您好，欢迎访问湖南省农业科学院 机构知识库！

Batch and multi-step fed-batch enzymatic saccharification of Formiline-pretreated sugarcane bagasse at high solid loadings for high sugar and ethanol titers

文献类型： 外文期刊

作者： Zhao, Xuebing 1 ; Dong, Lei 1 ; Chen, Liang 2 ; Liu, Dehua 1 ;

作者机构： 1.Tsinghua Univ, Inst Appl Chem, Dept Chem Engn, Beijing 100084, Peoples R China

2.Hunan Inst Nucl Agr Sci & Space Breeding, Changsha 410125, Hunan, Peoples R China

关键词： Enzymatic saccharification;Fed-batch process;Formiline pretreatment;High solid loading;Lignocellulose

期刊名称：BIORESOURCE TECHNOLOGY （ 影响因子：9.642； 五年影响因子：9.237 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： Formiline pretreatment pertains to a biomass fractionation process. In the present work, Formiline-pretreated sugarcane bagasse was hydrolyzed with cellulases by batch and multi-step fed-batch processes at 20% solid loading. For wet pulp, after 144. h incubation with cellulase loading of 10. FPU/g dry solid, fed-batch process obtained ~150. g/L glucose and ~80% glucan conversion, while batch process obtained ~130. g/L glucose with corresponding ~70% glucan conversion. Solid loading could be further increased to 30% for the acetone-dried pulp. By fed-batch hydrolysis of the dried pulp in pH. 4.8 buffer solution, glucose concentration could be 247.3. ±. 1.6. g/L with corresponding 86.1. ±. 0.6% glucan conversion. The enzymatic hydrolyzates could be well converted to ethanol by a subsequent fermentation using Saccharomices cerevisiae with ethanol titer of 60-70. g/L. Batch and fed-batch SSF indicated that Formiline-pretreated substrate showed excellent fermentability. The final ethanol concentration was 80. g/L with corresponding 82.7% of theoretical yield.

  • 相关文献

[1]Comparison of gamma irradiation and steam explosion pretreatment for ethanol production from agricultural residues. Chen, Jing-ping,Chen, Liang,Xiong, Xing-yao,Su, Xiaojun,Liu, Yun. 2012

作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：湖南省农业科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台