摘要
以木薯淀粉为原料,以筛选到的耐高温酵母为菌种,进行高温浓醪发酵酒精工艺条件的研究。经单因素、正交实验,得到最佳工艺为:按1∶2的料水比,经液化糖化后,冷却到37℃,调pH为4.0,加入0.10%尿素,接种量为5%,发酵64h,最高酒度可达15.54%vol。
The technical conditions of high-temperature and high-gravity ethanol fermentation of cassava starch with the screened high-temperature resistance yeast as microbial species were investigated. And the optimum technical conditions were determined as follows through single factor test and orthogonal test: the ratio of raw materials to water was 1:2, then after liquefaction and saccharification, the broth was cooled down to 37 ℃ and its pH value adjusted to 4.0, then 0.10 % urea added and the inoculation quantitiy was 5 %, then after 64 h fermentation, the highest al- cohol content could reach up to 15.54 %vo1.
出处
《酿酒科技》
2009年第9期23-25,28,共4页
Liquor-Making Science & Technology
基金
国家科技支撑计划课题(2007BAD75B05)
国际科技合作项目(2008DFA30710)
桂科院研(0701)
关键词
酒精
浓醪发酵
耐高温
木薯淀粉
ethanol
high-gravity mash fermentation
high temperature resistance
cassava starch