Material conversion and application of cellulosic materials by microwave irradiation in the presence of poly acids

在本研究中，它被发现，微波辐射纤维素在钨钨酸的存在下，得到葡萄糖（直接糖化），具有很高的效率。 研究了钨酸等杂多酸存在下，晶体结构和溶剂对微波直接糖化的影响。 水和乙醇的混合溶剂可以进行直接糖化，葡萄糖得率高达80%。 钨硅酸预处理是提高葡萄糖产率的有效方法。 钨硅酸存在下纤维素的微波直接糖化强烈地依赖于钨硅酸结晶中的水的量及其特性。 结果表明，在适宜的条件下，可以获得极高的葡萄糖产率。 纤维素直接糖化为葡萄糖的最高收率可达99%。

In the present study, it is discovered that microwave irradiation to cellulose in the presence of tungstosilicic acid gave glucose (direct saccharification) with highly efficiency. The effects of crystal structure as well as solvent onto direct saccharification by microwave irradiation in the presence of hetero-poly acids such as tungstosilicic acid were investigated. The mixed solvent of water and ethanol could proceed the direct saccharification with highly glucose yield of 80%. The pretreatment on tungstocilicic acid is effective to improve the glucose yield. The direct saccharification of cellulose by the microwave irradiation in the presence of tungstocilicic acid depends strongly on the amount of water and its characteristics in the crystalline of tungstocilicic acid. Thus, it was found that the extremely high glucose yield can be achieved when the suitable condition was adopted. The highest yield of direct saccharification from cellulose to glucose reached 99%.