1,4-二氧六环―盐酸预处理对麦秆化学成分的影响  

Effect of 1, 4-Dioxane-Hydrochloric Acid Pretreatment on the Chemical Composition of Wheat Straw

作　　者：冒江云[1] 杨林峰[1] 杜晶[1] 金永灿[1] 

机构地区：[1]南京林业大学江苏省制浆造纸科学与技术重点实验室,江苏南京210037

出　　处：《纤维素科学与技术》2013年第1期16-22,共7页Journal of Cellulose Science and Technology

基　　金：引进国际先进林业科学技术项目(2012-4-18);国家自然科学基金资助项目(31070512);江苏省高校优势学科建设工程资助项目

摘　　要：用1,4-二氧六环―盐酸溶液对麦秆原料进行预处理,考察了预处理时间和盐酸浓度对原料化学成分含量的影响。研究结果表明,1,4-二氧六环―盐酸预处理可有效脱除麦秆中的木质素而保留绝大部分葡聚糖。预处理后浆料中木质素的脱除率随着预处理时间的延长和盐酸用量的增加而提高,高聚糖的降解率也有所增加,其中半纤维素的降解较为严重,而纤维素的降解率小于2%。The effects of 1, 4-dioxane-hydrochloric acid pretreatment on the chemical compositions of wheat straw were investigated in this paper. The results illustrate that the dioxane-hydrochloric acid pretreatment can significantly remove the lignin while keep most of the glucan. The lignin removal and degradation of polysaccharides are enhanced with the increase of pretreatment time and HCI concentration, of which hemicellulose act more sensitive than cellulose. The loss of glucan was less than 2%.

关 键 词：麦秆 1 4-二氧六环-盐酸 预处理 化学成分 

分 类 号：TQ352.62[化学工程]