-2。白色和红色品种的总含量平均值（分别为376和388 mg/100 g种子）非常相似。比较结果，观察到的个人多酚含量与种子从红色品种，在一般情况下，稍微丰富。白色和红色品种中主要的黄烷醇单体是儿茶素（分别占总含量的50.5%和49.3%），而没食子酸和表没食子儿茶素分别是含量最低的成分。所获得的数据进行了讨论方面的开发葡萄籽作为一种低成本的来源，增值植物化学物质。版权所有（C）2005约翰威利父子有限公司。
Seed samples from 12 white and 25 red international and Hellenic native grape varieties (Vitis vinifera) were screened for their polyphenolic composition. The polyphenols determined were mainly of low molecular weight, including gallic acid, catechin, epicatechin, epicatechin gallate, epigallocatechin, epigallocatechin gallate and the procyanidins B-1 and B-2. Average values of total content for white and red varieties (376 and 388 mg/100 g seeds, respectively) were very similar. Comparable results were observed with respect to the individual polyphenol content with seeds from red varieties being, in general, slightly richer. The predominant flavanol monomer in white and red varieties was catechin (which accounted for 50.5 and 49.3%, respectively, of the total content), whilst gallic acid and epigallocatechin were the constituents showing the lowest content, respectively. The data obtained are discussed with regard to the exploitation of grape seeds as a low-cost source of value-added phytochemicals. Copyright (C) 2005 John Wiley Sons, Ltd.