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Potential of Red Ginseng Marc for Ethanol Production as a Fermentation Medium

에탄올 발효 배지로서 홍삼박의 활용

  • Kim, Dong Chung (Department of Human Nutrition and Food Science, and International Institute of Bio and Health Science, Chungwoon University) ;
  • In, Man-Jin (Department of Human Nutrition and Food Science, and International Institute of Bio and Health Science, Chungwoon University)
  • Received : 2013.07.29
  • Accepted : 2013.08.30
  • Published : 2013.12.31

Abstract

The potential of the red ginseng marc (RGM) for the production of bio-ethanol using enzymatic hydrolysis and fermentation without any additional nutrients was investigated. Reducing sugar content in RGM treated with Viscozyme and Flavourzyme was 101.1 g/L and was much higher than that (7.2 g/L) in intact RGM. When enzymatically hydrolyzed red ginseng marc (ERGM) was fermented with commercially available dry yeast at $25^{\circ}C$ for 7 days, the final ethanol concentration reached 29.3 g/L with ethanol yield at 0.274 g of ethanol per 1 g of solubilized total sugar. Ethanol concentration and ethanol yield of ERGM were drastically increased over 1000% and 50%, respectively than those of RGM.

홍삼박을 에탄올 발효의 원료로 활용하기 위하여 홍삼박을 탄수화물 분해효소와 단백질분해효소로 처리한 결과 환원당의 함량이 7.2 g/L에서 101.1 g/L로 증가하였다. 홍삼박 효소분해물에 영양성분을 추가하지 않고 시판 효모를 접종하여 $25^{\circ}C$에서 7일간 발효한 결과 에탄올은 29.3 g/L까지 생성되었으며 총당대비수율은 0.274 g/g로 계산되었다. 이는 대조군보다 에탄올 생산량은 1,000% 이상, 수율은 50% 이상 향상된 결과이다.

Keywords

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