酶解-温和酸解法分离烟梗木质素  

Isolation of Lignin from Tobacco Stem by the Method of Enzymatic Hydrolysis-mild Acidolysis

作　　者：楚文娟[1] 李文伟[1] 李颢[2] 

机构地区：[1]河南中烟工业有限责任公司安阳卷烟厂,河南安阳455004 [2]长江大学化学与环境工程学院,湖北荆州434023

出　　处：《广东化工》2015年第17期75-76,共2页Guangdong Chemical Industry

基　　金：河南中烟项目"烟草中木质素的提取;热解行为及其对烟草品质的影响规律研究"(豫烟工技[2013]11号)

摘　　要：采用酶解-温和酸解法从烟梗粉中分离出木质素。研究了稀硫酸预处理对烟梗粉酶解过程的影响,优化了烟梗粉酶解的反应条件,考察了HCl浓度对酶解木质素温和酸解的影响。通过FT-IR的表征手段对木质素样品进行了表征,结果表明,烟梗木质素具有典型的紫丁香基和愈创木基特征峰,说明烟梗木质素的结构单元主要由紫丁香基和愈创木基组成。Lignin from tobacco stem was isolated by the method of enzymatic hydrolysis-mild acidolysis. The effect of dilute H2SO4 pretreatment on the enzymatic hydrolysis of tobacco stem powder was studied. The reaction conditions of enzymatic hydrolysis process were optimized. The effect of HCl concentration on the mild acidolysis of cellulolytic enzyme lignin was also investigated. The lignin samples were characterized using FT-IR spectroscopy, The results revealed that tobacco stem lignin contained characteristic peaks of syringyl and guaiacyl units, suggesting that the structure units of tobacco stem lignin were mainly constituted by syringyl and guaiacyl groups.

关 键 词：烟梗 木质素 酶解 酸解 

分 类 号：TQ353.42[化学工程]