稻秆于丙酮中溶解特性及其产物解析  

Analysis of characteristics and product of dissolution of rice straw in acetone

作　　者：宫贵贞[1] 曹洪 陈艳[1] 王晓辉[1] GONG Gui-zhen;CAO Hong;CHEN Yan;WANG Xiao-hui(School of Materials and Chemical Engineering,Xuzhou University of Technology,Xuzhou 221018,Jiangsu,China)

机构地区：[1]徐州工程学院材料与化学工程学院,江苏徐州221018

出　　处：《粮食与油脂》2021年第2期63-66,共4页Cereals & Oils

基　　金：中国建筑材料联合会项目(2014-M3-4);江苏省重大科技支撑项目(BE2015041);江苏省教育信息化研究课题(20172127);江苏省教育科学研究院课题(2017-R-57116);江苏省双创计划(FZ20180295);徐州工程学院培育项目(XKY2011103)。

摘　　要：将稻秆在改进的索式萃取器中用丙酮进行溶解萃取,对其溶解特性及其产物进行分析。随着时间的延长,萃取百分率呈缓慢-快速增加趋势,萃取至60 h时趋于稳定,萃取率达72%。应用气相色谱-质谱联用仪(GC/MS)检测到25种化合物,分为烃类、醇酚、醛、酮、酸及酯6类,其中醇酚含量最多,为32.981%,烃类和酸类相近,酮类最少,为1.292%。同时检测到一些含量高且有重要应用价值的化合物如鲨烯、生育酚等。Rice straw was extracted in acetone by Soxhlet extraction, and its dissolution characteristics and products were analyzed. With the extension of time, the extraction yield began to increase slowly and then accelerated, and the extraction rate tended to be stable for 60 h, reaching 72 %. 25 kinds of compounds were detected, which were mainly composed of hydrocarbons, alcohols, phenols, aldehydes, ketones, acids and esters. The content of alcohols and phenols was 32. 981 % at most, hydrocarbons and acids were in similar content, and ketones was 1. 292 % at least. Some compounds with high content and wide application value such as squalene and tocopherol were detected.

关 键 词：稻秆 丙酮 溶解 产物 分析 

分 类 号：TS210.1[轻工技术与工程—粮食、油脂及植物蛋白工程]