EFFECT OF CHEMICAL ADDITIVES ON ENZYMATIC HYDROLYSIS OF CORN STALK PRETREATED WITH SPORL METHOD
SPORL is one of the important pretreatment methods for lignocellulose bioconversion into ethanol. Effects of additives on enzymatic hydrolysis of corn stalk pretreated with SPORL were investigated in this paper. Some kinds of surfactants including OP-10, AEO, Span80, Tween80, Tween60, SDS, and PEG with various molecular mass were chosen to evaluate their ability to improve enzymatic hydrolysis of substrate. The results indicated that surfactants except SDS and PEGs improved enzymatic hydrolysis of the substrate. All non-ionic additives used could enhance enzymatic hydrolysis while anionic surfactant played the opposite role. OP-10(alkyl phenol polyoxyethylene ether) was the best choice. Compared with the control, the enzymatic hydrolysis rate of substrate and glucose yield were increased by 36.25％ and 19.52％, respectively, when 1.5％ OP-10 was added. The reason may be due to that non-ionic additives can promote enzyme activity and the ineffective adsorption of cellulase on substrate was reduced.
chemical additives sporlpretreatment enzymatic hydrolysis corn stalk
Chungang Pu Gaosheng Wang Yunyun Liu
Tianjin Key Laboratory of Pulp and Paper,Tianjin University of Science and Technology, Tianjin 30045 Tianjin Key Laboratory of Pulp and Paper, Tianjin University of Science and Technology, Tianjin 3004 Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China.
国际会议
16th International Symposium on Wood,Fiber and Pulping Chemistry(第十六届木材、纤维及制浆化学国际会议)
天津
英文
902-907
2011-06-08（万方平台首次上网日期，不代表论文的发表时间）