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http://dx.doi.org/10.3746/jkfn.2008.37.4.405

Antioxidant Activity and Inhibition Activity against α-Amylase and α-Glucosidase of Viola mandshurica Extracts  

Lee, Bo-Bae (Dept. of Food Science and Biotechnology, Kyungnam University)
Park, Soon-Rye (Dept. of Food Science and Biotechnology, Kyungnam University)
Han, Chang-Suk (Laboratory of Herbal Medicine, Daehandang Herb Clinic)
Han, Dong-Youl (Laboratory of Herbal Medicine, Daehandang Herb Clinic)
Park, Eun-Ju (Dept. of Food and Nutrition, Kyungnam University)
Park, Hae-Ryong (Dept. of Food Science and Biotechnology, Kyungnam University)
Lee, Seung-Cheol (Dept. of Food Science and Biotechnology, Kyungnam University)
Publication Information
Journal of the Korean Society of Food Science and Nutrition / v.37, no.4, 2008 , pp. 405-409 More about this Journal
Abstract
This study was performed to investigate the physiological activities of Viola mandshurica. Antioxidant activity was evaluated by measuring total phenolic contents, reducing power, 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging activity, 2,2'-azino-di-2-ethyl-benzthiazoline sulphonate (ABTS) radical scavenging activity while anti-diabetic activity was measured by inhibition activities on ${\alpha}$-amylase and ${\alpha}$-glucosidase. V. mandshurica extracts were prepared by extracting with four different solvents (methanol, ethanol, acetone, and water). The methanol extract showed the highest total phenol content (34.49 mg/g gallic acid equivalents) among the extracts. The water extract showed the highest reducing power (0.454) at the concentration of $1,000{\mu}g$/mL. The acetone extract showed the most potent radical scavenging activity. DPPH and ABTS radical scavenging activity of the acetone extract at the concentration of $1,000{\mu}g$/mL were 21.13% and 43.53%, respectively. The inhibitory activity of acetone extracts against ${\alpha}$-amylase and ${\alpha}$-glucosidase showed more than 100% at the concentration of $1,000{\mu}g$/mL. The results indicate that V. mandshurica might have potential antioxidant and anti-diabetic activities.
Keywords
Viola mandshurica; antioxidant; ${\alpha}$-amylase; ${\alpha}$-glucosidase;
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Times Cited By KSCI : 11  (Citation Analysis)
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