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Isolation of Epigallocatechin Gallate from Plant Extracts with Metallic Pivot-Assisted Dummy Imprinting
Li, XY (Li, Xiu-Yuan); Bai, LH (Bai, Li-Hong); Huang, YP (Huang, Yan-Ping); Liu, ZS (Liu, Zhao-Sheng)
2016
Source PublicationANALYTICAL LETTERS
ISSN0003-2719
Volume49Issue:13Pages:2031-2042
Abstract

Metallic pivot-assisted dummy imprinting was used to separate epigallocatechin gallate from natural plant extracts. 4-Vinylpyridine was the functional monomer, ethylene glycol dimetacetic acidrylate the cross-linking monomer, and gallic acid the template with a mixture of 1-butyl-3-methylimidazolium tetrafluoroborate, dimethylsulfoxide, and dimethylformamide. The introduction of a metallic ion as the pivot improved the affinity and recognition of the template in the preparation of the molecularly imprinted polymer monoliths. The type of metal ion, the amount of template, and the cross-linking degree affected the retention of the template on the resulting product. The imprinted gallic acid polymer provided selective retention for epigallocatechin gallate and was used to purify the analyte from green tea with a mean recovery of 91.9% and a purity of 95.2%. The results demonstrated that gallic acid may be used as a fragmental template to prepare molecularly imprinted polymers for purifying epigallocatechin gallate.

KeywordDummy-imprinting Epigallocatechin Gallate Gallic Acid Metallic Pivot Molecularly Imprinted Polymer Solid-phase Extraction
DOI10.1080/00032719.2015.1131708
Indexed BySCI
WOS IDWOS:000380773000006
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Document Type期刊论文
Identifierhttp://ir.xjipc.cas.cn/handle/365002/4695
Collection资源化学研究室
Affiliation1.Tianjin Med Univ, Sch Pharm, Tianjin Key Lab Technol Enabling Dev Clin Therapt, Tianjin 300070, Peoples R China
2.Chinese Acad Sci, Xinjiang Tech Inst Phys & Chem, Urumqi 830011, Xinjiang, Peoples R China
3.Chinese Acad Sci, State Key Lab Basis Xinjiang Indigenous Med Plant, Xinjiang Tech Inst Phys & Chem, Urumqi 830011, Xinjiang, Peoples R China
Recommended Citation
GB/T 7714
Li, XY ,Bai, LH ,Huang, YP ,et al. Isolation of Epigallocatechin Gallate from Plant Extracts with Metallic Pivot-Assisted Dummy Imprinting[J]. ANALYTICAL LETTERS,2016,49(13):2031-2042.
APA Li, XY ,Bai, LH ,Huang, YP ,&Liu, ZS .(2016).Isolation of Epigallocatechin Gallate from Plant Extracts with Metallic Pivot-Assisted Dummy Imprinting.ANALYTICAL LETTERS,49(13),2031-2042.
MLA Li, XY ,et al."Isolation of Epigallocatechin Gallate from Plant Extracts with Metallic Pivot-Assisted Dummy Imprinting".ANALYTICAL LETTERS 49.13(2016):2031-2042.
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