【作者】 杨培周； 姜绍通； 郑志； 罗水忠；

【Author】 Yang Peizhou~(1,2,3),Jiang Shaotong~(1,2,3※),Zheng Zhi~(1,3),Luo Shuizhong~(1,3) (1.School of Biotechnology and Food Engineering,Hefei University of Technology,Hefei 23009,China; 2.Food Science and Engineering Post-doctoral Research Center,Hefei University of Technology,Hefei 23009,China; 3.Key Laboratory for Agriculture Products Processing of Anhui Province,Hefei 230009,China)

【机构】 合肥工业大学生物与食品工程学院； 合肥工业大学食品科学与工程博士后科研流动站； 安徽省农产品精深加工重点实验室；

【摘要】 为利用草坪草生产燃料乙醇,通过粉碎和碱性氧化物浸泡预处理草坪草,采用纤维素酶和果胶酶混合糖化纤维素,研究嗜鞣管囊酵母和酿酒酵母发酵水解液生产乙醇,结果表明,碱性氧化物固液比为1:40(质量比),浸泡48 h预处理后的木质素脱除率为70%(质量分数):嗜鞣管囊酵母和酿洒酵母发酵30 h后乙醇的质量体积分数最高,分别为9.6g/L和11.7 g/L,以可发酵糖减少量计算,糖醇转化率分别为25.7%和38.1%(质量分数),为理论糖醇转化率的61.2%和74.7%。更多还原

【Abstract】 In order to produce fuel-ethanol from the turfgrass,the mixing fermentation of hydrolysis was carried out by both the Pachysolen tannophilus and Saccharomyces cerevisiae.After the pretreatments of the powdering and soaking of alkaline oxide,the solid residues were decomposed by the mixing of both the cellulase and pectase.The results showed that the percentage of lignin removal reached 70%under the condition of solid-liquid rate 1:40(w/w)of alkaline oxide, soaking time 48 h.The ethanol concentration reached 9.6 g/L and 11.7 g/L,respectively,after 30 h of fermentation.The conversion rates of sugar-ethanol were 25.7%and 38.1%(w/w),which had 61.2%and 74.7%of the theoretical value, respectively.更多还原