| 纤维素在微波场下经离子液体预处理酶解糖 |
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| 引用本文： | 刘振,郝静静,代辉,王键吉.纤维素在微波场下经离子液体预处理酶解糖[J].微波学报,2011,27(3):93-96. |
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| 作者姓名： | 刘振 郝静静 代辉 王键吉 |
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| 作者单位： | 河南科技大学化工与制药学院,洛阳,471003 |
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| 基金项目： | 国家863计划(2007AA05Z454); 河南省高等学校青年骨干教师项目(2009GGJS-052); 洛阳市科技发展计划(0801027A) |
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| 摘 要： | 利用离子液体氯化1-丁基-3-甲基-咪唑（Bmim]Cl）在微波场下对纤维素进行预处理。结果表明,纤维素经预处理后聚合度下降,酶解糖化速度随预处理微波强度和温度增加呈现先增加后下降的趋势,在300W、90℃、1h下出现最大值18.28 g.L-1.h-1,相比未处理的纤维素糖化速度提高160%。通过电子显微镜和红外光谱分析,再生纤维素出现了解聚现象,结晶度也明显下降。
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| 关 键 词： | 纤维素 离子液体 微波 糖化 预处理 |
Cellulose Saccharification after Ionic Liquid Pretreatment with Microwave |
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| LIU Zhen,HAO Jingjing,DAI Hui,WANG Jianji.Cellulose Saccharification after Ionic Liquid Pretreatment with Microwave[J].Journal of Microwaves,2011,27(3):93-96. |
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| Authors: | LIU Zhen HAO Jingjing DAI Hui WANG Jianji |
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| Affiliation: | LIU Zhen,HAO Jing-jing,DAI Hui,WANG Jian-ji(Chemical Engineering & Pharmaceutics College,Henan University of Science and Technology,Luoyang 471003,China) |
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| Abstract: | Cellulose was pretreated by an IL,1-n-butyl-methylimidazolium chloride(Bmim]Cl) with microwave.The experimental results show that degree of polymerization(DP) of cellulose decreases after being pretreated.With the increase of pretreatment microwave intensity and temperature,the saccharification rate increases at begining and then decreases.It reaches a maximal value of 18.28gL-1h-1 at 300W,90℃ after 1 hour.The saccharification rate increases by 160% compared with untreated cellulose.Scanning Electronic Microscopy(SEM) and Fourier Transform Infrared-Raman Spectroscop(FT-IR) analysis show that the cellulose is deploymerized into fragments and the crystallinity of the cellulose significantly decreases after pretreatment. |
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| Keywords: | cellulose ionic liquids microwave saccharification pretreatment |
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