...
首页> 外文期刊>Biotechnology Advances: An International Review Journal >Fractional purification and bioconversion of hemicelluloses.
【24h】

Fractional purification and bioconversion of hemicelluloses.

机译:半纤维素的部分纯化和生物转化。

获取原文
获取原文并翻译 | 示例
           

摘要

Hemicelluloses are types of plant cell wall polysaccharides, and the world's second most abundant renewable polymers after cellulose in lignocellulosic materials. They represent a type of hetero-polysaccharide with complex structure containing glucose, xylose, mannose, galactose, arabinose, rhamnose, glucuronic acid, and galacturonic acid in various amounts, depending on the source. Hemicelluloses are usually bonded to other cell-wall components such as cellulose, cell-wall proteins, lignin, and phenolic compounds by covalent and hydrogen bonds, and by ionic and hydrophobic interactions. This paper provides a review on hemicelluloses from lignocellulosic materials, especially in regard to their isolation and purification methods, and bioconversion. Current isolation and purification strategies are summarized, including: alkali peroxide extraction, organic solvent extraction, steam explosion, ultrasound-assisted extraction, microwave-assisted extraction, column chromatography, and membrane separation. In addition, the bioconversion of hemicelluloses including pretreatment, enzymatic hydrolysis, and fermentation are discussed.
机译:半纤维素是植物细胞壁多糖的一种,是木质纤维素材料中仅次于纤维素的世界第二大可再生聚合物。它们代表具有复杂结构的一类杂多糖,根据来源,其包含各种量的葡萄糖,木糖,甘露糖,半乳糖,阿拉伯糖,鼠李糖,葡萄糖醛酸和半乳糖醛酸。半纤维素通常通过共价键和氢键以及离子和疏水相互作用与其他细胞壁成分如纤维素,细胞壁蛋白,木质素和酚类化合物结合。本文对木质纤维素材料中的半纤维素进行了综述,特别是它们的分离和纯化方法以及生物转化。总结了目前的分离和纯化策略,包括:过氧化碱提取,有机溶剂提取,蒸汽爆炸,超声辅助提取,微波辅助提取,柱色谱和膜分离。另外,还讨论了半纤维素的生物转化,包括预处理,酶促水解和发酵。

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