Abstract
The objective of this study is to compare the efficacy of ethanol extracts from different parts of Sophora viciifolia. The content of polyphenols, flavonoids, alkaloids, and antioxidant capacity, antimicrobial activity were investigated, and individual polyphenols and alkaloids were analyzed and quantified by ultra-high performance liquid chromatography (UPLC). The microdilution method was used to determine the antimicrobial activity of extracts from S. viciifolia on six strains. The results for extracts from the different parts (flowers, leaves, and fruit) were compared in varying concentrations to determine whether one extract source is superior to another. Testing verified that extracts from the different parts of S. viciifolia did vary, as expected. For example, extract from the leaves had the best antimicrobial activity against pathogenic Candida albicans, but all extracts had good antimicrobial activity against the six tested strains. These results reveal that the active substances in S. viciifolia are abundant and have good antioxidant and antimicrobial activities, which can provide theoretical support for the subsequent development and utilization of S. viciifolia extracts.
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