酒糟处理方式在细菌酒精全回流发酵中的研究  

Study on the manners of disposal stillage in the broth recycle in the ethanol fermentation by Zymomonas Mobilis

作　　者：陶飞[1] 石贵阳[1] 章克昌[1] 

机构地区：[1]江南大学工业生物技术教育部重点实验室,江苏无锡214036

出　　处：《酿酒》2003年第5期34-36,共3页Liquor Making

基　　金：江苏省自然科学基金;BQ1998039

摘　　要：酒精生产过程中,产生了大量的酒糟废液。若不进行适当处理,将会对环境造成严重的污染。研究了酒糟直接回流、酒糟滤液回流和酒糟离心回流的情况以及不同的营养组合对细菌酒精全回流发酵的影响。结果表明:过滤后的酒糟废液,代替原来的拌料用水,循环用于酒精生产,可以实现酒糟的全回流。在回流发酵进行了八批后,酒精产量稳定在67.1 g/L以上,比没有回流时的65.2 g/L略有提高。而且在回流中,并不需要每次都添加氮源,这样可以减少发酵有害物质的积累,有利于实现酒糟滤液全回流。With ethanol production, there comes large amount of ethanol stillage, which is a main kind of pollutant source in ethanol fermentation. But if it is recycled to replace process water in the ethanol fermentation, not only the pollution will be eliminated, but also the nutrients in the stillage will be saved. In this paper, the manners of disposal the stillage and the combination of nurishment in the recycling media was studied. More than 67.1 g/L ethanol yield, which was no less than former ethanol yield of 65.2 g/L, was obtained up to eight recycles.

关 键 词：酒精生产 酒糟废液 处理方式 细菌酒精全回流发酵 营养组合 培养基 运动发酵单胞菌 

分 类 号：TS262.2[轻工技术与工程—发酵工程] TS261.9[轻工技术与工程—食品科学与工程]