[在有过氧化物酶、酪氨酸酶和血红蛋白存在的水性和水性有机介质中的类黄酮氧化动力学]。

M E Barsukova, A I Tokareva, T S Buslova, L I Malinina, I A Veselova, T N Shekhovtsova
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引用次数: 0

摘要

研究了黄酮类化合物、槲皮素、二氢槲皮素和表儿茶素在不同性质的生物催化剂(辣根过氧化物酶、蘑菇酪氨酸酶和牛血红蛋白)存在下的氧化反应动力学。对氧化反应的动力学参数进行了比较,结果表明过氧化物酶是这些过程中最有效的生物催化剂。在乙醇-乙腈-二甲基亚砜系列中,酶对槲皮素的特异性随溶剂极性的增加而增加。
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[Flavonoid oxidation kinetics in aqueous and aqueous organic media in the presence of peroxidase, tyrosynase, and hemoglobin].

The kinetics of oxidation reactions of flavonoids, quercetin, dihydroquercetin, and epicatechin has been studied in the presence of biocatalysts of different natures: horseradish peroxidase, mushroom tyrosinase, and hemoglobin from bull blood. Comparison of the kinetic parameters of the oxidation reaction showed that peroxidase appeared to be the most effective biocatalyst in these processes. The specificity of the enzyme for quercetin increased with increasing the polarity of the solvent in a series of ethanol–acetonitrile–dimethyl sulfoxide.

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[Nodulation competitiveness of nodule bacteria: Genetic control and adaptive significance]. [Flavonoid oxidation kinetics in aqueous and aqueous organic media in the presence of peroxidase, tyrosynase, and hemoglobin]. [Functionality of Metdi5511gene in Methylobacterium dichloromethanicum DM4]. [Peroxidase activity of octaheme nitrite reductases from bacteria of the Thioalkalivibrio genus]. [Immunity of a leguminous plant infected by nodular bacteria Rhizobium spp. F.]
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