Pro- and Antioxidant Activity of Three Selected Flavan Type Flavonoids: Catechin, Eriodictyol and Taxifolin.

Pro- and Antioxidant Activity of Three Selected Flavan Type Flavonoids: Catechin, Eriodictyol and Taxifolin.
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三种精选黄烷类黄酮类化合物的促氧化和抗氧化活性:儿茶素、圣草酚和紫杉叶素。

DOI:
10.3390/ijms17121986
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发表时间:
2016-11-26
影响因子:
5.6
通讯作者:
Kubicova L
Kubicova L
中科院分区:
生物学2区
文献类型:
--
作者:
Chobot V;Hadacek F;Bachmann G;Weckwerth W;Kubicova L

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黄烷醇(±)-儿茶素在C环(C3)上有一个OH基,但没有4-酮基,A环和B环之间没有共轭。相关的黄烷酮(+)-圣草酚在C4上具有酮基,但在环C上没有3-OH基团。(+)-Taxifolin,另一种黄烷酮,在C环的C3上具有OH,在C4上具有酮基。脱氧核糖降解测定系统,与过氧化氢和抗坏血酸添加或省略,在变体中进行,其中Fe(III)被添加在与乙二胺四乙酸(EDTA)的复合物。结合差分脉冲伏安法(DVP),具体的氧化还原化学贡献的环A的m-二羟基基团可以探索更具体的除了那些传统的研究O-二羟基基团的环B。
The flavanol (±)-catechin shows an OH group but no 4-keto group on ring C (C3), and no conjugation between ring A and B. The related flavanone (+)-eriodictyol has a keto group on C4 but no 3-OH group on ring C. (+)-Taxifolin, another flavanone, has an OH on C3 and a keto group on C4 of the C ring. Deoxyribose degradation assay systems, with hydrogen peroxide and ascorbic acid either added or omitted, were performed in variants in which Fe(III) was added in a complex with ethylenediaminetetraacetic acid (EDTA). In combination with differential pulse voltammetry (DVP), the specific redox-chemical contributions of the ring A m-dihydroxyl groups could be explored more specifically in addition to those of the traditionally investigated o-dihydroxyl groups of ring B.
DOI: 10.1021/jf902395k
发表时间: 2010-02-24
影响因子: 6.1
作者:
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