木质纤维素稀酸糖化研究初探  

The Elementary Research on Ligno-cellulose Saccharification under Diluted Acid

作　　者：伯永科[1] 崔海信[1] 蔡鸿昌[1] 刘琪[1] 

机构地区：[1]中国农业科学院农业环境与可持续发展研究所,北京100081

出　　处：《中国农业科技导报》2007年第6期105-109,共5页Journal of Agricultural Science and Technology

基　　金：国家重点基础研究规划973计划项目(2004CB719704)资助

摘　　要：木质纤维素的分解利用对于解决未来的能源危机与环境问题具有重大意义。以脱脂棉、滤纸模拟生物质的主要组分之一纤维素,在不同稀硫酸浓度、时间和温度反应参数下,进行纤维素水解糖化试验研究,以还原糖量为指标,考察纤维素糖化最佳反应条件。研究结果表明,在加热时间为60 min时,还原糖得率随硫酸浓度的增加而增加;在加热时间为80 min时,还原糖得率在硫酸浓度4%处出现最大值。综合硫酸及废液处理成本考虑,得到实验最佳条件为4%硫酸加热80 min。The decomposition and utilization of ligno-eellulose is of great significance in overcoming future energy crisis and environment problems. This paper simulates the main component of biomass-eellulose with pledget and the filter paper. The experiment on the ligno-eellulose saeeharifieation is carried out under different sulfur acid concentration, reaction time and reaction temperature. And we try to find the best reaction condition taking reducing sugar as target. The results indicate that the yield of reducing sugar increases with the increase of sulfur acid concentration when reaction time is 60 minutes. And it obtains the best value when reaction time increases to 80 minutes and sulfur acid concentration is 4%. Considering the cost of sulfur acid and the treatment of waste liquid ,we choose 4% sulfur acid concentration and 80 minutes of reaction time as the best experiment condition.

关 键 词：脱脂棉 滤纸 硫酸 还原糖 纤维素 

分 类 号：S216.2[农业科学—农业机械化工程]