摘要
为实现生物质预水解液中对木质素质量浓度的调控,探讨了不同P因子对杨木预水解液中Klason木质素和酸溶木质素质量浓度的影响,结果表明:P因子对杨木预水解液中的木质素质量浓度具有调控作用;预水解液中两类木质素质量浓度变化均分为快速增加(P因子<1 200)和缓慢增加(P因子>1 200)两个阶段,且Klason木质素与酸溶木质素质量浓度比值(r)稳定在(0.50±0.03)。P因子<306时,预水解液中木质素主要以木质素-碳水化合物复合体形式存在;P因子>691时,Klason木质素发生显著碎片化,并明显伴有假木质素生成。
In order to regulate the lignin mass concentration in prehydrolysis liquor, the mass concentrations of Klason lignin and acid-soluble lignin in the prehydrolysis liquor of triploid poplar were studied at different P-factor. The results showed that there was a regulating effect of P-factor on lignin mass concentration in poplar prehydrolysis liquor. The increasing processes of the mass concentration of two kinds of lignins were both divided into a fast phase （P-factor 〈1 200） and a following slow phase （P-factor 〉1 200）. The mass concentration ratio of Klason lignin to acid-soluble lignin（ r ） was revealed at （0.50±0.03）. The prehydrolysis lignin in the form of lignin-carbohydrate complex was found at P-factor 〈306. Klason lignin fragmentation and pseudo lignin formation were obviously indicated at P-factor〉691.
作者
冯年捷
汪继明
谢益民
杨鑫
刘达岸
FENG Nianjie1,2, WANG Jiming1, XIE Yimin1,2, YANG Xin3, LIU Da＇an3(1.Research Institute of Pulp ＆ Paper Engineering, Hubei University of Technology, Wuhan 430068, China; 2.Hubei Provincial Key LaboratolT of Green Materials tor Light Industry, Hubei University of Technology, Wuhan 430068, China; 3.China Tobacco Hubei Industrial LLC, Wuhan 430040, Chin)
出处
《林产化学与工业》
EI
CAS
CSCD
北大核心
2018年第4期35-40,共6页
Chemistry and Industry of Forest Products
基金
湖北工业大学博士科研启动基金(BSQD2017016)
关键词
预水解
P因子
木质素质量浓度
杨木
调控作用
prehydrolysis
P-factor
lignin mass concentration
triploid poplar
regulating effect
