Effects of pH on antioxidant and antimicrobial properties of tea saponins
作者： Yan Li , Yumin Du , Chang Zou
DOI: 10.1007/S00217-009-1014-3
关键词:
摘要: In order to study the effects of environmental conditions, antioxidant and antimicrobial activities tea saponins (TS) in different pH values were evaluated. The activity was examined by reducing power, superoxidant radical scavenging activity, metal chelating so on. Antimicrobial investigated using gram-negative, gram-positive bacterial fungi. vitro exhibited dependency, increased with increasing concentration extract. When 8.0, TSs showed best activities, while reversal result found measurement. At 8.0 2.0 mg/mL, scavenged 90.5% superoxide radical. 4.8, minimum inhibitory TS lower than 0.00625 % (w/v). results indicate that can be an ideal antioxidant, its depend on values.
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