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KMID : 0616120100410020130
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Korean Journal of Pharmacognosy
2010 Volume.41 No. 2 p.130 ~ p.135
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Antioxidant and a-glucosidase Inhibition Activity from Different Extracts of Zanthoxylum schnifolium Fruits
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Oh Sang-Mi
Han Woong
Wang Myeong-Hyeon
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Abstract
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This study was performed to the activity of antioxidant and anti-diabetic from Zanthoxylum schnifolium fruit. The Zanthoxylum schnifolium fruits were extracted with water, 100% methanol, 100% ethanol, 70% methanol and 70% ethanol. The activities of each extracts were measured by antioxidant tests, such as total phenolic contents, total flavonoid contents, hydroxyl radical activity, DPPH radical scavenging activity, reducing power and a-glucosidase inhibition activity assay. The water extract represented the highest activity in the antioxidants properties in vitro, including hydroxyl radical activity, DPPH radical scavenging activity, reducing power. Furthermore, water extract also showed significantly high total phenolic contents but the 100% methanol extract showed high total flavonoid contents estimated as 196.48 mg/mg. The IC50 values for a-glucosidase inhibition activity of the 100% ethanol and 100% methanol extracts were 275.66 mg/mg and 261.44 mg/mg. Our results indicated that the Zanthoxylum schnifolium fruit expected to be useful as antioxidants.
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KEYWORD
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Anti-diabetic, antioxidant, total flavonoid contents, total phenolic contents, Zanthoxylum schnifolium
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