Research on Antioxidant Activity of 29 Herbal Medicines from West Yunnan

Abstract

Abstract:

Objective: To evaluate the antioxidant activity of 29 herbal medicines from West Yunnan. Methods: The 29 medicinal
plants were extracted with 75% ethanol and water successively. DPPH assay were used to measure the antioxidant activity in vitro, and
the results were expressed as IC50 values. Results: Nine plants, including Laggera pterodonta, Gaultheria leucocarpa, Geranium
refractum, Anaphalis bulleyana, Tripterygium hypoglaucum, Campylotropis hirtella, Osbeckia opipara, Tithonia diversifolia, and
Scutellaria amoena, had strong antioxidant activity. Among them, the ethanol extract of the underground part of G. refractum showed
significant activity with an IC50 value（4.1±0.1）μg/mL which was better than the IC50 value of positive control-vitamin C. Conclusion:
Nine plants had antioxidant activity and revealed the potential for further study and development with medicinal purpose.

Key words: herbal medicines, antioxidant, DPPH, crude extract

CLC Number:

Zhang Xiaodong, Shen Yi, Liu Ziqi, Xu Wei, Shan Hua, Jiang Bei. Research on Antioxidant Activity of 29 Herbal Medicines from West Yunnan[J]. J4, 2016, 15(2): 1-4.

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