食品与发酵工业2015，Vol.41Issue(5)：35-40,6.DOI:10.13995/j.cnki.11-1802/ts.201505007
通气量对酿酒酵母GGSF16高浓度乙醇发酵的影响
Effect of aeration on very high gravity ethanol fermentation using Saccharomyces cerevisiae GGSF16
摘要
Abstract
Effect of different aeration rates on very high gravity (VHG) ethanol fermentation by Saccharomyces cerevisiae GGSF16 in a 5.0 L fermentor at glucose concentrations of 260 g/L was studied.The results indicated that a proper aeration was an important control factor to shorten fermentation time,increase biomass concentration,and improve the viability and ethanol inhibition of the yeast cells as compared to non-aeration condition.However,aeration led to decrease in the ethanol production and specific glucose uptake rate and specific ethanol production rate.The optimum aeration level was found to be 80 mL/min.Its biomass concentration reached 14.16 g dry wt/L and the ethanol productivity achieved 3.93 g/(L · h),which respectively increased 104 ％ and 70.1％ as compared to non-aeration fermentation.The final ethanol concentration reached 117.9 g/L and the yield of ethanol reached 0.452 g/g (the stoichiometric yield was 87.8 ％).关键词
通气量/高浓度乙醇发酵/酿酒酵母Key words
aeration/very high gravity ethanol fermentation/Saccharomyces cerevisiae引用本文复制引用
蒋凯,伍时华,赵东玲,张健,黄翠姬..通气量对酿酒酵母GGSF16高浓度乙醇发酵的影响[J].食品与发酵工业,2015,41(5):35-40,6.基金项目
广西科技攻关项目(桂科攻0782003-2) （桂科攻0782003-2）
广西高校科学技术研究项目(YB2014202) （YB2014202）
