한빛사 논문
강원대학교
Hyun Young Kila,1, Eun Soo Seonga,1, Bimal Kumar Ghimireb,1, Ill-Min Chungb,1, Soon Sung Kwona, Eun Jeong Goha, Kweon Heoc, Myong Jo Kima, Jung Dae Limd, Dokyoung Leee, Chang Yeon Yua,*
aBioherb Research Institute, Kangwon National University, Chunchon 200-701, South Korea
bDepartment of Applied Life Science, Konkuk University, Seoul 143-701, South Korea
cDivision of Bio-resources Technology, College of Agriculture and Life Science, Kangwon National University, Chuncheon 200-701, South Korea
dDepartment of Herbal Medicine Resource, Kangwon National University, Samcheok 245-711, South Korea
eDepartment of Crop Science, University of Illinois, Urbana, IL 61801, USA
1These authors contributed equally to this work.
*Corresponding author
Abstract
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 RC50 (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.
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