碳基固体酸预处理结合酶解糖化玉米芯的研究  

SACCHARIFICATION OF CORNCOB BY CARBON-BASED SOLID ACID PRETREATMENT AND SUBSEQUENT ENZYMATIC HYDROLYSIS

作　　者：卢思 王琼[1] 梁翠谊[1] 亓伟[1] 袁振宏[1] 蓝平[2] Lu Si;Wang Qiong;Liang Cuiyi;Qi Wei;Yuan Zhenhong;Lan Ping(Guangzhou Institute of Energy Conversion,Chinese Academy of Sciences,CAS Key Laboratory of Renewable Energy,Guangzhou 510640,China;Guangxi Key Laboratory of Polysaccharide Materials and Modification,Guangxi University for Nationalities,Nanning 530008,China)

机构地区：[1]中国科学院广州能源研究所,中国科学院可再生能源重点实验室,广州510640 [2]广西民族大学广西多糖材料与改性重点实验室,南宁530008

出　　处：《太阳能学报》2022年第5期372-376,共5页Acta Energiae Solaris Sinica

基　　金：国家自然科学基金(51676193,51861145103);广西多糖材料与改性重点实验室开放基金(GXPSMM18ZD-01)。

摘　　要：以自合成的木质素磺酸钠基固体酸(Sl-C-S-H_(2)O_(2))为催化剂,并耦合纤维素酶实现玉米芯的两步水解建立糖平台。考察预处理条件对木糖收率的影响,最高木糖收率可达83.4%;在国产纤维素酶的作用下,48 h葡萄糖收率即可达92.6%,两步反应的总还原糖收率达88.1%。In this work,the hydrolysis of corncob was combined with pretreatment by self-synthesized carbon-based solid acid catalyst and subsequent enzymatic hydrolysis of treated residue by cellulase.Through the optimization of the pretreatment reaction condition,the highest xylose yield of 83.4%was obtained.Then,the treated residue was enzymatic hydrolysis by domestic cellulose with the glucose yield of 92.6%was obtained at 48 h and the total yield of reducing sugar up to 88.1%was obtained within these two-step hydrolysis process.

关 键 词：生物质 糖化 酶解 碳基固体酸 预处理 

分 类 号：TK6[动力工程及工程热物理—生物能]