天然产物研究与开发 ›› 2023, Vol. 35 ›› Issue (2): 302-309.doi: 10.16333/j.1001-6880.2023.2.014

• 开发研究 • 上一篇    下一篇

固定化白桦酸亲和整体柱的制备方法及其应用

黄小玲1,杨鸿雁2,单紫轩2,袁英才2,汪锦才1,赖   亮1,刘   正2,郭嘉亮1,2*   

  1. 1 暨南大学药学院,广州 510632;2 佛山科学技术学院,佛山 528000
  • 出版日期:2023-02-28 发布日期:2023-03-02
  • 基金资助:
    国家自然科学基金(81872832,82173781);广东省基础与应用基础研究基金自然科学基金(2019A1515010806);广东省教育厅重点领域专项(2020ZDZX2057)

Preparation and application of a betulinic acid functionalized affinity monolithic column

HUANG Xiao-ling1,YANG Hong-yan2,SHAN Zi-xuan2,YUAN Ying-cai2,WANG Jin-cai1,LAI Liang1,LIU Zheng2,GUO Jia-liang1,2*   

  1. 1Pharmacy College,Jinan University,Guangzhou 510632,China; 2 Foshan University,Foshan 528000,China
  • Online:2023-02-28 Published:2023-03-02

摘要:

探究固定化天然产物白桦酸衍生物制备整体色谱柱的方法及应用。以天然活性小分子白桦酸衍生物3,23-O-二乙酰基-28-白桦酸胺乙基酰胺(EDA-BA)为配体,甲基丙烯酸缩水甘油酯(GMA)为单体,乙二醇二甲基丙烯酸酯(EDMA)为交联剂,正丙醇和1,4-丁二醇为生孔剂,偶氮二异丁腈(AIBN)为引发剂,通过原位聚合反应一锅法制备而成固定化白桦酸的整体柱poly(GMA-EDA-BA-co-EDMA);通过元素分析、扫描电镜、微径液相等手段对整体柱进行表征。液相色谱的条件下用于蛋白质的分离分析研究,发现除了α-葡萄糖苷酶,其他四种蛋白质和酶(包括胰蛋白酶、牛血清白蛋白、人血清白蛋白以及细胞色素C)在该柱上无特异性吸附,提示了该整体柱具有一定的选择性。研究表明,“一锅法”可应用于固定化天然产物单体化合物分子的整体柱的制备。

关键词: 天然产物, 白桦酸, 整体柱, 液相色谱, 一锅法制备

Abstract:

To investigate the preparation method and application of immobilized betulinic acid (BA) derivatives in monolithic chromatography columns.The monolithic column poly (GMA-EDA-BA-co-EDMA) was prepared with a one-pot in situ copolymerizations of the ligand ethylenediamine-betulinic acid (EDA-BA),the monomer glycidyl methacrylate (GMA),the cross-linker ethylene glycol dimethacrylate (EDMA),the porogen (n-propanol/1,4-butanediol),and initiator 2,2′-azobisisobutyronitrile (AIBN),under optimized polymerization conditions.The columns were characterized by elemental analysis,scanning electron microscopy,and micro-HPLC.The result showed that most of the tested proteins and enzymes,including trypsin,bovine albumin,human serum albumin,and cytochrome C,have no retention in this column apart from α-glucosidase,which the resulted monolithic column had a selective affinity to α-glucosidase.It was shown that the "one-pot" method can be well applied to the preparation of monolithic columns for the immobilization of natural molecules.

Key words: natural products, betulinic acid, monolithic column, liquid chromatography, one-pot preparation

中图分类号:  R284.2 Q503