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首页> 美国卫生研究院文献>Journal of Food Science and Technology >The growing season impacts the accumulation and composition of flavonoids in grape skins in two-crop-a-year viticulture
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The growing season impacts the accumulation and composition of flavonoids in grape skins in two-crop-a-year viticulture

机译：生长期影响一年两次种植的葡萄中黄酮类化合物在葡萄皮中的积累和组成

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摘要

The influence of growing season (winter vs. summer) on the flavonoid accumulation and composition was studied in the skins of three grape cultivars for two consecutive years under a two-crop-a-year viticulture practice in Southwest China. The total anthocyanin, flavonol and flavan-3-ol contents in winter berry skins were significantly higher than those in summer berry skins for ‘Kyoho’ and ‘Muscat Hamburg’. Reversely, the content of anthocyanin in ‘NW196’ winter berry was lower than summer berry. However, the percentage of diglycosylated, trihydroxylated, methylated, and acylated anthocyanins, trihydroxylated and methylated flavonols, and flavan-3-ol polymers were higher in the summer berry skins than the winter berry skins among all the three grape cultivars. Winter climatic conditions were favorable to flavonoid accumulation for the non native grapes ‘Kyoho’ and ‘Muscat Hamburg’, while the summer climatic conditions were beneficial to anthocyanin accumulation for ‘NW196’ that has 50% genetic background from a local wild grape species Vitis quinquangularis. These seasonal variations of flavonoid accumulations and compositions in the grape skins were primarily contributed by different climatic factors, such as temperature, solar radiation, and rainfall.Electronic supplementary materialThe online version of this article (doi:10.1007/s13197-017-2724-3) contains supplementary material, which is available to authorized users.
机译：在中国西南部一年两次的葡萄栽培实践下，连续三年研究了三个葡萄品种的皮中生长季节（冬季与夏季）对类黄酮积累和组成的影响。 “ Kyoho”和“ Muscat Hamburg”的冬季浆果表皮中的总花色素苷，黄酮醇和黄烷-3-醇含量明显高于夏季浆果表皮中的。相反，'NW196'冬季浆果中的花色苷含量低于夏季浆果。然而，在所有三个葡萄品种中，夏季果皮中二糖基化，三羟基化，甲基化和酰化的花色苷，三羟基化和甲基化的黄酮醇以及黄烷-3-醇聚合物的百分比高于冬季果皮。冬季气候条件有利于非本地葡萄“ Kyoho”和“ Muscat Hamburg”的类黄酮积累，而夏季气候条件有利于“ NW196”的花青素积累，NW196的遗传背景来自当地野生葡萄树葡萄（Vitis quinquangularis）的50％ 。葡萄皮中类黄酮积累和组成的这些季节性变化主要是由不同的气候因素引起的，例如温度，太阳辐射和降雨。电子补充材料本文的在线版本（doi：10.1007 / s13197-017-2724-3） ）包含补充材料，授权用户可以使用。

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