期刊论文

Xiong, X.(xiongxy@hnau.net)

中文

太阳能学报

0254-0096

2013

34

7

1120-1124

10.3969/j.issn.0254-0096.2013.07.002

国家高技术研究发展（863）计划（2012AA101804） 湖南省自然科学基金（12JJ3027） 湖南省科技计划（2012NK3086）

本校为第一且通讯机构

采用1-烯丙基-3-甲基咪唑氯盐([Amim]Cl)和1-乙基-3-甲基咪唑醋酸盐([Emim]Ac)两种离子液体对稻草进行预处理,检测和分析稻草经预处理后纤维素酶酶解产糖量和生化组分含量的变化,并对其结构进行表征及分析。结果表明:两种离子液体预处理均能显著提高稻草的酶解产糖量,经[Amim]Cl或[Emim]Ac预处理后的样品还原糖产量最高分别达到276.9mg/g(130℃,4h)和304.0mg/g(130℃,2h),比未预处理样品的产糖量分别提高6.1和6.7倍;离子液体预处理能改变稻草中纤维素晶型且降低其结晶度,破坏其网状结构,从而提高酶解效率。

Two kinds of ionic liquids: 1-allyl-3-methylimidazolium chloride ([Amim]Cl) and 1-ethyl-3-methylimidazolium acetate ([Emim]Ac) were used to treat straw. The reducing sugar and sugar compounds yield after enzymatic hydrolysis and the chemical composition of straw were investigated, while the untreated straw was used as the control. The results showed that the yield of reducing sugar pretreatment by [Amim]Cl or [Emim]Ac reaches 276.9 mg/g (130°C, 4 h) or 304.0 mg/g (130°C, 2 h), respectively after enzymatic hydrolysis. The structural characterization of the straw was carried out by using...