乙醇浓醪发酵技术研究进展  

Research progress of high-concentration mash ethanol fermentation techniques

作　　者：张强[1] 韩德明[1] 李明堂[1] 

机构地区：[1]长春理工大学生命科学技术学院,吉林长春130022

出　　处：《化工进展》2014年第3期724-729,共6页Chemical Industry and Engineering Progress

基　　金：吉林省科技发展重点项目(20120411);吉林省教育厅科学技术研究项目([2014]第34号)

摘　　要：乙醇浓醪发酵具有高细胞密度、高产物浓度和高生产速率等特点,是乙醇工业的发展目标和方向。采用乙醇浓醪发酵技术,具有节约工艺用水、提高设备利用率、降低能耗等优势,是提高乙醇发酵工业效益的重要途径。研究乙醇浓醪发酵具有十分重要的现实意义。本文综述了乙醇浓醪发酵技术研究进展,介绍了乙醇浓醪发酵定义、优势以及影响乙醇浓醪发酵的因素。指出降低发酵醪液黏度、筛选高耐性酿酒酵母、改变发酵工艺模式、添加适宜酶制剂以及营养物质是实现乙醇浓醪发酵技术的主要途径,其中筛选高耐性的酿酒酵母是实现乙醇浓醪发酵技术的关键。High-concentration mash fermentation has such characteristics as high cell density,high product concentration and high production rates. So it is the future aim of ethanol industry. High-concentration mash ethanol fermentation techniques have the advantages of saving process water,improving equipment utilization,and reducing energy consumption. So high-concentration mash ethanol fermentation techniques are an important way of improving ethanol production efficiency. Research on high-concentration mash ethanol fermentation techniques is very important in practical application. This paper reviews research progress of high-concentration mash ethanol fermentation techniques. The definition,advantages and influencing factors of high-concentration mash ethanol fermentation are introduced. Lowering the viscosity of fermentation mash,screening high-tolerance ethanol yeast,changing fermentation process model and adding appropriate enzymes and nutrients are important methods of achieving high-concentration mash ethanol fermentation. Among them,screening high-tolerance ethanol yeast is the key to high-concentration mash fermentation.

关 键 词：生物工程 生物能源 酶 乙醇 浓醪发酵 

分 类 号：TK6[动力工程及工程热物理—生物能]