earticle

영어

The biological production of fuels from renewable sources has been regarded as a feasible solution to the energy and environmental problems in the near future. Carbohydrates are the most abundant raw material for bioethanol production, although it may bring about raising the price of grains and simple sugars. ‘Ju-Bak’ which is the brewery slurry waste from Korean rice wine and other Korean traditional alcohol beverage, is desirable cost effective substrate for ethanol fermentation.In this study, we have investigated methods to make ethanol from raw materials such as discarded ju-bak and other starchy waste by simultaneous saccharification and fermentation(SSF). When we conducted the saccharification and fermentation with 50% Ju-Bak and 0.4% raw starch saccharifying enzyme, 13.5%(v/v) of the total alcohol content was attained at 84hr of fermentation in 5KL reactor. The results provide practical examples and give a cost effective industrial substantiation of ethanol production. This work was supported by the New &Renewable Energy of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant funded by the Korea government Ministry of Knowledge Economy (No. 2010T100100530).