208 インナーパワーリング粉砕杉粉末の高試料濃度糖化プロセスの研究 : 木質系バイオエタノール製造における高試料濃度化と糖化率向上に関する研究(循環型廃棄物処理技術(2))

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The effect of mixing on enzymatic saccharification with high solids loading of Japanese cedar powder pulverized by the inner power ring mill was investigated. The enzymatic saccharification examinations with three mixing states as vibration mixing by multitiered mesh structure, propeller mixing and no mixing were carried out on solids concentrations of 10, 25 and 40w/v% using acetic buffer solution of 800ml, a powder pulverized into 20μm in average diameter and an enzyme dosage of 20wt% per solids of powder. The saccharification ratio of vibration mixing achieved 60% for 10% solids concentration and 70% for 40% solids concentration. On the other hand, the saccharification ration of propeller mixing over 25% solids concentration achieved up to 50% that was equivalent to no mixing saccharfication. Therefore, the vibration mixing may allow for high solids loading during large scale processing.
2009-07-08