| Adsorption Characteristics of (-)-Epigallocatechin Gallate and Caffeine in the Extract of Waste Tea on Macroporous Adsorption Resins Functionalized with Chloromethyl, Amino, and Phenylamino Groups | |
| Department | 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 |
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)
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| 2012 | |
| Source Publication | Journal of Agricultural and Food Chemistry
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| ISSN | 0021-8561 |
| Volume | 60Issue:6Pages:1555-1566 |
| Abstract | 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. |
| Keyword | (-)-epigallocatechin Gallate Caffeine Waste Tea Macroporous Adsorption Resin Adsorption Isotherm Adsorption Kinetics |
| Subject Area | 分析化学与药物化学 |
| DOI | 10.1021/jf204710h |
| Funding Organization | the National Natural Sciences Foundation of China (NSFC No. 20974116);the “Hundred Talents Program” of the Chinese Academy of Sciences (CAS) |
| Indexed By | SCI |
| If | 2.906 |
| Language | 英语 |
| Funding Project | 药物工艺标准研究组 |
| compositor | 第一作者单位 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/4436 |
| Collection | 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 |
| Corresponding Author | Di DL(邸多隆) |
| Affiliation | 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 |
| Recommended Citation 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. |
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| File Name/Size | DocType | Version | Access | License | ||
| Adsorption Character（345KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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