甜高粱茎秆固态发酵生产燃料乙醇研究
Study on Production of Fuel Ethanol from Sweet Sorghum Stalks by Solid-State Fermentation
本文通过研究甜高粱茎秆M-81E固态发酵生产燃料乙醇的主要影响因素，确定最优发酵条件为：耐高温酿酒酵母接种量为3％，发酵初始基质水分含量为76%，添加0.25％CaCl2，0.25％MgSO4•7H2O，40℃发酵24 h，乙醇得率为6.42 g/100g甜高粱茎秆，转化率为90.5%，残糖含量低于0.3%；添加10 FPU/g纤维素酶和10 CBU/g β-葡萄糖苷酶，进行同步糖化固态发酵，乙醇得率为7.53 g/100g甜高粱茎秆，与不添加纤维素酶和β-葡萄糖苷酶的相比，乙醇得率提高了14.6%。
Sweet sorghum stalks convert to fuel ethanol by solid-state fermentation with simple technology process and low pollution. The paper mainly studied critical factors of solid-fermentation from sweet sorghum stalks to ethanol, the results showed that under the optimum conditions，3% inoculation, original water content about 76%, 0.25% CaCl2, 0.25% MgSO4•7H2O, the ethanol yield was 6.42g/100g sweet sorghum stalks ,conversion rate was 90.5% at 40℃ for 24 h, and residue sugar was less than 0.3%. Adding 10 FPU/g cellulase, 10 CBU/g β-glycosidase for simultaneous saccharification and fermentation, the ethanol yield was 7.53g/100g sweet sorghum stalks , which was enhanced by 14.6% due to the bioconverserion polysaccharides to ethanol.
刘萍、孙君社、刘莉、康利平
生物工程学生物能、生物能机械设备
甜高粱茎秆固态发酵燃料乙醇
Sweet sorghum stalks Solid-fermentation Fuel ethanol
刘萍,孙君社,刘莉,康利平.甜高粱茎秆固态发酵生产燃料乙醇研究[EB/OL].(2007-10-24)[2025-08-18].http://www.paper.edu.cn/releasepaper/content/200710-410.点此复制
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