木块填料对高浓度乙醇连续发酵过程中振荡行为的弱化机制

作     者：陈令伟 葛旭萌 赵心清 陈丽杰 白凤武 CHEN Lingwei;GE Xumeng;ZHAO Xinqing;CHEN Lijie;BAI Fengwu

作者机构：大连理工大学生物科学与工程系辽宁大连116023 

出 版 物：《化工学报》 (CIESC Journal)

年 卷 期：2007年第58卷第10期

页      面：2624-2628页

核心收录：

学科分类：081703[工学-生物化工] 08[工学] 0817[工学-化学工程与技术] 0836[工学-生物工程] 082203[工学-发酵工程] 0822[工学-轻工技术与工程] 

基　　金：国家自然科学基金项目(20576017)~~ 

主　　题：乙醇连续发酵 高浓度 振荡 填料 弱化 

摘      要：Preliminary research indicated that oscillations of residual glucose, ethanol and biomass were effectively attenuated after the tubular bioreactors were packed with wood chips, and the corresponding mechanism was speculated to be due to cell immobilization, micro-environmental change, and change in dilution *** this work, the change in dilution rate was excluded from the main reason for the oscillation *** the comparison with the performance of the tubular bioreactors packed with polyurethane particles, Raschig rings and glass beads, it was found not only high biomass concentration resulted from cell immobilization, but also most importantly, the high yeast cell viability achieved in the system packing with wood chips effectively attenuated the *** investigation revealed that the ethanol tolerance of yeast cells in the wood chip packing system was improved compared with that in non-packed system, which might further contribute to the oscillation attenuation.