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KMID : 1134820150440121793
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Journal of the Korean Society of Food Science and Nutrition
2015 Volume.44 No. 12 p.1793 ~ p.1798
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Evaluation of Antioxidant and Antimicrobial Activities of Solvent Extracts from Coriolus versicolor
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Han So-Ra
Noh Min-Young
Lee Joo-Ho
Oh Tae-Jin
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Abstract
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Antioxidant activities of various solvent extracts from Coriolus versicolor were investigated for their total polyphenol content, total flavonoid content, 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging activity, and 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) cation radical scavenging activity. C. versicolor extracts were produced by organic solvents such as ethanol, ethyl acetate, and methanol. Total polyphenol and flavonoid contents in the ethanol and ethyl acetate extracts were higher than those in the methanol extract. DPPH radical scavenging activity of methanol extract showed the highest value of 80.3%, which was similar to that of ascorbic acid (85.5%). All extracts showed good (>90.0%) ABTS cation radical scavenging activity. The antimicrobial activities of these extracts from C. versicolor were evaluated against six strains of bacteria using the disc diffusion method. All extracts showed antimicrobial activities against all tested bacteria except Staphylococcus aureus. These results indicate that various extracts from C. versicolor could be useful as natural antioxidant and antimicrobial agents.
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KEYWORD
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ABTS cation radical scavenging activity, Coriolus versicolor, DPPH radical scavenging activity, solvent extraction
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