| 表面活性剂对麦草同步糖化发酵转化乙醇的影响 |
| |
| 引用本文： | 罗鹏,刘忠.表面活性剂对麦草同步糖化发酵转化乙醇的影响[J].过程工程学报,2009,9(2):355-359. |
| |
| 作者姓名： | 罗鹏 刘忠 |
| |
| 作者单位： | 1. 天津商业大学机械工程学院,天津,300134
2. 天津科技大学材料科学与化学工程学院,天津,300222 |
| |
| 基金项目： | 天津市科技攻关计划基金 |
| |
| 摘 要： | 研究了5种非离子型表面活性剂(BSA, Tween-20, Tween-80, PEG-4000, PEG-6000)促进麦草同步糖化发酵的效果. 结果表明，5种表面活性剂均能促进麦草同步糖化发酵，以Tween-20效果最为显著. 反应体系中添加Tween-20可降低酶用量而保持乙醇浓度基本相同. 在pH 5.0、温度37℃、底物浓度50 g/L及Celluclast 1.5 l用量25 FPU/g、Novozym 188用量15 IU/g的反应体系中，添加0.03 g/g Tween-20，反应72 h，乙醇浓度达到18.7 g/L，比未添加表面活性剂的体系提高了14.0%，反应时间缩短了12 h.
|
| 关 键 词： | 麦草 表面活性剂 同步糖化发酵 乙醇 |
| 收稿时间： | 2008-8-28 |
| 修稿时间： | 2009-1-12 |
Effects of Surfactants on Simultaneous Saccharification and Fermentation of Wheat Straw to Ethanol |
| |
| LUO Peng,LIU Zhong.Effects of Surfactants on Simultaneous Saccharification and Fermentation of Wheat Straw to Ethanol[J].Chinese Journal of Process Engineering,2009,9(2):355-359. |
| |
| Authors: | LUO Peng LIU Zhong |
| |
| Affiliation: | 1.College of Mechanical Engineering;Tianjin University of Commerce;Tianjin 300134;China;2.College of Material Science and Chemical Engineering;Tianjin University of Science and Technology;Tianjin 300222;China |
| |
| Abstract: | Five different non-ionic surfactants,BSA,Tween-20,Tween-80,PEG-4000 and PEG-6000,were evaluated for their ability to enhance simultaneous saccharification and fermentation(SSF) of wheat straw.The results indicated that all non-ionic surfactants tested improved the SSF of wheat straw,and Tween-20 was the most effective.Addition of Tween-20 decreased the enzyme loading while retaining the same ethanol concentration.The ethanol concentration of 18.7 g/L was achieved at a substrate concentration of 50 g/L at 37... |
| |
| Keywords: | wheat straw surfactant simultaneous saccharification and fermentation ethanol |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《过程工程学报》浏览原始摘要信息 |
|
点击此处可从《过程工程学报》下载全文 |
