Effect of xylanase, urea, Tween and Triton additives on bioethanol production of corn stover

2nd International Conference on Advances in Energy Resources and Environment Engineering

能源学;生态环境科学

Xin, Xiu^1 ; Lu, Jie^1 ; Yang, Rui-Feng^1 ; Song, Wen-Jing^1 ; Li, Hai-Ming^1,2 ; Wang, Hai-Song^1 ; Zhou, Jing-Hui^1

Dalian Polytechnic University, Dalian, China^1

State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, China^2

关键词: Bio-ethanol production;    Ethanol concentrations;    Experimental conditions;    Liquid hot water;    Potential sources;    Promoting effect;    Promotion effects;    Triton X-100;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/59/1/012055/pdf
DOI  :  10.1088/1755-1315/59/1/012055

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Corn stover is a potential source of renewable biomass for conversion to bioethanol. Fed-batch semi-simultaneous saccharifcation and fermentation (S-SSF) of corn stover pretreated by liquid hot water (LHW) was investigated. The present study aimed to confirm the influence of xylanase, urea, Tween and Triton additives on bioethanol. Results show that the positive effect of xylanase, urea, Tween was observed. High ethanol concentration requires the addition of xylanase in the stage of saccharification. The optimal amount of xylanase was 0.2 g/g biomass and addition of Triton (Triton X-100) increases the effect of xylanase. Urea has a promotion effect on the whole fermentation process.When adding 0.1% urea in the fermentation stage,the best promoting rate is 24.2%. In the longitudinal comparison of the Tween series, under the same experimental conditions, the promoting effect of Tween series: Tween 40 > Tween 80 > Tween 20 > Tween 60.