| 无机金属盐和过氧化物对酸处理玉米秸秆纤维素和半纤维素降解的影响 |
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| 引用本文： | 贾飞,许海艳,关转飞,王鑫,杨翔华. 无机金属盐和过氧化物对酸处理玉米秸秆纤维素和半纤维素降解的影响[J]. 食品工业科技, 2011, 0(10): 349-352,357 |
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| 作者姓名： | 贾飞 许海艳 关转飞 王鑫 杨翔华 |
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| 作者单位： | 辽宁石油化工大学环境与生物工程学院,辽宁抚顺,113001 |
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| 基金项目： | 抚顺石油化工研究院院控项目(SH0905) |
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| 摘 要： | 纤维质物料的预处理是木质纤维素原料发酵生产燃料乙醇的关键步骤。使用加入无机盐和H2O2的稀酸溶液处理玉米秸秆，并考察其对纤维素和半纤维素降解的影响，同时测定了相应的降解速率和处理强度（R）。结果表明，无机盐和H2O2的存在提高了玉米秸秆半纤维素的降解程度和降解速率，促进了半纤维素的单糖转化率，但对纤维素的降解影响不大。通过条件优化，当R值为0．2时，木糖回收率最高达85％，而纤维素得到了有效的保留，损失率不超过10％。
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| 关 键 词： | 玉米秸秆 纤维素 半纤维素 稀酸水解 |
Effect of inorganic salts and peroxide on degradation of corn stalks cellulose and hemicellulose treated by dilute acid |
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| JIA Fei,XU Hai-yan,GUAN Zhuan-fei,WANG Xin,YANG Xiang-hua. Effect of inorganic salts and peroxide on degradation of corn stalks cellulose and hemicellulose treated by dilute acid[J]. Science and Technology of Food Industry, 2011, 0(10): 349-352,357 |
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| Authors: | JIA Fei XU Hai-yan GUAN Zhuan-fei WANG Xin YANG Xiang-hua |
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| Affiliation: | JIA Fei,XU Hai-yan,GUAN Zhuan-fei,WANG Xin,YANG Xiang-hua(School of Environmental and Biological Engineering,Liaoning Shihua University,Fushun 113001,China) |
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| Abstract: | Pretreatment has been viewed as one of the most important operation steps in the bioconversion of lignocellulosic biomass to ethanol. In the study,inorganic salts and H2O2 were studied as promoter in the dilute acid pretreatment for the degradation of cellulose and hemicellulose in corn stover. The degradation rate constant and severity of the pretreatment reaction was also determined. The results showed that the pretreatment by inorganic salts and H2O2 were more effect than the only dilute acid pretreatmen... |
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| Keywords: | corn stover cellulose hemicellulose dilute acid hydrolysis |
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