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Jiang H, Li Z, Zhong S, Zeng Z. (-)-Gallocatechin Gallate: A Novel Chemical Marker to Distinguish Triadica cochinchinensis Honey. Foods 2024; 13:1879. [PMID: 38928820 PMCID: PMC11203108 DOI: 10.3390/foods13121879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2024] [Revised: 06/08/2024] [Accepted: 06/13/2024] [Indexed: 06/28/2024] Open
Abstract
Triadica cochinchinensis honey (TCH) is collected from the nectar of the medicinal plant T. cochinchinensis and is considered the most important honey variety in southern China. TCH has significant potential medicinal properties and commercial value. However, reliable markers for application in the authentication of TCH have not yet been established. Herein, a comprehensive characterization of the botanical origin and composition of TCH was conducted by determining the palynological characteristics and basic physicochemical parameters. Liquid chromatography tandem-mass spectrometry (LC-MS/MS) was used to investigate the flavonoid profile composition of TCH, T. cochinchinensis nectar (TCN) and 11 other common varieties of Chinese commercial honey. (-)-Gallocatechin gallate (GCG) was identified as a reliable flavonoid marker for TCH, which was uniquely shared with TCN but absent in the other 11 honey types. Furthermore, the authentication method was validated, and an accurate quantification of GCG in TCH and TCN was conducted. Overall, GCG can be applied as a characteristic marker to identify the botanical origin of TCH.
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Affiliation(s)
- Huizhi Jiang
- Honeybee Research Institute, Jiangxi Agricultural University, Nanchang 330045, China; (H.J.); (S.Z.)
- Jiangxi Province Key Laboratory of Honeybee Biology and Beekeeping, Jiangxi Agricultural University, Nanchang 330045, China
| | - Zhen Li
- College of Life Science and Resources and Environment, Yichun University, Yichun 336000, China;
| | - Shiqing Zhong
- Honeybee Research Institute, Jiangxi Agricultural University, Nanchang 330045, China; (H.J.); (S.Z.)
- Jiangxi Province Key Laboratory of Honeybee Biology and Beekeeping, Jiangxi Agricultural University, Nanchang 330045, China
| | - Zhijiang Zeng
- Honeybee Research Institute, Jiangxi Agricultural University, Nanchang 330045, China; (H.J.); (S.Z.)
- Jiangxi Province Key Laboratory of Honeybee Biology and Beekeeping, Jiangxi Agricultural University, Nanchang 330045, China
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Qian J, Zhu H, Zhang J, Zhao C, Li X, Guo H. Separation and Purification of Bamboo Leaf Flavones by Polyvinylpolypyrrolidone Adsorption. J Chromatogr Sci 2023; 61:885-891. [PMID: 37009711 DOI: 10.1093/chromsci/bmad027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 01/18/2023] [Indexed: 04/04/2023]
Abstract
In view of the adsorption performance of polyvinylpolypyrrolidone (PVPP) to flavones, the adsorption and purification of bamboo leaf flavones (BLFs) by PVPP were studied. The flavones solution was adsorbed by PVPP column chromatography, and then establish a relatively effective method for elution and purification of flavones from bamboo leaf. The optimal separation conditions of column chromatography were determined as the following: the feed concentration of 10 mg/mL, the ratio of diameter to height of 1:1.9, eluents of deionized water (21 mL) and 70% ethanol (800 mL) with a flow rate of 0.33 mL/min. The purity of flavones obtained from ethanol eluents (80-480 mL) was 96.2%. This showed that the PVPP had an ideal adsorption and purification effect on BLFs.
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Affiliation(s)
- Junqing Qian
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, China
| | - Hanxiao Zhu
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, China
| | - Jiangliu Zhang
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, China
| | - Changyan Zhao
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, China
| | - Xinchen Li
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, China
| | - Hui Guo
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, China
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Zhou Y, Chen M, Huo X, Xu Q, Wu L, Wang L. Separation of Flavonoids and Purification of Chlorogenic Acid from Bamboo Leaves Extraction Residues by Combination of Macroporous Resin and High-Speed Counter-Current Chromatography. Molecules 2023; 28:molecules28114443. [PMID: 37298918 DOI: 10.3390/molecules28114443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 05/16/2023] [Accepted: 05/19/2023] [Indexed: 06/12/2023] Open
Abstract
Flavonoids are major active small-molecule compounds in bamboo leaves, which can be easily obtained from the bamboo leaves extraction residues (BLER) after the polysaccharides extraction. Six macroporous resins with different properties were screened to prepare and enrich isoorientin (IOR), orientin (OR), vitexin (VI), and isovitexin (IVI) from BLER, and the XAD-7HP resin with the best adsorption and desorption performance was selected for further evaluation. Based on the static adsorption experiments, the experimental results showed that the adsorption isotherm fitted well with the Langmuir isotherm model, and the adsorption process was better explained by the pseudo-second-order kinetic model. After the dynamic trial of resin column chromatography, 20 bed volume (BV) of upload sample and 60% ethanol as eluting solvent was used in a lab scale-up separation, and the results demonstrated that the content of four flavonoids could be increased by 4.5-fold, with recoveries between 72.86 and 88.21%. In addition, chlorogenic acid (CA) with purity of 95.1% was obtained in water-eluted parts during dynamic resin separation and further purified by high-speed countercurrent chromatography (HSCCC). In conclusion, this rapid and efficient method can provide a reference to utilize BLER to produce high-value-added food and pharmaceutical products.
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Affiliation(s)
- Yifeng Zhou
- School of Biological and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou 310023, China
| | - Meixu Chen
- School of Biological and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou 310023, China
| | - Xinyi Huo
- School of Biological and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou 310023, China
| | - Qilin Xu
- School of Biological and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou 310023, China
| | - Linlin Wu
- School of Biological and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou 310023, China
| | - Liling Wang
- Zhejiang Academy of Forestry, Hangzhou 310023, China
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Ren Y, Zhu Y, Qi X, Yan H, Zhao Y, Wu Y, Zhang N, Ding Z, Yuan L, Liu M. Noncovalent interaction of chlorogenic acid and/or gallocatechin gallate with β-lactoglobulin: Effect on stability and bioaccessibility of complexes and nanoparticles. Lebensm Wiss Technol 2023. [DOI: 10.1016/j.lwt.2023.114493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Chemical composition and anti-inflammatory activity of water extract from black cocoa tea (Camellia ptilophylla). Food Res Int 2022; 161:111831. [DOI: 10.1016/j.foodres.2022.111831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 08/16/2022] [Accepted: 08/19/2022] [Indexed: 11/16/2022]
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Wang Y, Wang J, Wang S, Cao Z, Gu D, Wang Y, Tian J, Yang Y. An efficient method based on an inhibitor-enzyme complex to screen an active compound against lipase from Toona sinensis. Food Funct 2021; 12:10806-10812. [PMID: 34617090 DOI: 10.1039/d1fo01542g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
As a popular vegetable, Toona sinensis has a wide range of bioactivities including lipase inhibitory activity. In the present study, an efficient and rapid method using a ligand-enzyme complex was established for screening of an active compound against lipase from Toona sinensis. The ethyl acetate extract of Toona sinensis showed good lipase inhibitory activity. After incubation with lipase, one of the compounds in the extract decreased significantly while comparing the HPLC chromatograms before and after incubation, which indicated that it may be the active compound bound to lipase. Then, the compound was isolated using a Sephadex LH-20 column and identified as 1,2,3,4,6-penta-O-galloyl-β-D-glucose. The in vitro activity test showed that the compound had good inhibitory activity against lipase, and its IC50 value was 118.8 ± 1.53 μg mL-1. The kinetic experiments indicated that 1,2,3,4,6-penta-O-galloyl-β-D-glucose inhibited lipase through mixed competitive and non-competitive inhibitions. Further docking results showed that the target compound could bind to the active site of lipase stably through seven hydrogen bonds, resulting in a docking energy of -8.31 kcal mol-1. The proposed method can not only screen the lipase inhibitors from Toona sinensis quickly and effectively, but also provide an effective way for the rapid screening of active substances in natural food and plants.
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Affiliation(s)
- Yunxiao Wang
- School of Biological Engineering, Dalian Polytechnic University, 1 Qinggongyuan, Dalian 116034, China.
| | - Jifeng Wang
- School of Biological Engineering, Dalian Polytechnic University, 1 Qinggongyuan, Dalian 116034, China.
| | - Shunxin Wang
- School of Biological Engineering, Dalian Polytechnic University, 1 Qinggongyuan, Dalian 116034, China.
| | - Zengyuan Cao
- College of Marine Science and Environment, Dalian Ocean University, 52 Heishijiao Street, Dalian 116023, China.
| | - Dongyu Gu
- College of Marine Science and Environment, Dalian Ocean University, 52 Heishijiao Street, Dalian 116023, China.
| | - Yi Wang
- School of Biological Engineering, Dalian Polytechnic University, 1 Qinggongyuan, Dalian 116034, China.
| | - Jing Tian
- School of Biological Engineering, Dalian Polytechnic University, 1 Qinggongyuan, Dalian 116034, China.
| | - Yi Yang
- School of Light Industry and Chemical Engineering, Dalian Polytechnic University, 1 Qinggongyuan, Dalian 116034, China.
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Chen T, Liu Y, Wang S, Wei Y, Song Z, Yan S, Shen C, Li H, Li P, Li Y. Separation of eight phenolic compounds from the over-ground parts of Aconitum pendulum Busch by repeated injection high-speed counter-current chromatography. SEP SCI TECHNOL 2021. [DOI: 10.1080/01496395.2021.1995425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Tao Chen
- Northwest Institute of Plateau Biology, Chinese Academy of Science, Xining, R.P. China
- Savaid Medical School, University of the Chinese Academy of Sciences, Beijing, P.R. China
| | - Yongling Liu
- Food and Pharmaceutical Engineering Institute, Guiyang University, Guiyang, P.R. China
| | - Shuo Wang
- Northwest Institute of Plateau Biology, Chinese Academy of Science, Xining, R.P. China
| | - Yangfei Wei
- Northwest Institute of Plateau Biology, Chinese Academy of Science, Xining, R.P. China
- Savaid Medical School, University of the Chinese Academy of Sciences, Beijing, P.R. China
| | - Zhibo Song
- Northwest Institute of Plateau Biology, Chinese Academy of Science, Xining, R.P. China
- Savaid Medical School, University of the Chinese Academy of Sciences, Beijing, P.R. China
| | - Shuping Yan
- Northwest Institute of Plateau Biology, Chinese Academy of Science, Xining, R.P. China
- Savaid Medical School, University of the Chinese Academy of Sciences, Beijing, P.R. China
| | - Cheng Shen
- Northwest Institute of Plateau Biology, Chinese Academy of Science, Xining, R.P. China
- Savaid Medical School, University of the Chinese Academy of Sciences, Beijing, P.R. China
| | - Hongmei Li
- Northwest Institute of Plateau Biology, Chinese Academy of Science, Xining, R.P. China
- Savaid Medical School, University of the Chinese Academy of Sciences, Beijing, P.R. China
| | - Peipei Li
- Northwest Institute of Plateau Biology, Chinese Academy of Science, Xining, R.P. China
- Savaid Medical School, University of the Chinese Academy of Sciences, Beijing, P.R. China
| | - Yulin Li
- Northwest Institute of Plateau Biology, Chinese Academy of Science, Xining, R.P. China
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Preparation of a novel EGFR specific immunotoxin and its efficacy of anti-colorectal cancer in vitro and in vivo. Clin Transl Oncol 2021; 23:1549-1560. [PMID: 33474678 DOI: 10.1007/s12094-020-02548-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Accepted: 12/27/2020] [Indexed: 12/13/2022]
Abstract
OBJECTIVES Epithelial growth factor receptor (EGFR), as a malignancy marker, is overly expressed in multiple solid tumors including colorectal neoplasms, one of the most prevalent malignancies worldwide. The main objective of this study is to enhance the efficacy of anti-tumor therapy targeting EGFR by constructing a novel EGFR-specific immunotoxin (C-CUS245C) based on Cetuximab and recombinant Cucurmosin (CUS245C). METHODS E. coli BL21 (DE3) PlysS (E. coli) was used to express CUS245C with a cysteine residue inserting to the C-terminus of Cucurmosin. Then immobilized metal ion affinity chromatography (IMAC) was used to purify CUS245C. The chemical conjugation method was used for the preparation of C-CUS245C. Then dialysis and IMAC were used to purify C-CUS245C. Western blot as well as SDS-PAGE was carried out to characterize the formation of C-CUS245C. At last the anti-colorectal cancer activity of C-CUS245C was investigated in vitro and in vivo. RESULTS CUS245C with high purity could be obtained from the prokaryotic system. C-CUS245C was successfully constructed and highly purified. The cytotoxicity assays in vitro showed a significant proliferation inhibition of C-CUS245C on EGFR-positive cells for 120 h with IC50 values less than 0.1 pM. Besides, the anti-tumor efficacy of C-CUS245C was remarkably more potent than that of Cetuximab, CUS245C, and C + CUS245C (P < 0.001). Whereas the cytotoxicity of C-CUS245C could hardly be detected on EGFR-null cell line. Our results also showed that C-CUS245C had efficacy of anti-colorectal cancer in mouse xenograft model, indicating the therapeutic potential of C-CUS245C for the targeted therapy of colorectal neoplasms. CONCLUSIONS C-CUS245C exhibits potent and EGFR-specific cytotoxicity. Insertional mutagenesis technique is worthy to be adopted in the preparation of immunotoxin. Immunotoxin can be highly purified through dialysis followed by IMAC.
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Recovery of Oligomeric Proanthocyanidins and Other Phenolic Compounds with Established Bioactivity from Grape Seed By-Products. Molecules 2019; 24:molecules24040677. [PMID: 30769803 PMCID: PMC6413075 DOI: 10.3390/molecules24040677] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Revised: 02/05/2019] [Accepted: 02/11/2019] [Indexed: 12/30/2022] Open
Abstract
Grape seeds are a copious part of the grape pomace produced by wine and juice industry and they represent an interesting source of phenolic compounds. Proanthocyanidins (PAs) are the main class of grape seed phenols and are important dietary supplements for their well-known beneficial properties. In this study enriched extracts obtained from Chardonnay and Pignoletto grape seeds were characterized for their proanthocyanidins and other minor phenolic compounds content and composition. Seed PAs were fractionated using Sephadex LH-20, using different ethanol aqueous solutions as mobile phase and analysed by normal phase HPLC-FLD-ESI-MS. Monomers, oligomers up to dodecamers and polymers were recorded in all samples. For both cultivars, the extracts showed a high content in PAs. The determination of other phenolic compounds was carried out using a HPLC-QqQ-ESI-MS and Chardonnay samples reported a greater content compared to Pignoletto samples. Contrary to PAs fraction, extracts obtained with ethanol/water 50/50 (v/v) presented a significant higher phenolic content than the others.
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Zhou YF, Wang LL, Chen LC, Liu TB, Sha RY, Mao JW. Enrichment and separation of steroidal saponins from the fibrous roots of Ophiopogon japonicus using macroporous adsorption resins. RSC Adv 2019; 9:6689-6698. [PMID: 35518499 PMCID: PMC9061077 DOI: 10.1039/c8ra09319a] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Accepted: 02/19/2019] [Indexed: 11/30/2022] Open
Abstract
In this study, a simple and effective strategy for the enrichment of total steroidal saponins (TSS) from the fibrous roots of Ophiopogon japonicus (L. f.) Ker-Gawl. (FROJ) using macroporous adsorption resin was systematically developed. XAD-7HP resin was selected from six macroporous resins for further study because of the highest static adsorption and desorption capacities. The static adsorption of TSS on XAD-7HP resin fitted well to the Langmuir isotherm model and pseudo second-order kinetic model; the thermodynamics test showed that the adsorption process was spontaneous and exothermic. The dynamic tests on XAD-7HP resin columns demonstrated that the breakthrough volume was 16 bed volume (BV), and 6 BV of 80% ethanol was suitable for dynamic desorption. In a lab scale-up separation under optimal dynamic conditions, the content of TSS in the resin-enrichment fraction increased from 1.83% in the crude extracts to 13.86% by 7.59-fold with a recovery yield of 82.68%. Three steroidal saponins were obtained from the resin-enrichment fraction, and showed protective effects against oxidized low-density lipoprotein (ox-LDL) induced human umbilical vein endothelial cell (HUVEC) injury. Overall, these results suggested that XAD-7HP resin chromatography was an effective strategy for the large scale enrichment of TSS from FROJ, which showed the potential for functional food and pharmaceutical application. In this study, a simple and effective strategy for the enrichment of total steroidal saponins (TSS) from the fibrous roots of Ophiopogon japonicus (L. f.) Ker-Gawl. (FROJ) using macroporous adsorption resin was systematically developed.![]()
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Affiliation(s)
- Yi-Feng Zhou
- School of Biological and Chemical Engineering
- Zhejiang University of Science and Technology
- Hangzhou
- China
- Zhejiang Provincial Key Lab for Chemical and Biological Processing Technology of Farm Produces
| | | | - Li-Chun Chen
- School of Biological and Chemical Engineering
- Zhejiang University of Science and Technology
- Hangzhou
- China
- Zhejiang Provincial Key Lab for Chemical and Biological Processing Technology of Farm Produces
| | - Tie-bing Liu
- School of Biological and Chemical Engineering
- Zhejiang University of Science and Technology
- Hangzhou
- China
- Zhejiang Provincial Key Lab for Chemical and Biological Processing Technology of Farm Produces
| | - Ru-Yi Sha
- School of Biological and Chemical Engineering
- Zhejiang University of Science and Technology
- Hangzhou
- China
- Zhejiang Provincial Key Lab for Chemical and Biological Processing Technology of Farm Produces
| | - Jian-Wei Mao
- School of Biological and Chemical Engineering
- Zhejiang University of Science and Technology
- Hangzhou
- China
- Zhejiang Provincial Key Lab for Chemical and Biological Processing Technology of Farm Produces
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Wang W, Zhang P, Tang K, Xu W. Continuous and selective separation of EGCG from tea polyphenols by fractional extraction: Experiment and simulation. AIChE J 2018. [DOI: 10.1002/aic.16419] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Wanru Wang
- Dept. of Chemistry and Chemical Engineering; Hunan Institute of Science and Technology; Yueyang Hunan China
| | - Panliang Zhang
- Dept. of Chemistry and Chemical Engineering; Hunan Institute of Science and Technology; Yueyang Hunan China
| | - Kewen Tang
- Dept. of Chemistry and Chemical Engineering; Hunan Institute of Science and Technology; Yueyang Hunan China
| | - Weifeng Xu
- Dept. of Chemistry and Chemical Engineering; Hunan Institute of Science and Technology; Yueyang Hunan China
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Wu X, Ding H, Hu X, Pan J, Liao Y, Gong D, Zhang G. Exploring inhibitory mechanism of gallocatechin gallate on a-amylase and a-glucosidase relevant to postprandial hyperglycemia. J Funct Foods 2018. [DOI: 10.1016/j.jff.2018.07.022] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
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13
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Enrichment, purification and in vitro antioxidant activities of polysaccharides from Umbilicaria esculenta macrolichen. Biochem Eng J 2018. [DOI: 10.1016/j.bej.2017.11.004] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Li KK, Peng JM, Zhu W, Cheng BH, Li CM. Gallocatechin gallate (GCG) inhibits 3T3-L1 differentiation and lipopolysaccharide induced inflammation through MAPK and NF-κB signaling. J Funct Foods 2017. [DOI: 10.1016/j.jff.2017.01.016] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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