P-27 亜臨界水+酵素糖化によるペーパースラッジからのグルコース生成(ポスターセッション2:技術04,研究発表(ポスター発表))

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The effect of subcritical water pretreatment of paper sludge on glucose production was investigated Paper sludge was hydrolyzed in subcritical water at different temperatures from 180 to 220℃, a constant pressure of 3MPa and different reaction times from 1 to 4 minutes using a flow-type reactor. As a result, small amount of glucose was detected but 5-hydroxymethyl furfural and furfural, which are strong inhibitors of ethanol fermentation, did not exist in aqueous solution. Then the pretreated paper sludge solid was saccharified by cellulase at 35℃, pH4.5 for 4days. The glucose yield increased by 10-20%, comparing with that without subcritical water pretreatment. Judging from the result, subcritical water treatment was effective as the pretreatment of cellulase saccharification.
2011-01-12