STRUCTURAL VERIFICATION OF LIGNIN-CARBOHYDRATE COMPLEX (LCC) STRUCTURES FROM SOFTWOOD FIBRES

摘要：

The LCC fractionation process developed earlier by us for hardwood samples has been further improved to include an additional fractionation of glucomannan-lignin by a step of Ba(OH)2 precipitation to suit softwood species better. Glucan-Lignin, Glucomannan-Lignin and Xylan-Lignin were thus obtained from spruce wood and subjected to SEC and NMR analysis and thioacidolysis followed by GC and SEC analysis respectively for structural elucidations. The LCC structures have been finally verified by comparisons with the LCC fractions prepared by another earlier developed softwood process.

关键词： lignin-carbohydrate complex lignin structure NMR size exclusion chromatography spruce thioacidolysis

作者: Du Xueyu Li Jiebing G(o)ran Gellerstedt

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: 332-335

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）