请输入您要查询的字词:

 

单词 lignin
释义
lignin

Chemistry
  • A complex organic polymer that is deposited within the cellulose of plant cell walls during secondary thickening. Lignification makes the walls woody and therefore rigid.


Chemical Engineering
  • An organic substance found in the woody parts of plants and is associated with cellulose. It is the raw material used in papermaking such as the sulphite process. In the kraft process it is cooked with a solution containing sodium hydroxide and sodium sulphide.


Biology
  • A complex organic polymer that is deposited within the cellulose of plant cell walls during secondary thickening. Lignification makes the walls woody and therefore rigid, enabling plants to grow tall against the pull of gravity. It is the second most abundant biopolymer on earth, after cellulose. See sclerenchyma.


随便看

 

科学参考收录了60776条科技类词条,基本涵盖了常见科技类参考文献及英语词汇的翻译,是科学学习和研究的有利工具。

 

Copyright © 2000-2023 Sciref.net All Rights Reserved
京ICP备2021023879号 更新时间:2024/9/29 23:06:01