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| 不同预处理方法对玉米秸秆酶解和乙醇发酵的影响 | |
| 引用本文： | 杜金峰,张万忠,王云山,苏志国. 不同预处理方法对玉米秸秆酶解和乙醇发酵的影响[J]. 沈阳农业大学学报, 2011, 42(2): 195-199 |
| 作者姓名： | 杜金峰 张万忠 王云山 苏志国 |
| 作者单位： | 1. 沈阳化工大学环境与生物工程学院,沈阳110142;中国科学院过程工程研究所生化工程国家重点实验室,北京100190 2. 沈阳化工大学环境与生物工程学院,沈阳,110142 3. 中国科学院过程工程研究所生化工程国家重点实验室,北京,100190 |
| 基金项目： | 中国科学院知识创新工程重大项目(KSCX1-YW-11D2) |
| 摘 要： | 研究不同预处理方法对玉米秸秆酶解和乙醇发酵的影响。比较玉米秸秆经粉碎、汽爆和水热3种预处理后酶解液葡萄糖含量、酶解率、乙醇得率以及发酵液中抑制物乙酸、糠醛和羟甲基糠醛的含量,对不同预处理方法进行评价。结果表明:水热超细玉米秸秆能有效提高酶解率,在固液比2:10,酶解48h时,生成葡萄糖含量为60.6g.L-1,纤维素酶解率为63.13%,并且产生的乙酸、糠醛和羟甲基糠醛的含量很低;以此水解液发酵生产乙醇,乙醇含量为28.29g.L-1,乙醇得率为46.68%,为理论乙醇得率的91.5%。说明采用水热超细秸秆可有效提高纤维素酶解率和乙醇得率。 |
| 关 键 词： | 玉米秸秆 水热法 酶解 发酵 |
Effects of Different Pretreatment on Enzymatic Hydrolysis and Ethanol Fermentation in Maize Straw |
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| DU Jin-feng,ZHANG Wan-zhong,WANG Yun-shan,SU Zhi-guo. Effects of Different Pretreatment on Enzymatic Hydrolysis and Ethanol Fermentation in Maize Straw[J]. Journal of Shenyang Aricultural University, 2011, 42(2): 195-199 | |
| Authors: | DU Jin-feng ZHANG Wan-zhong WANG Yun-shan SU Zhi-guo |
| Affiliation: | DU Jin-feng1,2,ZHANG Wan-zhong1*,WANG Yun-shan2,SU Zhi-guo2 (1.College of Environment and Biology,Shenyang University of Chemical Technology,Shenyang 110142,China,2.State Key Lab Biochem Eng,Inst Process Eng.,Chinese Academy of Sciences,Beijing 100190,China) |
| Abstract: | The effects of different pretreatments on enzymatic hydrolysis and ethanol fermentation in maize straw were investigated.The maize straw was pretreated by grinding,steam explosion(SE) and liquid hot water(LHW),respectively.The glucose concentration,hydrolysis rate,ethanol yield and inhibitor concentrations(acetic acid,furfurol and methylfurfurol) in enzymatic hydrolysate through different pretreatments were determined.The results showed that LHW pretreatment could significantly improve the hydrolysis rate,u... |
| Keywords: | corn stover LHW enzymolysis fermentation |
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