羧基化柚子皮吸附材料的制备  

Preparation of Carboxylated Pomelo Peel Adsorbents

作　　者：姜梦 王斌 赵节昌[1] 陈尚龙[1] JIANG Meng;WANG Bin;ZHAO Jiechang;CHEN Shanglong(College of Food and Biological Engineering,Xuzhou University of Technology,Xuzhou 221018,China)

机构地区：[1]徐州工程学院食品与生物工程学院,江苏徐州221018

出　　处：《食品安全导刊》2023年第31期139-142,共4页China Food Safety Magazine

基　　金：江苏省高等学校大学生创新创业训练计划项目(202211998083Y)。

摘　　要：本文以柚子皮为原料,利用氢氧化钠将柚皮中甲酯化的羧基水解成羧酸,再利用甘氨酸与柚子皮表面基团反应,将甘氨酸嫁接到柚子皮表面,使改性后的柚子皮表面含有大量的羧基,得到羧基化柚子皮吸附材料。通过单因素试验和正交试验优化得到羧基化柚子皮吸附材料最佳制备条件,即甘氨酸添加量16 mmol,次磷酸钠添加量14 mmol,反应时间4 h,反应温度110℃,且反应时间影响显著,其他3个因素影响不显著。Using pomelo peels as raw material,the methyl esterified carboxylic groups in pomelo peels were hydrolyzed into carboxylic acids with sodium hydroxide,and then the glycines reacted with the surface groups of pomelo peels to graft glycines onto the surface of pomelo peels.The carboxylated pomelo peel adsorbents containing a large amount of carboxyl groups were obtained.The optimum preparation conditions of the carboxylated pomelo peel adsorbents were optimized by single factor test and orthogonal test,which is the addition amount of glycine 16 mmol,the addition amount of sodium hypophosphite 14 mmol,the reaction time 4 h,and the reaction temperature was 110℃.The effect of reaction time was significant,while the other three factors were not significant.

关 键 词：羧基 柚子皮 吸附材料 

分 类 号：TS209[轻工技术与工程—食品科学] TQ424[轻工技术与工程—食品科学与工程]