Adsorption Characteristics of (-)-Epigallocatechin Gallate and Caffeine in the Extract of Waste Tea on Macroporous Adsorption Resins Functionalized with Chloromethyl, Amino, and Phenylamino Groups

CORC > 兰州化学物理研究所 > 中国科学院兰州化学物理研究所 > 中科院西北特色植物资源化学重点实验室/甘肃省天然药物重点实验室

	Adsorption Characteristics of (-)-Epigallocatechin Gallate and Caffeine in the Extract of Waste Tea on Macroporous Adsorption Resins Functionalized with Chloromethyl, Amino, and Phenylamino Groups
	Liu YF(刘永峰)1,2,4 ; Bai QQ(白清清)1,2,5; Lou S(娄嵩)1,2,4; Di DL(邸多隆)1,2,3 ; Li JT(李金田)5; Guo M(郭玫)5; Di DL(邸多隆)
刊名	Journal of Agricultural and Food Chemistry
	2012
卷号	60 期号:6 页码:1555-1566
关键词	(-)-Epigallocatechin gallate caffeine waste tea macroporous adsorption resin adsorption isotherm adsorption kinetics
ISSN号	0021-8561
通讯作者	邸多隆
英文摘要	According to the Friedel-Crafts and amination reaction, a series of macroporous adsorption resins (MARs) with novel structures were synthesized and identified by the Brunauer-Emmett-Teller (BET) method and Fourier transform infrared (FTIR) spectra, and corresponding adsorption behaviors for (-)-epigallocatechin gallate (EGCG) and caffeine (CAF) extracted from waste tea were systemically investigated. Based on evaluation of adsorption kinetics, the kinetic data were well fitted by pseudo-second-order kinetics. Langmuir, Freundlich, Temkin-Pyzhev, and Dubinin-Radushkevich isotherms were selected to illustrate the adsorption process of EGCG and CAF on the MARs. Thermodynamic parameters were adopted to explain in-depth information of inherent energetic changes associated with the adsorption process. The effect of temperature on EGCG and CAF adsorption by D101-3 was further expounded. Van der Waals force, hydrogen bonding, and electrostatic interaction were the main driving forces for the adsorption of EGCG and CAF on the MARs. This study might provide a scientific reference point to aid the industrial large-scale separation and enrichment of EGCG from the extracts of waste tea using modified MARs.
学科主题	分析化学与药物化学
收录类别	SCI
资助信息	the National Natural Sciences Foundation of China (NSFC No. 20974116);the “Hundred Talents Program” of the Chinese Academy of Sciences (CAS)
语种	英语
WOS记录号	WOS:000300213300029
公开日期	2013-12-04
内容类型	期刊论文
源URL	[http://210.77.64.217/handle/362003/4436]
专题	兰州化学物理研究所_中科院西北特色植物资源化学重点实验室/甘肃省天然药物重点实验室
通讯作者	Di DL(邸多隆)
作者单位	1.Chinese Acad Sci, Lanzhou Inst Chem Phys, Key Lab Chem NW Plant Resources, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Lanzhou Inst Chem Phys, Key Lab Nat Med Gansu Prov, Lanzhou 730000, Peoples R China 3.Chinese Acad Sci, Ctr Resource Chem & New Mat, Lanzhou Inst Chem Phys, Qingdao 266100, Peoples R China 4.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 5.Gansu Coll Tradit Chinese Med, Dept Pharm, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Liu YF,Bai QQ,Lou S,et al. Adsorption Characteristics of (-)-Epigallocatechin Gallate and Caffeine in the Extract of Waste Tea on Macroporous Adsorption Resins Functionalized with Chloromethyl, Amino, and Phenylamino Groups[J]. Journal of Agricultural and Food Chemistry,2012,60(6):1555-1566.
APA	Liu YF.,Bai QQ.,Lou S.,Di DL.,Li JT.,...&邸多隆.(2012).Adsorption Characteristics of (-)-Epigallocatechin Gallate and Caffeine in the Extract of Waste Tea on Macroporous Adsorption Resins Functionalized with Chloromethyl, Amino, and Phenylamino Groups.Journal of Agricultural and Food Chemistry,60(6),1555-1566.
MLA	Liu YF,et al."Adsorption Characteristics of (-)-Epigallocatechin Gallate and Caffeine in the Extract of Waste Tea on Macroporous Adsorption Resins Functionalized with Chloromethyl, Amino, and Phenylamino Groups".Journal of Agricultural and Food Chemistry 60.6(2012):1555-1566.