高温液相水耦合湿磨预处理酶水解玉米秸秆的研究  

PRETREATMENT OF CORN STOVER FOR ENZYME HYDROLYSIS USING HIGH TEMPERATURE LIQUID WATER FOLLOWED BY WET-MILLING

作　　者：刘启予 李文志[1] 李自红[1] 

机构地区：[1]中国科学技术大学热科学和能源工程系,合肥230026

出　　处：《太阳能学报》2016年第5期1290-1294,共5页Acta Energiae Solaris Sinica

基　　金：科学院重点部署项目(KGZD-EW-304-2);科学院天然气水合物重点实验室优先资助项目(CX2090130020);国家重点基础研究发展(973)计划(2012CB215302)

摘　　要：以酶水解玉米秸秆获得高葡萄糖收率为目标,通过实验研究高温液相水耦合湿法打磨预处理技术对葡萄糖产率的影响。研究结果表明:将200℃,40 min条件下高温液相水预处理的玉米秸秆再湿磨预处理,经15 FPU/g的纤维素酶水解得到的葡萄糖收率高达83.1%。同时,以5 FPU/g的纤维素酶处理时湿磨效果更为明显,葡萄糖收率由湿磨前的58.4%上升至湿磨后的70.7%。In order to acquire a high glucose recovery from enzymatic hydrolysis, the experiment using high temperature liquid water followed by wet-milling pretreatment was investigated. The result indicated that after pretreated by high temperature liquid water at 200 ℃ for 40 min followed by wet-milling, 83.1% glucose recovery was acquired at the enzyme dosage of 15 FPU/g. The effect of wet-milling pretreatment was much more obvious when the enzyme loading at 5 FPU/g, and glucose recovery increased from 58.4% to 70.7% after wet-milling pretreatment.

关 键 词：高温液相水 湿法打磨 预处理 酶水解 

分 类 号：TK6[动力工程及工程热物理—生物能]