竹笋壳纤维组分的组合分离技术研究  

Study on Combinatorial Separation of Hemicellulose,Lignin and Cellulose of Bamboo Shoots Shell Fibrin

作　　者：谢涛[1] 陈佩[1] 

机构地区：[1]湖南工程学院化学化工系,湖南湘潭411104

出　　处：《湖南工程学院学报（自然科学版）》2008年第2期72-75,共4页Journal of Hunan Institute of Engineering(Natural Science Edition)

基　　金：湖南工程学院博士启动基金资助项目(C7006)

摘　　要：对竹笋壳纤维中半纤维素、纤维素和木质素的组合分离技术进行了初步研究.实验结果表明:较好的稀酸水解条件为:纤维颗粒度80目,稀硫酸浓度3%,液固比100∶1(v/w),温度70℃,时间10h;酸处理竹笋纤维无水乙醇提取的较优条件为:先将酸处理竹笋纤维在-20℃反复冷冻-解冻2次,再按20∶1(液固比)的比例加入无水乙醇,在80℃下提取10 h.在确定的酸解和醇提条件下,能较好地实现半纤维素、木质素和纤维素的分离.The combinatorial separation of hemicellulose, lignin and cellulose of BSSF is primarily studied. The results demonstrated that the diluted aci＆hydrolyzed conditions are BSSF granule at 80 mesh, ratio of liquid to solid at 100 ： 1 （v/w） , diluted acid concentration at 3 %, hydrolyze temperature at 70℃, and hydrolyze time at 10 h. The better anhydrous ethanol extraction conditions are that the ratio of solid to liquid, extraction temperature, extraction time and freeze-thawed frequency （-20℃） are 1 ： 20 （w/v）, 80℃, 10 h and 2 times, respectively. At the determined dilute acid hydrolysis and anhydrous ethanol extraction conditions, the separation of hemicellulose, lignin and cellulose of BSSF can be efficiently achieved

关 键 词：竹笋壳纤维 纤维素 木质素 半纤维素 组合分离 

分 类 号：S216.2[农业科学—农业机械化工程]