Ethanol production from cellulose by coupled saccharification/fermentation usingSaccharomyces cerevisiae and cellulase complex fromSclerotiun rolfsii UV-8 mutant
Tóm tắt
Using cellulase/hemicellulase complex ofSclerotium rolfsii UV-8 mutant andSaccharomyces cerevisiae for fermentation, the coupled saccharification/ fermentation (CSF) of 15% AT-rice straw was carried out at 40°C, pH 4.5 for the first 24 h and further incubation was performed at 30°C for 72 h. Increasing the amount of cellulase activity from 3–12 IU FPA/g of substrate resulted in increased yields of ethanol from 1.5–3.6% in 96 h. It has been observed that the coupled system was advantageous over the two stage (separate hydrolysis/fermentation) system as it produced higher amounts of ethanol from cellulose (3.6% as compared to 2.3% ethanol from rice straw).
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Tài liệu tham khảo
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