秸秆固态发酵酒精过程中湿度变化的研究  

Variations of the humidity in the process of solid-state fermentation of corn stalk for ethanol

作　　者：苏东海[1] 石坚[1] 刘萍[1] 孙君社[1] 

机构地区：[1]中国农业大学食品科学与营养工程学院,北京100083

出　　处：《农业工程学报》2005年第3期189-191,共3页Transactions of the Chinese Society of Agricultural Engineering

基　　金：国家自然科学基金"秸秆固态发酵酒精的动力学研究"(29976045)

摘　　要：研究了在转轴式反应器中以秸秆为原料,接种康氏木霉TR6(Trichodermakoningii)和耐高温酵母CB2(saccharomycescerevisiae)同步固态发酵酒精的过程中,底物湿度对生物量、纤维素酶活和酒精产量的影响。结果显示:产纤维素酶的最适底物湿度和产酒精的最适底物湿度并不一致;试验研究得到了发酵温度对底物湿度变化的影响最大,通气速率影响次之,菌体呼吸强度的影响最小。This paper mainly studies the relationships between biomass/activity of cellulase/yield of etnanol and the changes of substrate humidity during the solid-state cultivation for ethanol production with corn stover by Trichoderma koningii TR6 and saccharomyces cerevisiae CB2. The result indicates the inconsistence of optimum substrate humidity for producing cellulase with that for producing ethanol. The result of this experiment shows the substrate humidity is most influenced by fermenting temperature, less influenced by aeration, and least influenced by carbon dioxide producing rate(CPR).

关 键 词：秸秆 湿度 固态发酵 生物反应器 

分 类 号：TS262.2[轻工技术与工程—发酵工程]