...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Agricultural and Food Chemistry >Lignin Extraction from Straw by Ionic Liquids and Enzymatic Hydrolysis of the Cellulosic Residues
【24h】

Lignin Extraction from Straw by Ionic Liquids and Enzymatic Hydrolysis of the Cellulosic Residues

机译：离子液体从秸秆中提取木质素及纤维素残基的酶水解

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Lignocellulose is a promising starting material for bioproducts, ranging from biofuels to specialty chemicals; however, lignocellulose is resistant to enzymatic degradation. Overcoming this resistance is therefore an important priority for the development of the lignocellulosic biorefinery concept. In this work, 1-ethyl-3-methylimidazolium acetate ([emim]Ac) was selected from six ionic liquid candidates for the extraction of lignin from triticale and wheat straw and flax shives. Lignin extractability, composition, and cellulose enzymatic digestibility of the residues after extraction by [emim]Ac were determined at various temperatures (70-150 °C) and time intervals (0.5-24 h). The optimal result (52.7% of acid insoluble lignin in triticale straw) was obtained at 150 °C after 90 min, yielding >95% cellulose digestibility of the residue. Little cellulose was extracted, and the extracted lignin was recovered by acid precipitation. Selective extraction of lignin by ionic liquids is a potentially efficient technique for the comprehensive utilization of lignocellulose.
机译：木质纤维素是从生物燃料到特种化学品的生物产品的有前途的原料。然而，木质纤维素对酶降解具有抗性。因此，克服这种抗性是发展木质纤维素生物精炼概念的重要优先事项。在这项工作中，从六种离子液体候选物中选择了乙酸1-乙基-3-甲基咪唑鎓乙酸盐（[emim] Ac），以从黑小麦，小麦秸秆和亚麻屑中提取木质素。在各种温度（70-150°C）和时间间隔（0.5-24 h）下，测定通过[emim] Ac萃取后的残留物的木质素提取率，组成和纤维素酶消化率。 90分钟后在150°C时可获得最佳结果（小黑麦草中酸不溶性木质素的52.7％），残留物的纤维素消化率> 95％。提取很少的纤维素，并且通过酸沉淀回收提取的木质素。离子液体对木质素的选择性萃取是一种综合利用木质纤维素的潜在有效技术。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号