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Enterobacter aerogenes를 이용한 crude glycerol 기반의 바이오에탄올 생산
정홍섭(Hongsub Jung),성필제(Pil-Je Seong),고아라(A-Ra Go),이상준(Sang Jun Lee),김승욱(Seung Wook Kim),한성옥(Sung Ok Han),조재훈(Jaehoon Cho),조대행(Dae Haeng Cho),김용환(Yong Hwan Kim),박철환(Chulhwan Park) 한국생물공학회 2011 KSBB Journal Vol.26 No.3
The effects of pH, glycerol concentration and salt on cell growth and ethanol production using Enterobacter aerogenes KCTC 2190 were evaluated in the anaerobic culture condition. In condition of initial pH 5, cell growth and ethanol production were highest. An initial concentration of 10 g/L of pure glycerol gave the highest cell growth and ethanol production. However, in case of over 15 g/L of pure glycerol, they decreased. The cell growth and ethanol production decreased with the increase of salt concentration. When 10 g/L of crude glycerol was used as the carbon source, the cell growth and ethanol production were 1.32 OD600 and 3.95 g/L, respectively, which were about 94.4% and 88.5% compared to those of pure glycerol. These result indicates that the crude glycerol produced in the biodiesel manufacturing process may be useful as a potential carbon source for ethanol production form Enterobacter aerogenes KCTC 2190.
Pichia stipitis를 이용한 리그노셀룰로스계 바이오매스 기반의 바이오에탄올 생산
배양원(Yangwon Bae),성필제(Pil-Je Seong),조대행(Dae Haeng Cho),신수정(Soo-Jeong Shin),김승욱(Seung Wook Kim),한성욱(Sung Ok Han),김용환(Yong Hwan Kim),박철환(Chulhwan Park) 한국생물공학회 2010 KSBB Journal Vol.25 No.6
We investigated the effect of inhibitory compounds derived lignocellulosic hydrolysates on cell growth, sugar consumption and ethanol productivity, and also we intended to identify the potential for ethanol production based on lignocellulosic hydrolysates. Cell growth and ethanol production in the presence of acetate were initiated after 12 hr. Furans showed a longer lag time and phenolics showed a significant effect on strain and ethanol production in comparison to other model compounds. In the case of lignocellulosic hydrolysates, the acetate strongly affected cell growth and ethanol production.