Antioxidant and antimicrobial activities of crude sorghum extract

Here, we report the antioxidant and antimicrobial activities of sorghum ( Sorghum bicolor Moench) extracts prepared from 25 cultivars from South Korea. Four cultivars of sorghum were extracted with methanol, then further fractioned with n-hexane, ethyl acetate, n-butanol, and water. The RC 50 (the c...

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Bibliographic Details
Published in:Food chemistry 2009-08, Vol.115 (4), p.1234-1239
Main Authors: Kil, Hyun Young, Seong, Eun Soo, Ghimire, Bimal Kumar, Chung, Ill-Min, Kwon, Soon Sung, Goh, Eun Jeong, Heo, Kweon, Kim, Myong Jo, Lim, Jung Dae, Lee, Dokyoung, Yu, Chang Yeon
Format: Article
Language:English
Subjects:
Antimicrobial activity
antimicrobial properties
Antioxidant activity
Biological and medical sciences
Cereal and baking product industries
cultivars
extraction
Food industries
Food microbiology
food quality
free radical scavengers
Fundamental and applied biological sciences. Psychology
grain sorghum
MeOH extracts
methanol
methanol extracts
plant extracts
reduction
Sorghum
Sorghum bicolor
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Summary:Here, we report the antioxidant and antimicrobial activities of sorghum ( Sorghum bicolor Moench) extracts prepared from 25 cultivars from South Korea. Four cultivars of sorghum were extracted with methanol, then further fractioned with n-hexane, ethyl acetate, n-butanol, and water. The RC 50 (the concentration of antioxidant required to achieve absorbance equal to 50% that of a control containing no antioxidants) value of the DPPH method and reducing power showed higher efficiency in the BuOH layer of all selected cultivars except Neulsusu. The various fractions were then examined for antimicrobial activity by a serial two fold dilution assays using the paper disc method. The methanol extracts showed higher levels of antimicrobial activity than the other fractions. Our results indicate that sorghum extracts could be used as a source of antioxidant and antimicrobial ingredients in the food industry.
ISSN:0308-8146
1873-7072
DOI:10.1016/j.foodchem.2009.01.032