| 超高压环境下离子液体微乳液预处理对水稻秸秆的影响 |
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| 引用本文： | 高静,郑才菊,谈婷如,张迪,刘书成,吉宏武.超高压环境下离子液体微乳液预处理对水稻秸秆的影响[J].化工学报,2018,69(8):3686-3692. |
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| 作者姓名： | 高静 郑才菊 谈婷如 张迪 刘书成 吉宏武 |
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| 作者单位： | 1.广东海洋大学食品科技学院, 广东 湛江 524088;2.水产品深加工广东省普通高校重点实验室, 广东 湛江 524088;3.广东省水产品加工与安全重点实验室, 广东 湛江 524088 |
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| 基金项目： | 国家自然科学基金项目（21706040）；广东省创新强校项目（2015KQNCX061，GDOU2015050240）。 |
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| 摘 要： | 以水稻秸秆为原料，对比了中低温条件下单独超高压（UHP）、单独离子液体微乳液（ILM）和超高压环境下离子液体微乳液（ILM+UHP）3种预处理方法，系统分析了预处理前后样品的化学组成、晶体结构、表面形貌以及酶水解的变化规律。结果表明，采用1-乙基-3甲基咪唑醋酸盐/环己烷/TX-100/正丁醇微乳液处理水稻秸秆，在压强为500 MPa、温度为50℃下处理4 h后，样品中木质素去除率为61.5%，纤维素结晶度指数下降17.3%，微观表面粗糙多孔，酶水解48 h的还原糖产率达75.3%。
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| 关 键 词： | 生物质 离子液体 微乳液 超高压 预处理 水解 |
| 收稿时间： | 2017-11-20 |
| 修稿时间： | 2018-05-29 |
Effect of ionic liquid micro emulsion pretreatment on rice straw at ultra-high pressure |
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| GAO Jing,ZHENG Caiju,TAN Tingru,ZHANG Di,LIU Shucheng,JI Hongwu.Effect of ionic liquid micro emulsion pretreatment on rice straw at ultra-high pressure[J].Journal of Chemical Industry and Engineering(China),2018,69(8):3686-3692. |
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| Authors: | GAO Jing ZHENG Caiju TAN Tingru ZHANG Di LIU Shucheng JI Hongwu |
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| Affiliation: | 1.College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, Guangdong, China;2.Key Laboratory of Advanced Processing of Aquatic Products of Guangdong Higher Education Institution, Zhanjiang 524088, Guangdong, China;3.Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Zhanjiang 524088, Guangdong, China |
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| Abstract: | Rice straw was pretreated by ultra-high pressure (UHP), ionic liquid micro emulsion (ILM), and ILM in UHP environment (ILM+UHP) at mild temperatures. The effect of the pretreatments on the chemical composition, crystalline structure, surface morphology and enzymatic hydrolysis of rice straw were investigated. The results show that after the pretreatment with 1-ethyl-3-methylimidazolium acetate/cyclohexane/Triton X-100/n-butanol ILM at 500 MPa, 50℃, for 4 h, 61.5% of the lignin was removed, crystallinity index was reduced by 17.3%, the surface was coarse and porous, and the reducing sugar yield achieved 75.3%. |
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| Keywords: | biomass ionic liquids micro emulsion ultra-high pressure pretreatment hydrolysis |
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