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KMID : 1134820100390101425
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Journal of the Korean Society of Food Science and Nutrition
2010 Volume.39 No. 10 p.1425 ~ p.1432
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Antibacterial and Antioxidant Activities of Solvent Extracts from Different Parts of Hagocho (Prunella vulgaris)
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Seo Jong-Kwon
Kang Min-Jung
Shin Jung-Hye
Lee Soo-Jung
Jeong Hey-Gwang
Sung Nak-Ju
Chung Young-Chul
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Abstract
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This study was designed to investigate the effects of antioxidant and antibacterial activities of water, ethanol and methanol extracts from root, stem and flower stalk of Hagocho (Prunella vulgaris). The solvent extract yields from root were higher than those from stem and flower stalk, and water extract showed the highest extraction yield against ethanol and methanol extracts. The contents of total phenolic and flavonoid in ethanol extract were significantly higher in stem extract compared with those of root and flower stalk. In the case of water and methanol extracts, however, the contents were the highest in flower stalk. The electron donating ability and reducing power in all test groups were significantly increased in a dose-dependent manner, and antioxidant activities were the highest in methanol extract. In extracts from different parts of Hagocho, the antioxidant activity was the highest in flower stalk followed by stem and root. ABTS radical scavenging ability of water and methanol extracts was above 50% at 100 ㎍/mL concentration. Antibacterial activities did not show significant differences depending on parts of Hagocho. However, antibacterial activity of ethanol extract was higher than those of other extracts.
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KEYWORD
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Hagocho (Prunella vulgaris), antibacterial activity, antioxidant activity
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