摘要
本研究以不同品种水稻秸秆为原料,测定分析了三大主要组分纤维素、半纤维素和木质素含量及理化特性的差异,并分析对比了经碱预处理后酶解及直接酶解的产糖率差异。利用X-射线衍射仪测定分析了结晶度和晶粒尺寸的异同,红外光谱仪定性评估了特定基团的差异,扫描电镜观察分析了表面形态结构的差异。综合考虑理化特性和酶解产糖率结果,与a(常规水稻黄华占)相比,5种不同品种的超级杂交水稻秸秆中,b(杂交水稻Y两优1)、c(杂交水稻隆两优2010)和f(杂交水稻Y两优143)三个品种的秸秆材料比较适合作为酶解产糖的原材料。
In this experiment,the three key components including cellulose,hemicellulose and lignin and the physicochemical properties of different kinds of rice straw were measured and analyzed.The degree of crystallinity and crystallite dimension were measured and analyzed by X-ray diffraction.The difference of specific groups were evaluated qualitatively.The difference of surface morphology were observed by scanning electron microscopy.The efficiency of enzymatic saccharification directly or after alkali pretreatment indirectly were analyzed and compared.Compared to the a(conventional rice huang hua zhan),in five different kinds of super rice straws,it comes to the conclusion that the three varieties of b(hybrid rice Y liang you 1)、c(hybrid rice long liang you 2010)and f(hybrid rice Y liang you 143)were appropriate for enzymatic saccharification on the basis of the result of physicochemical properties and enzymatic saccharification.
作者
苏小军
王康
李清明
王锋
张春艳
SU Xiaojun;WANG Kang;LI Qingming;WANG Feng;ZHANG Chunyan(Hunan Agricultural University,College of Food Science and Technology,Changsha 410128,Hunan,China;Hunan Agricultural University,Hunan Engineering Laboratory for Alcohol Fuels from Biomass,Changsha 410128,Hunan,China;Hunan Agricultural University,Hunan Collaborative Innovation for Utilization of Botanical Functional Ingredients,Changsha 410128,Hunan,China)
出处
《激光生物学报》
CAS
2019年第1期58-63,共6页
Acta Laser Biology Sinica
基金
湖南省科技重大专项项目(2015NK1001-4)
湖南作物种质创新与资源利用重点实验室科学基金开放项目(15KFXM19)
关键词
水稻秸秆
理化特性
酶解
还原糖
rice straw
physicochemical properties
enzymatic hydrolysis
reducing sugar
