ON NATIVE AND ADVENTIVE LIGNIN-CARBOHYDRATE COMPLEX (LCC) STRUCTURES

摘要：

The LCC fractionation process developed by us has been further rationalized and successively applied for flax Soda-AQ pulps in demonstrating its universal applicability on all types of wood and non-wood species. The LCC characterization results revealed that native lignin is substantially attached at hemicelluloses, as xylan-lignin (accounted for 49％ over the total amount of wood Klason lignin in eucalyptus and 20％ in spruce) or as glucomannan-lignin (53％ in spruce wood). As an example of adventive (manipulated) LCC structure, phenolic mediator-coupled xylan structure was identified at the xylan-lignin fraction prepared from laccase-mediator treated flax Soda-AQ pulps. The coupling took place between the mediator, lauryl gallate, and hexenuronic acid (HexA) at the intermediate layer in the pulps.

关键词： coupling eucalyptus flax fractionation hexenuronic acid laccase lignin-carbohydrate complex mediator spruce structural analysis

作者: Li Jiebing

作者单位: Department of Fibre and Polymer Technology, Royal Institute of Technology, KTH, SE-100 44 Stockholm,Sweden

会议类型: 国际会议

会议名称: 4th ISETPP(第四届制浆造纸新技术国际研讨会)

会议地点: 广州

会议语种:英文

页码: 328-331

在线出版日期: 2010-11-08（万方平台首次上网日期，不代表论文的发表时间）