FeCl_(3)催化预处理玉米芯制备戊聚糖的研究  

Preparation of pentosan from corncob by FeCl_(3) catalysis pretreatment

作　　者：杨任辉 李金隆 丁长河[3] 游艳芝 YANG Ren-hui;LI Jin-long;DING Chang-he;YOU Yan-zhi(College of Life Sciences,Yantai University,Yantai 264005,Shandong,China;College of Environmental and Natural Resources,Zhejiang University of Science and Technology,Hangzhou 310023,Zhejiang,China;College of Food Science and Technology,Henan University of Technology,Zhengzhou 450001,Henan,China)

机构地区：[1]烟台大学生命科学学院,山东烟台264005 [2]浙江科技学院环境与资源学院,浙江杭州310023 [3]河南工业大学粮油食品学院,河南郑州450001

出　　处：《粮食与油脂》2023年第10期30-34,共5页Cereals & Oils

基　　金：浙江科技学院科研启动基金项目(F701119M14);河南省高等学校重点科研项目(22B550002);河南工业大学自科创新基金支持项目(2020ZKCJ19)。

摘　　要：以玉米芯为原料,通过无机盐(FeCl_(3))催化法预处理玉米芯制备水溶性戊聚糖,并采用正交试验优化工艺。结果表明:各因素对戊聚糖质量浓度的影响依次为反应时间>FeCl_(3)浓度>反应温度,对戊聚糖平均聚合度的影响依次为FeCl_(3)浓度>反应温度>反应时间。综合戊聚糖质量浓度及其平均聚合度,戊聚糖最佳制备条件为FeCl_(3)浓度0.06 mol/L、反应温度140℃、反应时间30 min,在此条件下戊聚糖质量浓度为30.36 g/L、戊聚糖平均聚合度为2.03。Using corncob as raw material,water-soluble pentosan was prepared by pretreatment of corn-cob with inorganic salt(FeCl_(3))catalysis,and the process was optimized by orthogonal experiment.The results showed that the influence of various factors on the mass concentration of pentosan was in the order of reaction time>FeCl_(3)concentration>reaction temperature,and the influence on the average polymeri-zation degree of pentosan was in the order of FeCl_(3)concentration>reaction temperature>reaction time.Considering the mass concentration of pentosan and its average polymerization degree,the optimum prep-aration conditions of pentosan were as follows:FeCl_(3)concentration 0.06 mol/L,reaction temperature 140 C,reaction time 30 min.Under these conditions,the mass concentration of pentosan was 30.36 g/L,and the average polymerization degree of pentosan was 2.03.

关 键 词：玉米芯 无机盐催化 预处理 戊聚糖 工艺优化 

分 类 号：TS209[轻工技术与工程—食品科学]