Effects of alkali and steam coupling pretreatment on L-lactic acid yield in vinasse fermentation
Vinasse has large components in lignin and cellulose, in order to make cellulase utilize them efficiently and increase efficiency of complex use of wastes, three kinds of pretreatment were experimented to vinasse, containing simple alkali, simple steam and alkali and steam coupling. The results show that after simple alkali and simple steam pretreatment, Llactic acid yield of vinasse fermentation are 7.25g/L and 10g/L respectively, but after alkali and steam coupling pretreatment, the L-lactic acid yield increases significantly .reaching 26.25g/L. It means that alkali and steam cooperated with each other well. The vinasse fermentation with alkali and steam coupling pretreatment to produce L-lactic acid could minimize vinasse wastes, which has great benefits to circular economy and environmental sustainability.
vinasse pretreatment orthogonal experiment Llactic acid yield
Wang Shuang Wang Qunhui Liu Jianguo Li Juan
University of Science and Technology Beijing, Beijing, 100083, China
国际会议
2010 International Conference on Digital Manufacturing and Automation(2010 数字制造与自动化国际会议 ICDMA 2010)
长沙
英文
615-617
2010-12-18（万方平台首次上网日期，不代表论文的发表时间）