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http://dx.doi.org/10.3746/jkfn.2015.44.8.1144

Antioxidant Activities and Antimicrobial Effects of Solvent Extracts from Lentinus edodes  

Han, So-Ra (Department of Pharmaceutical Engineering, SunMoon University)
Kim, Mi-Jin (Department of Pharmaceutical Engineering, SunMoon University)
Oh, Tae-Jin (Department of Pharmaceutical Engineering, SunMoon University)
Publication Information
Journal of the Korean Society of Food Science and Nutrition / v.44, no.8, 2015 , pp. 1144-1149 More about this Journal
Abstract
The aim of this study was to investigate the antioxidant and antimicrobial activities of various solvent (acetone, ethyl acetate, and ethanol) extracts from Lentinus edodes. The antioxidant activities were evaluated by measuring total polyphenol and flavonoid contents, 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity, and 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) radical scavenging activity. Total polyphenol content and ABTS radical scavenging activity were highest in ethanol extract. ABTS radical scavenging activity of ethanol extract showed the highest value (98.5%), which was similar to that of ascorbic acid (95.7%). The ethyl acetate extract from Lentinus edodes showed relatively high total flavonoid content and DPPH radical scavenging activity. Negative correlations were found between total polyphenol contents and DPPH radical scavenging activities in Lentinus edodes extracts. Antimicrobial activities of the extracts were determined against Bacillus subtilis, Staphylococcus aureus, Micrococcus luteus, Escherichia coli, Pseudomonas aeruginosa, and Enterobacter cloacae by the disc diffusion method. The acetone and ethanol extracts showed moderate antimicrobial activities against almost all tested microorganisms except E. coli and S. aureus, respectively. The ethyl acetate extract showed a significant growth inhibition effect against E. coli, Ent. cloacae, and B. subtilis.
Keywords
ABTS; antimicrobial effect; antioxidant activity; DPPH; Lentinus edodes;
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Times Cited By KSCI : 11  (Citation Analysis)
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