表面分子印迹技术在分离桂枝茯苓胶囊中PGG的应用(1)
[摘要]五没食子酰葡萄糖(1,2,3,4,6-五-O-没食子酰葡萄糖,PGG)是桂枝茯苓胶囊中的一个主要活性成分,具有多种生物学与药理学活性,但其传统的分离纯化工艺较复杂,效率低,溶剂用量大,污染环境,而分子印迹技术(molecular imprinting technique, MIT)是近年来发展起来的一种新的分子识别技术,其制备的分子印迹聚合物具有特异性结合位点,对目标分子的分离有较高的选择吸附性,能克服以上传统分离技术的缺点。该研究以PGG为模板,采用分子印迹技术制备PGG表面分子印迹聚合物(surface molecularly imprinted polymer,SMIP),并对其吸附性能进行了研究,同时以该聚合物为填料自制色谱柱,从桂枝茯苓胶囊甲醇提取物中分离制备PGG,经HPLC检测质量分数达90.2%。该方法可用于从桂枝茯苓胶囊复方中快速大量制备PGG,有利于减少中药复方分离过程中有机溶剂的使用,环境友好,且操作简便,为中药及复方活性成分的分离纯化提供了一种新的思路和方法。
[关键词]分子印迹技术;PGG;桂枝茯苓胶囊;表面分子印迹聚合物
, 百拇医药
Application of molecularly imprinted technology for separation
of PGG from Guizhi Fuling capsule
SONG Ya-ling 1,2,3, WANG Xue-jing1,2,3, NI Fu-yong 1,2,3, GU Rui1,2,3, ZHAO Yi-wu1,2,3,HUANG Wen-zhe1,2,3, WANG Zhen-zhong1,2,3, XU Xiao-jie/1, XIAO Wei1,2,3*
(1.Jiangsu Kanion Pharmaceutical Co., Ltd., Lianyungang 222001, China;
2.State Key Laboratory of New-tech for Chinese Medicine Pharmaceutical Process, Lianyungang 222001, China;
, 百拇医药
3.The Key Laboratory for the New Technique Research of Traditional Chinese Medicine
Extraction and Purification, Lianyungang 222001, China;
4.College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China)
[Abstract]1,2,3,4,6-penta-O-galloyl-D-glucose(PGG) is one of the main active compounds of Guizhi Fuling capsule. Molecularly imprinted polymers (MIP) have high affinity toward template molecules synthesized by molecularly imprinted technology for its specific combined sites, which can overcome the shortcoming of traditional separation methods, such as complex operation, low efficiency, using large quantity of solvent and environmental pollution. In this paper, surface molecularly imprinted polymer (SMIP) was prepared by surface imprinting with PGG as the template molecule. Its adsorption capacity was measured by the scatchard equation. The separation of PGG from Guizhi Fuling capsule at preparatived scale was achieved with molecularly imprinted polymer as stationary phase and the purity was 90.2% by HPLC. This method can be used to prepare PGG from Guizhi Fuling capsule with large capacity and is easy to operate. It provides a new method for efficient separation and purification for other natural products.
, 百拇医药
[Key words]molecularly imprinted technology; PGG; Guizhi Fuling capsule; surface molecularly imprinted polymer
doi:10.4268/cjcmm20150605
桂枝茯苓胶囊由桂枝、茯苓、牡丹皮、赤芍、桃仁5味中药组成,具有活血化瘀、祛痰利水、消症化积之功效。临床上常用于卵巢囊肿、子宫内膜异位症、子宫肌瘤、慢性盆腔炎、痛经等妇科血瘀证的治疗[1]。为了阐明经典方剂治疗疾病的物质基础,已有研究对桂枝茯苓胶囊复方的化学成分进行了报道[1-2],已经从桂枝茯苓胶囊中分离鉴定化合物60余个,然而由于复方作为一个有机整体,所含成分复杂,有效成分与杂质没有明确的划分,化学成分间的相互作用不明确,而这些化合物的分离过程复杂,大部分化合物制备的量较小,有的甚至毫克级,这给进一步的药理药效研究带来了很大的困难,五没食子酰葡萄糖(1,2,3,4,6-五-O-没食子酰葡萄糖,PGG)就是其中之一。PGG作为桂枝茯苓胶囊指纹图谱中的一个主要色谱峰[3],属于多酚鞣酸单体化合物,具有多种生物学与药理学活性,包括抗炎、抗氧化、细胞保护、抗糖尿病等[4-7],尤其近年来它的抗肿瘤作用越来越受到关注。因此,有必要对其进行深入研究,这就需要获得大量PGG对照品,而采用传统的植物化学方法对全方进行化学成分的提取、分离、纯化,不仅操作繁琐、耗费大量有机溶剂、周期长,且产率低,因此迫切需要开发一种有效、简便、选择性高的分离新技术来解决这种高成本、低收率问题,分子印迹技术恰恰满足这一要求。, 百拇医药(宋亚玲 王雪晶 倪付勇 顾睿 赵祎武 黄文哲 王振中 徐筱杰 萧伟)
[关键词]分子印迹技术;PGG;桂枝茯苓胶囊;表面分子印迹聚合物
, 百拇医药
Application of molecularly imprinted technology for separation
of PGG from Guizhi Fuling capsule
SONG Ya-ling 1,2,3, WANG Xue-jing1,2,3, NI Fu-yong 1,2,3, GU Rui1,2,3, ZHAO Yi-wu1,2,3,HUANG Wen-zhe1,2,3, WANG Zhen-zhong1,2,3, XU Xiao-jie/1, XIAO Wei1,2,3*
(1.Jiangsu Kanion Pharmaceutical Co., Ltd., Lianyungang 222001, China;
2.State Key Laboratory of New-tech for Chinese Medicine Pharmaceutical Process, Lianyungang 222001, China;
, 百拇医药
3.The Key Laboratory for the New Technique Research of Traditional Chinese Medicine
Extraction and Purification, Lianyungang 222001, China;
4.College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China)
[Abstract]1,2,3,4,6-penta-O-galloyl-D-glucose(PGG) is one of the main active compounds of Guizhi Fuling capsule. Molecularly imprinted polymers (MIP) have high affinity toward template molecules synthesized by molecularly imprinted technology for its specific combined sites, which can overcome the shortcoming of traditional separation methods, such as complex operation, low efficiency, using large quantity of solvent and environmental pollution. In this paper, surface molecularly imprinted polymer (SMIP) was prepared by surface imprinting with PGG as the template molecule. Its adsorption capacity was measured by the scatchard equation. The separation of PGG from Guizhi Fuling capsule at preparatived scale was achieved with molecularly imprinted polymer as stationary phase and the purity was 90.2% by HPLC. This method can be used to prepare PGG from Guizhi Fuling capsule with large capacity and is easy to operate. It provides a new method for efficient separation and purification for other natural products.
, 百拇医药
[Key words]molecularly imprinted technology; PGG; Guizhi Fuling capsule; surface molecularly imprinted polymer
doi:10.4268/cjcmm20150605
桂枝茯苓胶囊由桂枝、茯苓、牡丹皮、赤芍、桃仁5味中药组成,具有活血化瘀、祛痰利水、消症化积之功效。临床上常用于卵巢囊肿、子宫内膜异位症、子宫肌瘤、慢性盆腔炎、痛经等妇科血瘀证的治疗[1]。为了阐明经典方剂治疗疾病的物质基础,已有研究对桂枝茯苓胶囊复方的化学成分进行了报道[1-2],已经从桂枝茯苓胶囊中分离鉴定化合物60余个,然而由于复方作为一个有机整体,所含成分复杂,有效成分与杂质没有明确的划分,化学成分间的相互作用不明确,而这些化合物的分离过程复杂,大部分化合物制备的量较小,有的甚至毫克级,这给进一步的药理药效研究带来了很大的困难,五没食子酰葡萄糖(1,2,3,4,6-五-O-没食子酰葡萄糖,PGG)就是其中之一。PGG作为桂枝茯苓胶囊指纹图谱中的一个主要色谱峰[3],属于多酚鞣酸单体化合物,具有多种生物学与药理学活性,包括抗炎、抗氧化、细胞保护、抗糖尿病等[4-7],尤其近年来它的抗肿瘤作用越来越受到关注。因此,有必要对其进行深入研究,这就需要获得大量PGG对照品,而采用传统的植物化学方法对全方进行化学成分的提取、分离、纯化,不仅操作繁琐、耗费大量有机溶剂、周期长,且产率低,因此迫切需要开发一种有效、简便、选择性高的分离新技术来解决这种高成本、低收率问题,分子印迹技术恰恰满足这一要求。, 百拇医药(宋亚玲 王雪晶 倪付勇 顾睿 赵祎武 黄文哲 王振中 徐筱杰 萧伟)