x` Pattern recognition of three Vitis vinifera L. red grapes varieties based on anthocyanin and flavonol profiles, with correlations between their biosynthesis pathways
x` Pattern recognition of three Vitis vinifera L. red grapes varieties based on anthocyanin and flavonol profiles, with correlations between their biosynthesis pathways
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DOI：
10.1016/j.foodchem.2011.06.006
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发表时间：
2012-01-01
期刊：
影响因子：
8.8
通讯作者：
Simal-Gandara, J.
中科院分区：
文献类型：
--
作者：
Figueiredo-Gonzalez, M.;Martinez-Carballo, E.;Simal-Gandara, J.
研究了三种红葡萄品种中花青素和黄酮醇的含量，并利用它们的多酚特征作为指纹图谱。黑葡萄浆果皮的特点是存在高含量的马柳苷和芍药苷-3- o -葡萄糖苷；Mouraton葡萄，由于存在高含量的牵牛花苷-和飞燕草苷-3- o -葡萄糖苷；和Brancellao葡萄，由于存在高含量的花青素-3- o -葡萄糖苷。发现的黄酮醇主要有槲皮素、杨梅素、山奈酚、树黄素、异鼠李素和紫丁香素的3- o -糖苷。利用聚类分析和主成分分析，可以通过异鼠李素-3- o -葡萄糖苷和紫丁香素-3- o -葡萄糖苷的含量，以及它们与莫拉顿的杨梅素缀合物的含量来表征格兰尼格罗。黄酮醇谱不能提供品种指纹图谱。通过逐步判别分析，找出葡萄品种所含的多酚类化合物。最后，比较了红葡萄花青素和黄酮醇的生物合成特征，结果证实黄酮醇的生物合成与花青素的生物合成密切相关。(C) 2011 Elsevier Ltd.版权所有。
The presence of anthocyanins and flavonols in three selected red grape varieties was investigated, in order to use their polyphenolic characterisation as a fingerprint. Berry skins of Gran Negro grapes were characterised by the presence of high content of malvidin- and peonidin-3-O-glucoside; Mouraton grapes, by the presence of high content of petunidin- and delphinidin-3-O-glucoside; and Brancellao grapes, by the presence of high content of cyanidin-3-O-glucoside. The main flavonols found included the 3-O-glucosides of quercetin, myricetin, kaempferol, laricitrin, isorhamnetin and syringetin. Using cluster analysis and principal components analysis, Gran Negro could be characterised by their content of isorhamnetin-3-O-glucoside and syringetin-3-O-glucoside and, along with Mouraton, by their myricetin conjugates. Flavonol profile could not provide a fingerprint of Brancellao variety. Stepwise discriminant analysis was performed in order to find the polyphenolic compounds, which characterised the selected grape varieties. Finally, anthocyanin and flavonol profiles in red grapes were compared and results confirmed that biosynthesis of flavonols is closely related to that of anthocyanins. (C) 2011 Elsevier Ltd. All rights reserved.