高比表面极性大孔树脂的结构设计及在甜菊糖Rebaudioside D苷分离中的应用  

STRUCTURE DESIGN OF POLAR MACROPOROUS RESIN WITH HIGH SPECIFIC SURFACE AND ITS APPLICATION IN SEPARATION OF STEVIA REBAUDI

作　　者：李文佳[1] 慕峰 姜海涛 王春红[1,2] LI Wenjia;MU Feng;JIANG Haitao;WANG Chunhong(Institute of Polymer Chemistry,Key Laboratory of Functional Polymer Materials,Ministry of Education,Nankai University,Tianjin 300071,China;Nankai University Cangzhou Bohai New Area Green Chemical Industry Research Institute,Cangzhou 061000,China)

机构地区：[1]南开大学高分子化学研究所功能高分子材料教育部重点实验室,天津300071 [2]南开大学沧州渤海新区绿色化工研究院,河北沧州061000

出　　处：《离子交换与吸附》2022年第1期60-70,共11页Ion Exchange and Adsorption

摘　　要：基于高交联聚苯乙烯树脂骨架上悬挂双键的二次引发,设计合成了一类弱极性酯基功能基含量较高且兼具高比表面积的新型大孔吸附树脂,在吸附分离中表现出偶极-疏水协同作用机制,用于甜菊糖中结构相近的单体糖苷Rebaudioside D(简称RD)的分离纯化,克服了传统吸附树脂的选择性和吸附容量不能兼顾的缺点,对甜菊糖粗提物纯化后,RD苷的纯度由7.1%提高到51.2%。Based on the secondary initiation of the dangling double bonds on the highly crosslinked polystyrene resin skeleton,a new type of macroporous adsorption resin with a higher content of weakly polar ester functional groups and a high specific surface is designed and synthesized.It exhibits a dipole-hydrophobic synergistic mechanism in adsorption and separation,and is used for the separation and purification of Rebaudioside D(RD),a monomer with similar structure in stevioside,and overcomes the shortcomings that traditional adsorption resins cannot balance the selectivity and adsorption capacity.After purification of the crude stevioside extract,the purity of RD glycoside was increased from 7.1%to 51.2%.

关 键 词：吸附树脂 悬挂双键 甜菊糖 Rebaudioside D 协同作用 

分 类 号：TQ324.8[化学工程—合成树脂塑料工业] O629.13[理学—有机化学]