生物质化学工程Issue(4)：25-30,6.DOI:10.3969/j.issn.1673-5854.2015.04.005
橡子粉同步液化糖化产燃料乙醇的发酵条件优化
Fermentation Optimization of Fuel Ethanol Producing by Simultaneous Liquefaction,Saccharification and Fermentation from Acorn Flour
摘要
Abstract
The fuel ethanol was produced from acron flour by simultaneous liquefaction, saccharification and fermentation ( SLSF) . The optimum conditions of fermentation by SLSF technology were determined through single factor experiments and orthogonal experiments. The results showed that SLSF technology was suitable for the ethanol fermentation from acorn flour. The optimum conditions were 20 g acorn flour removed of tannin,the ratio of materials to water 1∶3,amylase 100 U/g,glucoamylase 3 750 U/g and active dry yeast 1. 50%. The ethanol concentration of fermentation broth reached 106. 5 g/L after static fermentation for 120 h at 30℃,and the conversion rate of acorn starch into ethanol reached 89. 36%. The ethanol concentration of fermentation liquor by simultaneous liquefaction, saccharification and fermentation was comparable to the ethanol concentration fermented by corn and other food crops.关键词
橡子/同步液化糖化发酵/燃料乙醇Key words
acorn flour/simultaneous liquefaction,saccharification and fermentation/fuel ethanol分类
化学化工引用本文复制引用
张宁,蒋剑春,杨静,卫民,赵剑,陈水根..橡子粉同步液化糖化产燃料乙醇的发酵条件优化[J].生物质化学工程,2015,(4):25-30,6.基金项目
“十二五”国家科技支撑计划资助(2014BAD02B02) （2014BAD02B02）
江苏省自然科学基金资助项目(BK2012515) （BK2012515）
国家自然科学基金资助项目(31100429) （31100429）
