加压氨解预处理玉米秸秆糖化工艺研究  

Ammonia-pretreatment of Corn Stalks under Pressure in Saccharification Process

作　　者：李静[1,2] 晏飞来[2] 杨力[2] 马雪娇[2] 

机构地区：[1]重庆水利电力职业技术学院,重庆永川402160 [2]西南大学资源环境学院,重庆400716

出　　处：《南方农业》2011年第5期66-69,共4页South China Agriculture

摘　　要：以玉米秸秆糖化为目的,研究加压氨解预处理对玉米秸秆还原糖产量和脱除木质素的影响,以确定其最佳工艺条件。结果表明:影响加压氨解预处理的主要因素是氨水浓度和粒径,其最优条件为氨水浓度15%,时间6min,压力0.075MPa,基质浓度150g/L,粒径1mm,可以获得1.74%的还原糖得率和43.30%的木质素去除率。For the purpose of saccharification of corn stalks, the effects of ammonia-pretreatment under pressure on the reducing sugar yield and lignin removal rate of corn stalks were conducted. The results indicated that the main effect factors on ammonia-pretreatment of corn stalks under pressure were substrate concentration and corn stalks size. The optimum conditions were ammonia concentration 15%, time is 6min, the pressure is 0.075MPa, substrate concentration is 150 g/L, and stalk diameter is lmm, the reducing sugar yield is 1.74%, and lignin removal rate is 43.30%.

关 键 词：玉米秸秆 加压氨解 还原糖得率 木质素去除率 

分 类 号：X7[环境科学与工程—环境工程] S2[农业科学—农业工程]