当前位置: 首页 > 文章 > 运动发酵单胞菌发酵红薯淀粉生产乙醇工艺的研究 贵州农业科学 2010,38 (5) 202-206
Position: Home > Articles > Study on Ethanol Production Technology from Sweet Potato Starch by Zymomonas mobilis Guizhou Agricultural Sciences 2010,38 (5) 202-206

运动发酵单胞菌发酵红薯淀粉生产乙醇工艺的研究

作  者:
杨坤;周礼红;刘作易;朱国胜
单  位:
贵州省农业科学院;贵州大学
关键词:
运动发酵单胞菌;生料发酵;红薯淀粉;酒精
摘  要:
为了建立运动发酵单胞菌生料发酵生产燃料乙醇的工艺,通过全因子试验优化ɑ-淀粉酶和糖化酶的添加量,其最优组合为ɑ-淀粉酶80 U/g、糖化酶400 U/g。通过单因素试验、正交试验,对运动发酵单胞菌发酵红薯淀粉产乙醇的操作条件进行优化,结果表明:在35℃,料水比1∶2,装液量40%,糖化酶400 U/g,pH为4,振荡培养,发酵成熟醪液酒精度为14.10%(v/v),淀粉利用率为45.28%,淀粉出酒率为25.73%。
译  名:
Study on Ethanol Production Technology from Sweet Potato Starch by Zymomonas mobilis
作  者:
YANG Kun1,ZHOU Li-hong1,LIU Zuo-yi2,ZHU Guo-sheng2(1.College of Life Science,Guizhou University,Guiyang,Guizhou 550025;2.Guizhou Academy of Agricultural Sciences,Guiyang,Guizhou 550006,China)
关键词:
Zymomonas mobilis;fermentation of uncooked material;sweet potato starch;ethanol
摘  要:
The all-factors experiment was designed to optimize ɑ-amylase and glucoamylase dosage for establishing the ethanol production technology from sweet potato starch fermented by Zymomonas mobilis.The optimum combination was 80U/g ɑ-amylase and 400U/g glucoamylase.The operation condition of ethanol produced from sweet potato starch fermented by Zymomonas mobilis was optimized by using the single factor and orthogonal experiments.The results showed that the ethanol yield could reach 14.10%(v/v),the starch utilization rate and the ethanol yield of starch were 45.28% and 25.73% under the optimum conditions of 1∶2 of sweet potato starch to water,40% solution volume in 500mL flask,400U/g glucoamylase,pH 4,35℃ and shaking culture respectively.

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