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Study on Optimizing, Pretreatment & Simultaneous Saccharification and Fermentation Process for High-efficiency Bioethanol  

Choi, Gi-Wook (CHANGHAE Institute of Cassava and Ethanol Research CHANGHAE ETHANOL CO., LTD.)
Han, Min-Hee (CHANGHAE Institute of Cassava and Ethanol Research CHANGHAE ETHANOL CO., LTD.)
Kim, Yule (CHANGHAE Institute of Cassava and Ethanol Research CHANGHAE ETHANOL CO., LTD.)
Publication Information
KSBB Journal / v.23, no.3, 2008 , pp. 276-280 More about this Journal
Abstract
In this study, the productivity of bioethanol obtained from various domestic raw materials (barley, brown rice, corn and sweet potato) by simultaneous saccharification and fermentation (SSF) process was estimated. Also, optimal conditions of temperature, time and enzyme concentration in gelatinization and liquefaction process were investigated. As a result, corn showed high ethanol yield of 90.45% and sweet potato had a rapid fermentation time. Productivity of bioethanol increases in accordance with the starch value of raw materials except brown rice. Therefore, it is very important to understand the structure of starch. Further studieson the characteristics of raw materials are necessary to enhance the productivity of bioethanol.
Keywords
bioethanol; simultaneous saccharification & fermentation (SSF);
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