| 微波辅助SO42--TiO2/黏土固体酸提取稻草木质素的响应面优化 |
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| 引用本文： | 余先纯,李湘苏,龚铮午.微波辅助SO42--TiO2/黏土固体酸提取稻草木质素的响应面优化[J].湖北农业科学,2012(2):369-372. |
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| 作者姓名： | 余先纯 李湘苏 龚铮午 |
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| 作者单位： | 岳阳职业技术学院基础部中草药综合利用重点实验室;中南林业科技大学材料科学与工程学院;南华大学教务科 |
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| 基金项目： | 湖南省教育厅科技项目(08D124) |
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| 摘 要： | 采用微波辅助SO42--TiO2/黏土固体酸提取稻草木质素,探讨了固体酸质量分数、微波处理时间、微波功率、液固质量比对木质素提取率的影响。结果表明,固体酸质量分数5.1%、微波处理时间51 min、微波功率388 W、液固质量比10∶1为较优的制备工艺。在该工艺条件下,木质素的提取率为70.15%,比相同工艺条件下常规提取法的提取率提高了21.62%。
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| 关 键 词： | 稻草木质素 微波处理 固体酸 工艺优化 |
Response Surface Optimization of Microwave assisted Lignin Extraction from Rice Straw with SO42--TiO2/Clay Solid Acid |
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| YU Xian-chun,LI Xiang-su,GONG Zheng-wu.Response Surface Optimization of Microwave assisted Lignin Extraction from Rice Straw with SO42--TiO2/Clay Solid Acid[J].Hubei Agricultural Sciences,2012(2):369-372. |
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| Authors: | YU Xian-chun LI Xiang-su GONG Zheng-wu |
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| Institution: | 1.Key Lab of Chinese Herbal Medicine Multipurpose Use,Basis Department,Yueyang Vocational & Technical College,Yueyang 414000,Hunan,China;2.College of Material and Engineering,Central South University of Forestry and Technology,Changsha 410004,China; 3.Academic Administration,University of South China,Hengyang 421002,Hunan,China) |
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| Abstract: | Lignin was extracted from rice straw via microwave treatment with SO42——TiO2/clay solid acid.The effects of mass fraction of solid acid,reaction time,microwave power and liquid-solid ratios on the lignin yield were discussed.The experimental results showed that the optimal condition was as follow,mass fraction of solid acid,5.1%;Reaction time,51 min;Microwave power,388 W;And liquid-solid ratios,10∶1.Under this condition,the lignin yield could reach to 70.15%;Increased by 21.62% compared with that obtained by the conventional methods with the same condition. |
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| Keywords: | rice lignin microwave treatment solid acid process optimization |
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