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Distribution of enzymatic and alkaline oxidative activities of phenolic compounds in plants
Phytochemistry ( IF 3.2 ) Pub Date : 2020-11-01 , DOI: 10.1016/j.phytochem.2020.112501
Jorma Kim 1 , Maija Pälijärvi 1 , Maarit Karonen 1 , Juha-Pekka Salminen 1
Affiliation  

In this study, we screened 287 plant tissue samples from 175 plant species for their phenolic profiles. The samples were oxidized enzymatically in planta or at high pH in vitro to determine how these two oxidative conditions would alter the initial polyphenol profiles of the plant. Compounds that contained a pyrogallol or dihydroxyphenethyl group were highly active at pH 10. Enzymatic oxidation favored compounds that contained a catechol group, whereas compounds containing a pyrogallol group or monohydroxysubstituted phenolic moieties at most were oxidized less frequently. This study gives a broad overview of the distribution and alkaline oxidative activities of water-soluble phenolic compounds in plants as well as the enzymatic oxidative activities of various plant tissues.

中文翻译:

植物中酚类化合物的酶促和碱性氧化活性分布

在这项研究中,我们筛选了来自 175 个植物物种的 287 个植物组织样本的酚类成分。样品在植物体内或在体外在高 pH 值下进行酶促氧化,以确定这两种氧化条件将如何改变植物的初始多酚谱。含有连苯三酚或二羟基苯乙基基团的化合物在 pH 值为 10 时具有高活性。酶促氧化有利于含有邻苯二酚基团的化合物,而含有连苯三酚基团或最多单羟基取代的酚部分的化合物被氧化的频率较低。本研究广泛概述了植物中水溶性酚类化合物的分布和碱性氧化活性,以及​​各种植物组织的酶促氧化活性。
更新日期:2020-11-01
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