高沸醇溶剂法提取烟梗中木质素的研究  

Extraction of lignin from tobacco stem with high boiling solvent

作　　者：郑永杰[1] 马林[1] 寇霄腾[1] 张锐[1] 

机构地区：[1]郑州轻工业学院烟草科学与工程学院,河南郑州450002

出　　处：《郑州轻工业学院学报（自然科学版）》2012年第5期51-54,共4页Journal of Zhengzhou University of Light Industry:Natural Science

摘　　要：以1,4-丁二醇水溶液为溶剂,采用高沸醇溶剂法从烟梗中提取木质素.其最佳提取条件为:烟梗原料50 g(干质量),采用1,4-丁二醇水溶液(V(醇)∶V(水)=9∶1),固液比(g∶mL)为1∶10,加入少量浓H2SO4作为催化剂,在220℃下对烟梗进行蒸煮2 h,木质素收率最高.采用紫外光谱和红外光谱对其结构进行表征,结果表明,高沸醇溶剂法提取的烟梗木质素具有木质素类化合物的典型结构特征.Lignin was extracted from the tobacco stem with aqueous solution of 1,4-butanediol as extracting reagent by high boiling extraction. The best extracting conditions were as follows：50 g desiccated tobacco stem, the volume ratio of 1,4-butanediol： water 9： 1, the solid-liquid ratio （ g： mL） 1 ： 10, a small amour of concentrated H2SO4 as catalyst, the extraction temperature 220 ℃, reaction time 2 h, and the yield was the highest. The chemical structure of the tobacco stem lignin was characterized by UV and FTIR. The results showed that lignin from tobacco stem using high boiling solvent had the typical characteristics of lignin compounds.

关 键 词：高沸醇溶剂法 1 4-丁二醇 烟梗 木质素 

分 类 号：TS411[农业科学—烟草工业]