Abstract

With the use of a voltammetric method, we found that humic acids (HAs) of different origin extracted from soils, sapropels, peats, and brown coals exhibit pronounced antioxidant properties. According to the results of a correlation analysis, it was shown that the antioxidant activity of HAs depends on the concentration of phenolic hydroxyls and carboxyl groups in a range of pH 10–5.5. Peat HAs were characterized by a maximum antioxidant activity.

中文翻译：

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各种来源腐植酸中的抗氧化剂

摘要

通过使用伏安法，我们发现从土壤、腐泥、泥炭和褐煤中提取的不同来源的腐植酸 (HA) 具有显着的抗氧化特性。根据相关性分析结果表明，HAs 的抗氧化活性取决于 pH 10-5.5 范围内酚羟基和羧基的浓度。泥炭 HA 的特点是具有最大的抗氧化活性。