食品科学

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核桃相关多酚对α-淀粉酶的作用研究进展

陆 秋,陈朝银,赵声兰   

  1. 1.昆明理工大学生命科学与技术学院,云南 昆明 650500;2.云南中医学院,云南 昆明 650500
  • 出版日期:2014-10-15 发布日期:2014-10-17

Progress in Understanding of the Interaction between Walnut Polyphenols and Alpha-Amylase

LU Qiu, CHEN Chao-yin, ZHAO Sheng-lan   

  1. 1. Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, China;
    2. Yunnan University of Chinese Traditional Medicine, Kunming 650500, China
  • Online:2014-10-15 Published:2014-10-17

摘要:

核桃含有没食子酸、咖啡酸、槲皮素等丰富的多酚。这些多酚有抗氧化、抗炎、抗肿瘤等多种生物学活性,其中香草酸、绿原酸、没食子酸、槲皮素、芦丁等许多组分对α-淀粉酶的抑制率为2%~70%,有的还具有协同作用。多酚的羟基化有利于提高其对α-淀粉酶的抑制活性,甲基化、甲氧基化会降低其抑制活性,糖基化降低抑制活性的效果则取决于糖基的共轭位点及其类型。

关键词: 核桃相关多酚, &alpha, -淀粉酶, 相互作用, 构效关系

Abstract:

Walnut kernels contain abundant polyphenols such as gallic acid, caffeic acid, and quercetin. These polyphenols
have anti-oxidant, anti-inflammatory, anti-tumor, and other biological activities. Some phenolic compounds including
vanillic acid, chlorogenic acid, gallic acid, quercetin, and rutin individually inhibit α-amylase activity by 2%–70% or exert
a synergistic inhibitory effect. The activity of α-amylase is enhanced by polyphenols through hydroxylation but inhibited
through methylation or methoxylation. The inhibitory effect of glycosylation on α-amylase depends on conjugation sites and
type of sugar moieties.

Key words: walnut polyphenols, α-amylase, interaction, structure-activity relationship

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