农业工程学报2011，Vol.27Issue(2)：387-391,5.DOI:10.3969/j.issn.1002-6819.2011.02.066
Br离子液体中微波辐射加热促进稻草秸秆酸水解制备还原糖
Microwave irradiation promoting acid hydrolysis of straw pole into reducing sugar in ionic liquid Br
摘要
Abstract
In order to study the enhancement of acid hydrolysis process of plant fiber in [Bmim]Br ionic liquid medium by the microwave irradiation heating, the microwave irradiation promoting acid hydrolysis of straw pole and preparation the reducing sugar were determined with the [Bmim]Br ionic liquid as reactive medium in this paper.The influences of ionic liquid volume, microwave power, irradiation time, sulfuric acid concentration, reaction temperature on yield of reducing sugar with acid hydrolysis of straw pole were mainly tested.The results indicated that the best condition of acid hydrolysis of straw pole into reducing sugar in microwave irradiating was 10.0％ H2SO430.0 mL, [Bmim]Br 10.0 mL,reactive temperature 85℃, irradiation time 45 min, microwave power 500 W, and the yield ratio of reducing sugar reached 22.94％ at the best condition, but the yield ratio of reducing sugar at the conventional acid hydrolysis was only 14.50％.It is clear that the yield ratio of reducing sugar in the straw pole by microwave irradiation promoting acid hydrolysis was higher than the yield ratio of reducing sugar by the conventional acid hydrolysis.So the microwave radiation could promote acid hydrolysis of plant fiber and significantly shorten the time of saccharification and raise the yield ratio of reducing sugar in the ionic liquid medium.关键词
秸秆/离子液体/微波辐射/[Bmim]Br/还原糖Key words
straw/ ionic liquids/ microwave irradiation/ [Bmim]Br/ reducing sugar分类
农业科技引用本文复制引用
杨明妮,柴连周,毕先钧..Br离子液体中微波辐射加热促进稻草秸秆酸水解制备还原糖[J].农业工程学报,2011,27(2):387-391,5.基金项目
国家自然科学基金资助项目(20663007) （20663007）
