酒精发酵非结构动力学模型及其参数估计  

The unstructed kinetics of high ethanol concentration fermentation by a strain of Saccharomyce cerevisiae and evaluation of the kinetics parameters

作　　者：吕欣[1,2] 董明盛[1] 张晓娟[3] 史仲平[4] 毛忠贵[4] 

机构地区：[1]南京农业大学食品科技学院 [2]江南大学工业生物技术教育部重点实验室,江苏无锡214036 [3]总后勤部军需装备研究所 [4]江南大学工业生物技术教育部重点实验室

出　　处：《西北农林科技大学学报（自然科学版）》2005年第11期78-82,共5页Journal of Northwest A&F University(Natural Science Edition)

基　　金：科技部科技型中小企业技术创新基金无偿资助项目(01C26213200325)南京农业大学青年科技创新基金项目(KJ05017)

摘　　要：对1株产高浓度酒精的酿酒酵母的间歇发酵动力学进行了研究。建立了非结构发酵动力学模型, 以描述高基质(葡萄糖)和高产物(酒精)浓度条件下的酒精间歇发酵过程,采用改进遗传算法对非结构发酵动力学 模型中的参数进行了求取,并将该模型用于预测24．7％初糖浓度下的酒精间歇发酵,预测结果显示该模型可应用 于高基质(葡萄糖)和高产物(酒精)浓度条件下的酒精发酵过程。The batch kinetics of high concentrated ethanol fermentation by a strain of Saccharomyces cerevisae was studied in this paper. The unstructed kinetics model was established to describe the process of high substrate and high product concentration fermentation. The Genetic Algorithm was used to seek best parameters value for good data simulation, the model described the fermentation process well. Then the model was used to predict the batch ethanol fermentation at 24.7% initial glucose concentration with good predicting performace. As a result,the unstructed kinetics model could be used to describe and predict high substrate and high product concentration batch ethanol fermentation process.

关 键 词：高浓度酒精发酵 动力学模型 酿酒酵母 参数估计 

分 类 号：TQ920.1[轻工技术与工程—发酵工程]