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Ong CB, Annuar MSM. Potentialities of Tannase-Treated Green Tea Extract in Nutraceutical and Therapeutic Applications. Appl Biochem Biotechnol 2024:10.1007/s12010-024-04946-y. [PMID: 38713339 DOI: 10.1007/s12010-024-04946-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/16/2024] [Indexed: 05/08/2024]
Abstract
Green tea has garnered widespread interest in the past decades due to its content of health-beneficial polyphenols and catechins, besides reportedly exhibiting activities for the prevention, and possibly treatment, of many modern-life-associated afflictions. Hence, the functional food potential of health-beneficial beverages such as green tea is widely and commercially promoted. Biotransformation of green tea extract using enzymes such as tannase ostensibly enhances its beneficial well-being properties and disease-preventing functionalities. The tannase-treated green tea catechins may exhibit enhanced, amongst others, antioxidant, anti-tumour, anti-wrinkle, anti-inflammatory, anti-obesity and anti-sarcopenia properties compared to native green tea extract. Nonetheless, the health benefits and therapeutic and toxicological effects associated with these compounds, before and after tannase treatment, present a scientific gap for detailed studies. Accordingly, the review surveys the literature from the late twentieth century until the year 2023 related to the aforementioned important aspects.
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Affiliation(s)
- Chong-Boon Ong
- School of Science and Psychology, Faculty of Arts and Science, International University of Malaya-Wales, 50480, Kuala Lumpur, Malaysia.
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2
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Jermjun K, Khumho R, Thongoiam M, Yousatit S, Yokoi T, Ngamcharussrivichai C, Nuntang S. Natural Rubber/Hexagonal Mesoporous Silica Nanocomposites as Efficient Adsorbents for the Selective Adsorption of (-)-Epigallocatechin Gallate and Caffeine from Green Tea. Molecules 2023; 28:6019. [PMID: 37630270 PMCID: PMC10458317 DOI: 10.3390/molecules28166019] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 08/02/2023] [Accepted: 08/09/2023] [Indexed: 08/27/2023] Open
Abstract
(-)-Epigallocatechin gallate (EGCG) is a bioactive component of green tea that provides many health benefits. However, excessive intake of green tea may cause adverse effects of caffeine (CAF) since green tea (30-50 mg) has half the CAF content of coffee (80-100 mg). In this work, for enhancing the health benefits of green tea, natural rubber/hexagonal mesoporous silica (NR/HMS) nanocomposites with tunable textural properties were synthesized using different amine template sizes and applied as selective adsorbents to separate EGCG and CAF from green tea. The resulting adsorbents exhibited a wormhole-like silica framework, high specific surface area (528-578 m2 g-1), large pore volume (0.76-1.45 cm3 g-1), and hydrophobicity. The NR/HMS materials adsorbed EGCG more than CAF; the selectivity coefficient of EGCG adsorption was 3.6 times that of CAF adsorption. The EGCG adsorption capacity of the NR/HMS series was correlated with their pore size and surface hydrophobicity. Adsorption behavior was well described by a pseudo-second-order kinetic model, indicating that adsorption involved H-bonding interactions between the silanol groups of the mesoporous silica surfaces and the hydroxyl groups of EGCG and the carbonyl group of CAF. As for desorption, EGCG was more easily removed than CAF from the NR/HMS surface using an aqueous solution of ethanol. Moreover, the NR/HMS materials could be reused for EGCG adsorption at least three times. The results suggest the potential use of NR/HMS nanocomposites as selective adsorbents for the enrichment of EGCG in green tea. In addition, it could be applied as an adsorbent in the filter to reduce the CAF content in green tea by up to 81.92%.
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Affiliation(s)
- Kamolwan Jermjun
- Industrial Chemistry Innovation Program, Faculty of Science, Maejo University, Chiang Mai 50290, Thailand;
| | - Rujeeluk Khumho
- Department of Chemical Technology, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand; (R.K.); (M.T.); (S.Y.); (C.N.)
| | - Mookarin Thongoiam
- Department of Chemical Technology, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand; (R.K.); (M.T.); (S.Y.); (C.N.)
| | - Satit Yousatit
- Department of Chemical Technology, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand; (R.K.); (M.T.); (S.Y.); (C.N.)
| | - Toshiyuki Yokoi
- Chemical Resources Laboratory, Tokyo Institute of Technology, Yokohama 226-8503, Japan;
| | - Chawalit Ngamcharussrivichai
- Department of Chemical Technology, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand; (R.K.); (M.T.); (S.Y.); (C.N.)
- Center of Excellence on Petrochemical and Materials Technology (PETROMAT), Chulalongkorn University, Bangkok 10330, Thailand
- Center of Excellence in Catalysis for Bioenergy and Renewable Chemicals (CBRC), Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
| | - Sakdinun Nuntang
- Industrial Chemistry Innovation Program, Faculty of Science, Maejo University, Chiang Mai 50290, Thailand;
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Slika H, Mansour H, Wehbe N, Nasser SA, Iratni R, Nasrallah G, Shaito A, Ghaddar T, Kobeissy F, Eid AH. Therapeutic potential of flavonoids in cancer: ROS-mediated mechanisms. Biomed Pharmacother 2022; 146:112442. [PMID: 35062053 DOI: 10.1016/j.biopha.2021.112442] [Citation(s) in RCA: 130] [Impact Index Per Article: 65.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 11/14/2021] [Accepted: 11/16/2021] [Indexed: 12/14/2022] Open
Abstract
Cancer is a leading cause of morbidity and mortality around the globe. Reactive oxygen species (ROS) play contradicting roles in cancer incidence and progression. Antioxidants have attracted attention as emerging therapeutic agents. Among these are flavonoids, which are natural polyphenols with established anticancer and antioxidant capacities. Increasing evidence shows that flavonoids can inhibit carcinogenesis via suppressing ROS levels. Surprisingly, flavonoids can also trigger excessive oxidative stress, but this can also induce death of malignant cells. In this review, we explore the inherent characteristics that contribute to the antioxidant capacity of flavonoids, and we dissect the scenarios in which they play the contrasting role as pro-oxidants. Furthermore, we elaborate on the pathways that link flavonoid-mediated modulation of ROS to the prevention and treatment of cancer. Special attention is given to the ROS-mediated anticancer functions that (-)-epigallocatechin gallate (EGCG), hesperetin, naringenin, quercetin, luteolin, and apigenin evoke in various cancers. We also delve into the structure-function relations that make flavonoids potent antioxidants. This review provides a detailed perspective that can be utilized in future experiments or trials that aim at utilizing flavonoids or verifying their efficacy for developing new pharmacologic agents. We support the argument that flavonoids are attractive candidates for cancer therapy.
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Affiliation(s)
- Hasan Slika
- Department of Pharmacology and Toxicology, American University of Beirut, P.O. Box 11-0236, Beirut, Lebanon.
| | - Hadi Mansour
- Department of Pharmacology and Toxicology, American University of Beirut, P.O. Box 11-0236, Beirut, Lebanon.
| | - Nadine Wehbe
- Department of Biology, American University of Beirut, P.O. Box 11-0236, Beirut, Lebanon.
| | - Suzanne A Nasser
- Department of Pharmacology and Therapeutics, Beirut Arab University, P.O. Box 11-5020, Beirut, Lebanon.
| | - Rabah Iratni
- Department of Biology, College of Science, United Arab Emirates University, P.O. Box 15551, Al-Ain, United Arab Emirates.
| | - Gheyath Nasrallah
- Department of Biomedical Sciences, College of Health Sciences, Qatar University, P.O. Box: 2713, Doha, Qatar.
| | - Abdullah Shaito
- Biomedical Research Center, Qatar University, P.O. Box: 2713, Doha, Qatar.
| | - Tarek Ghaddar
- Department of Chemistry, American University of Beirut, P.O. Box 11-0236, Beirut, Lebanon.
| | - Firas Kobeissy
- Department of Biochemistry and Molecular Genetics, American University of Beirut, P.O. Box: 11-0236, Beirut, Lebanon.
| | - Ali H Eid
- Department of Basic Medical Sciences, College of Medicine, QU Health, Qatar University, P.O. Box 2713, Doha, Qatar; Biomedical and Pharmaceutical Research Unit, QU Health, Qatar University, P.O. Box 2713, Doha, Qatar.
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4
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Status of the application of exogenous enzyme technology for the development of natural plant resources. Bioprocess Biosyst Eng 2020; 44:429-442. [PMID: 33146790 DOI: 10.1007/s00449-020-02463-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2020] [Accepted: 10/16/2020] [Indexed: 10/23/2022]
Abstract
Exogenous enzymes are extraneous enzymes that are not intrinsic to the subject. The exogenous enzyme industry has been rapidly developing recently. Successful application of recombinant DNA amplification, high-efficiency expression, and immobilization technology to genetically engineered bacteria provides a rich source of enzymes. Amylase, cellulase, protease, pectinase, glycosidase, tannase, and polyphenol oxidase are among the most widely used such enzymes. Currently, the application of exogenous enzyme technology in the development of natural plant resources mainly focuses on improving the taste and flavor of the product, enriching the active ingredient contents, deriving and transforming the structure of a chosen compound, and enhancing the biological activity and utilization of the functional ingredient. In this review, we discuss the application status of exogenous enzyme technology for the development of natural plant resources using typical natural active ingredients from plant, such as resveratrol, steviosides, catechins, mogrosides, and ginsenosides, as examples, to provide basis for further exploitation and utilization of exogenous enzyme technology.
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Aytaç E, Sökmen M. Selective isolation of epigallocatechin‐3‐gallate from green tea. SEPARATION SCIENCE PLUS 2020. [DOI: 10.1002/sscp.202000005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Ezgi Aytaç
- Department of Plant Sciences, Faculty of Agriculture and Natural SciencesKonya Food and Agriculture University Konya Turkey
| | - Münevver Sökmen
- Department of Bioengineering, Faculty of Engineering and ArchitectureKonya Food and Agriculture University Konya Turkey
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Wang S, Fan J, Xu L, Ye K, Shu T, Liu S. Enhancement of Antioxidant Activity in O/W Emulsion and Cholesterol-Reducing Capacity of Epigallocatechin by Derivatization with Representative Phytosterols. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:12461-12471. [PMID: 31613618 DOI: 10.1021/acs.jafc.9b04382] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
In this study, derivatization of epigallocatechin (EGC) by representative phytosterols (stigmasterol and β-sitosterol) was performed employing Steglich esterification. The structural identity and purity of epigallocatechin β-sitosterol (ESi) and epigallocatechin stigmasterol (ESt) were confirmed by NMR, FT-IR, and HPLC-MS. Further evaluation of ESi and ESt revealed their extraordinary antioxidant activities in O/W emulsion. Two different radical sources in oil or aqueous phase were applied to explore the antioxidant behavior in O/W emulsion. The mechanism was further investigated by fluorescent microscopy and transmission electron microscopy (TEM). Furthermore, incorporation of EGC with stigmasterol and β-sitosterol notably enhanced the cholesterol-reducing activity. TEM studies suggested the hydrogen bonding of EGC strengthened the aggregation network of ESi and ESt in the bile salt micelle. The exceptional properties of ESi and ESt signified their intriguing utilization in the food industry.
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Affiliation(s)
- Shanshan Wang
- Department of Food Science and Nutrition, Fuli Institute of Food Science, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang R & D Center for Food Technology and Equipment , Zhejiang University , 866 Yuhangtang Road , Hangzhou 310058 , China
| | - Jiawen Fan
- Department of Food Science and Nutrition, Fuli Institute of Food Science, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang R & D Center for Food Technology and Equipment , Zhejiang University , 866 Yuhangtang Road , Hangzhou 310058 , China
| | - Lujing Xu
- Department of Food Science and Nutrition, Fuli Institute of Food Science, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang R & D Center for Food Technology and Equipment , Zhejiang University , 866 Yuhangtang Road , Hangzhou 310058 , China
| | - Kai Ye
- Department of Food Science and Nutrition, Fuli Institute of Food Science, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang R & D Center for Food Technology and Equipment , Zhejiang University , 866 Yuhangtang Road , Hangzhou 310058 , China
| | - Tong Shu
- Qinghai Food Inspection and Testing Institute , 12 Beidajie , Xining 810000 , China
| | - Songbai Liu
- Department of Food Science and Nutrition, Fuli Institute of Food Science, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang R & D Center for Food Technology and Equipment , Zhejiang University , 866 Yuhangtang Road , Hangzhou 310058 , China
- Qinghai Food Inspection and Testing Institute , 12 Beidajie , Xining 810000 , China
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Suo H, Tian R, Xu W, Li L, Cui Y, Zhang S, Sun B. Novel Catechin-Tiopronin Conjugates Derived from Grape Seed Proanthocyanidin Degradation: Process Optimization, High-Speed Counter-Current Chromatography Preparation, as Well as Antibacterial Activity. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:11508-11517. [PMID: 31538478 DOI: 10.1021/acs.jafc.9b04571] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Tiopronin, as a novel thiol-containing nucleophile, was introduced for depolymerizing polymeric proanthocyanidins from grape seed into catechins and three new proanthocyanidin-tiopronin degradation products: (+)-catechin-4β-S-tiopronin methyl ester (CT), (-)-epicatechin-4β-S-tiopronin methyl ester (ECT), and (-)-epicatechin gallate-4β-S-tiopronin methyl ester (ECGT). A Box-Behnken design was employed to optimize degradation conditions based on single-factor experiments to obtain target products. Each of the new degradation compounds was isolated by the high-speed counter-current chromatography combined with semipreparative high performance liquid chromatography in large amounts, and then, their structures were identified by 1H NMR, 13C NMR, 2D-NMR, as well as mass spectrometry analysis. The absolute configurations were further confirmed by comparison between the calculated electronic circular dichroism and experimental spectra. Further evaluation of antibacterial activities of these compounds showed that CT and ECT possessed more inhibiting capacity against Staphylococcus aureus and Escherichia coli than parent compound catechin and epicatechin. However, ECGT has no bacteriostatic capacity against these two bacteria.
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Affiliation(s)
| | | | | | | | | | | | - Baoshan Sun
- Instituto National de Investigação Agrária e Veterinária, I.P. , Pólo Dois Portos , Quinta da Almoinha , 2565-191 Dois Portos , Portugal
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8
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Cai H, Feng J, Wang S, Shu T, Luo Z, Liu S. Tannic acid directed synthesis of Fe3O4@TA@P(NVP-co-NIPAM) magnetic microspheres for polyphenol extraction. Food Chem 2019; 283:530-538. [DOI: 10.1016/j.foodchem.2018.12.125] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Revised: 12/24/2018] [Accepted: 12/29/2018] [Indexed: 01/18/2023]
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9
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Instant structure profiling of substituted catechins by chemical shift fingerprint of hydrogens of phenolic hydroxyl groups. J Funct Foods 2017. [DOI: 10.1016/j.jff.2017.07.036] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
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10
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Preparative separation of grape skin polyphenols by high-speed counter-current chromatography. Food Chem 2016; 212:712-21. [DOI: 10.1016/j.foodchem.2016.06.009] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2016] [Revised: 05/24/2016] [Accepted: 06/05/2016] [Indexed: 12/31/2022]
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Xia G, Lin C, Liu S. Tannase-mediated biotransformation assisted separation and purification of theaflavin and epigallocatechin by high speed counter current chromatography and preparative high performance liquid chromatography: A comparative study. Microsc Res Tech 2016; 79:880-9. [PMID: 27389804 DOI: 10.1002/jemt.22715] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Revised: 05/23/2016] [Accepted: 06/15/2016] [Indexed: 01/12/2023]
Abstract
A large scale isolation and purification of theaflavin (TF) and epigallocatechin (EGC) has been successfully developed by tannase-mediated biotransformation combining high-speed countercurrent chromatography. After tannase hydrolysis of a commercially available theaflavins extract (TE), the content of TF and EGC in tannase-mediated biotransformation product (TBP) achieved approximately 3 times enrichment. SEM studies revealed smooth tannase biotransformation and the possibility of recovery of the tannase. A single 1.5 hours' HSCCC separation for TF and EGC employing a two-phase solvent system could simultaneously produce 180.8 mg of 97.3% purity TF and 87.5 mg of 97.3% purity EGC. However, a preparative HPLC separation of maximum injection volume containing 120 mg TBP prepared 11.2 mg TF of 94.9% purity and 7.7 mg EGC of 89.9% purity. HSCCC separation demonstrated significant advantages over Prep HPLC in terms of sample loading size, separation time, environmental friendly solvent systems, and the production.
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Affiliation(s)
- Guobin Xia
- Department of Food Science and Nutrition, Fuli Institute of Food Science, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang R & D Center for Food Technology and Equipment, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, China
| | - Chunfang Lin
- Department of Food Science and Nutrition, Fuli Institute of Food Science, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang R & D Center for Food Technology and Equipment, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, China
| | - Songbai Liu
- Department of Food Science and Nutrition, Fuli Institute of Food Science, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang R & D Center for Food Technology and Equipment, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, China
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12
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Juang YM, Chien HJ, Chen CJ, Lai CC. Graphene flakes enhance the detection of TiO2-enriched catechins by SALDI-MS after microwave-assisted enrichment. Talanta 2016; 153:347-52. [DOI: 10.1016/j.talanta.2016.03.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Revised: 03/01/2016] [Accepted: 03/01/2016] [Indexed: 12/14/2022]
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Luan G, Wang H, Lv H, Hu N, Suo Y, Wang X. Separation and Purification of Five Flavone Glucosides and One Lignan from Caragana korshinskii Kom. by the Combination of HSCCC and Semi-preparative RPLC. Chromatographia 2016. [DOI: 10.1007/s10337-016-3090-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Sun Y, Hou Z, Liu Z, Wang J. Ionic Liquid-Based Ultrasonic-Assisted Extraction of Forsythosides from the Leaf of Forsythia suspensa (Thunb.) Vahl and Subsequent Separation and Purification by High-Speed Counter-Current Chromatography. J Chromatogr Sci 2016; 54:1445-52. [PMID: 27165571 DOI: 10.1093/chromsci/bmw069] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2015] [Indexed: 01/06/2023]
Abstract
An ionic liquid-based ultrasonic-assisted extraction (ILUAE) method was developed for the extraction of the two forsythosides, namely forsythosides I and A from the leaf of Forsythia suspensa (Thunb.) Vahl. Three kinds of l-alkyl-3-methylimidazolium ionic liquids with different alkyl chain and anion were investigated. The results indicated that ionic liquids showed remarkable effects on the extraction yields of forsythosides. In addition, several ILUAE ultrasonic parameters, such as the solvent concentration, solvent to solid ratio and extraction time have been optimized. Under these optimal conditions (e.g., with 0.6 M [C6MIM]Br, solvent to solid ratio of 15 mL/g and extraction time of 10 min), this approach gained the highest extraction yields of forsythoside I (0.89%) and forsythoside A (10.74%). Meanwhile, forsythosides in the ILUAE extract were separated and purified successfully through the high-speed counter-current chromatography with a two-phase solvent system consisting of ethyl acetate-ethanol-acetic acid-water (4 : 1 : 0.25 : 6, v/v). 5.4 mg of forsythoside I and 59.7 mg of forsythoside A were obtained from 120 mg of the prepurified sample in one-step separation, with the purity of 96.1 and 97.9%, respectively, as determined by high-performance liquid chromatography. Their structures were identified by (1)H nuclear magnetic resonance (NMR) and (13)C NMR.
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Affiliation(s)
- Yinshi Sun
- Institute of Special Animal and Plant Sciences, Chinese Academy of Agricultural Sciences, 130112 Changchun, China
| | - Zhiguang Hou
- College of Resource and Environmental Science, Jilin Agricultural University, 130118 Changchun, China
| | - Zhengbo Liu
- Institute of Special Animal and Plant Sciences, Chinese Academy of Agricultural Sciences, 130112 Changchun, China
| | - Jianhua Wang
- College of Agronomy, Shandong Agricultural University, 271018 Taian, China
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Hong S, Liu S. Targeted acylation for all the hydroxyls of (+)-catechin and evaluation of their individual contribution to radical scavenging activity. Food Chem 2016; 197:415-21. [DOI: 10.1016/j.foodchem.2015.10.134] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2015] [Revised: 10/03/2015] [Accepted: 10/28/2015] [Indexed: 01/31/2023]
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16
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Lv H, Yuan Z, Wang X, Wang Z, Suo Y, Wang H. Rapid Separation of Three Proanthocyanidin Dimers from Iris lactea Pall. var. Chinensis (Fisch.) Koidz by High-Speed Counter-Current Chromatography With Continuous Sample Load and Double-Pump Balancing Mode. PHYTOCHEMICAL ANALYSIS : PCA 2015; 26:444-453. [PMID: 26103066 DOI: 10.1002/pca.2579] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2015] [Revised: 05/16/2015] [Accepted: 05/18/2015] [Indexed: 06/04/2023]
Abstract
INTRODUCTION The dried seeds of Iris lactea have been used in traditional Chinese medicine. Previous studies have been focused on irisquinones while other chemical components are rarely reported. OBJECTIVE To establish an efficient high-speed counter-current chromatography (HSCCC) separation method with continuous sample load (CSL) and double-pump balancing (DPB) mode to isolate proanthocyanidins from I. lactea. METHODS Firstly, an ethyl acetate extract of I. lactea was pre-fractionated by silica column chromatography for the enrichment of proanthocyanidins. Secondly, the enriched proanthocyanidins sample (EPS) was further fractionated by HSCCC with a two-phase solvent system ethyl acetate:n-butanol:water (9:1:10, v/v/v) using DPB mode. The flow rate of the two phases was 2.2 mL/min, the revolution speed was 900 rpm, the separation temperature was 30 °C and the detection wavelength was 280 nm. Finally, the structures of the three isolated proanthocyanidins were elucidated by spectroscopic methods and compared with published data. RESULTS Under the optimized conditions, 600 mg of the EPS with six continuous injections (100 mg/time) was fractionated, yielding 57 mg of prodelphinidin B3, 198 mg of procyanidin B3, and 162 mg of procyanidin B1, at purities of 97.2%, 98.1% and 97.3%, respectively. CONCLUSIONS The HSCCC separation method with CSL and DPB proved to be rapid, convenient and economical, constituting an efficient strategy for the isolation of proanthocyanidins.
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Affiliation(s)
- Huanhuan Lv
- Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, 810001, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Zhenzhen Yuan
- Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, 810001, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiaoyan Wang
- Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, 810001, China
| | - Zhenhua Wang
- Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, 810001, China
| | - Yourui Suo
- Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, 810001, China
| | - Honglun Wang
- Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, 810001, China
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17
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Lv H, Ouyang J, Wang X, Ma X, Suo Y, Wang H. Separation and Purification of Four Flavan-3-ols FromIris LacteaPall.var. Chinensis(Fisch.) Koidz by High-Speed Counter-Current Chromatography with Flow-Rate Gradient. J LIQ CHROMATOGR R T 2015. [DOI: 10.1080/10826076.2015.1063506] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Huanhuan Lv
- Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, P. R. China
- University of Chinese Academy of Sciences, Beijing, P. R. China
| | - Jian Ouyang
- Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, P. R. China
- University of Chinese Academy of Sciences, Beijing, P. R. China
| | - Xiaoyan Wang
- Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, P. R. China
| | - Xiaofeng Ma
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, P. R. China
| | - Yourui Suo
- Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, P. R. China
| | - Honglun Wang
- Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, P. R. China
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Jin X, Liu M, Chen Z, Mao R, Xiao Q, Gao H, Wei M. Separation and purification of epigallocatechin-3-gallate (EGCG) from green tea using combined macroporous resin and polyamide column chromatography. J Chromatogr B Analyt Technol Biomed Life Sci 2015; 1002:113-22. [PMID: 26319304 DOI: 10.1016/j.jchromb.2015.07.055] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2015] [Revised: 07/29/2015] [Accepted: 07/30/2015] [Indexed: 12/11/2022]
Abstract
Epigallocatechin-3-gallate (EGCG) is a major bioactive ingredient of green tea that produces beneficial neuroprotective effects. In this paper, to optimize the EGCG enrichment, thirteen macroporous resins with different chemical and physical properties were systemically evaluated. Among the thirteen tested resins, the H-bond resin HPD826 exhibited best adsorption/desorption capabilities and desorption ratio, as well as weakest affinity for caffeine. The absorption of EGCG on the HPD826 resin followed the pseudo-second-order kinetics and Langmuir isotherm model. The separation parameters of EGCG were optimized by dynamic adsorption/desorption experiments with the HPD826 resin column. Under the optimal condition, the content of EGCG in the 30% ethanol eluent increased by 5.8-fold from 7.7% to 44.6%, with the recovery yield of 72.1%. After further purification on a polyamide column, EGCG with 74.8% purity was obtained in the 40-50% ethanol fraction with a recovery rate of 88.4%. In addition, EGCG with 95.1% purity could be easily obtained after one-step crystallization in distilled water. Our study suggests that the combined macroporous resin and polyamide column chromatography is a simple method for large-scale separation and purification of EGCG from natural plants for food and pharmaceutical applications.
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Affiliation(s)
- Xin Jin
- School of Pharmacy, China Medical University, Shenyang 110001, China
| | - Mingyan Liu
- School of Pharmacy, China Medical University, Shenyang 110001, China
| | - Zaixing Chen
- School of Pharmacy, China Medical University, Shenyang 110001, China
| | - Ruikun Mao
- School of Pharmacy, China Medical University, Shenyang 110001, China
| | - Qinghuan Xiao
- School of Pharmacy, China Medical University, Shenyang 110001, China
| | - Hua Gao
- School of Pharmacy, China Medical University, Shenyang 110001, China; Division of Pharmacology Laboratory, National Institutes for Food and Drug Control, Beijing 100050, China.
| | - Minjie Wei
- School of Pharmacy, China Medical University, Shenyang 110001, China.
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Zhang S, Cui Y, Li L, Li Y, Zhou P, Luo L, Sun B. Preparative HSCCC isolation of phloroglucinolysis products from grape seed polymeric proanthocyanidins as new powerful antioxidants. Food Chem 2015; 188:422-9. [PMID: 26041213 DOI: 10.1016/j.foodchem.2015.05.030] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2015] [Revised: 05/06/2015] [Accepted: 05/06/2015] [Indexed: 11/18/2022]
Abstract
Polymeric proanthocyanidins isolated from a grape seed phenolic extract were hydrolysed in the presence of phloroglucinol into monomer catechins and their nucleophile derivatives. Each of the phloroglucinolysis products was successfully separated and isolated in large amount by semi-preparative HSCCC technique under the optimized conditions based on a selection of suitable solvent system. The optimized solvent system consisted of n-hexane-ethyl acetate-water (1:80:80, v/v/v) with a combination of head-tail and tail-head elution modes. By only one-step HSCCC separation, the purity of each obtained phloroglucinolysis product, including monomer catechins and their nucleophile derivatives was above 76%, verified by UPLC. The structures of these products were tentatively identified by UPLC based on their retention time and further confirmed by MS and (1)H NMR analysis. Furthermore, by DPPH, ABTS and FRAP assays, it was verified that all these phloroglucinolysis products possessed strong antioxidant activities, being catechin-nucleophile derivatives more powerful than free catechins.
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Affiliation(s)
- Shuting Zhang
- School of Pharmacy, Shenyang Pharmaceutical University, 110016 Shenyang, China; Department of Pharmacy, Jiamusi University, 154007 Jiamusi, China
| | - Yan Cui
- School of Pharmacy, Shenyang Pharmaceutical University, 110016 Shenyang, China
| | - Lingxi Li
- School of Pharmacy, Shenyang Pharmaceutical University, 110016 Shenyang, China
| | - Yuanyuan Li
- School of Pharmacy, Shenyang Pharmaceutical University, 110016 Shenyang, China
| | - Peiyu Zhou
- School of Pharmacy, Shenyang Pharmaceutical University, 110016 Shenyang, China
| | - Lanxin Luo
- School of Pharmacy, Shenyang Pharmaceutical University, 110016 Shenyang, China
| | - Baoshan Sun
- School of Pharmacy, Shenyang Pharmaceutical University, 110016 Shenyang, China; Pólo Dois Portos, Instituto National de Investigação Agrária e Veterinária, I.P., Quinta da Almoinha, 2565-191 Dois Portos, Portugal.
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Lv H, Wang H, He Y, Ding C, Wang X, Suo Y. Separation and purification of four oligostilbenes from Iris lactea Pall. var. chinensis (Fisch.) Koidz by high-speed counter-current chromatography. J Chromatogr B Analyt Technol Biomed Life Sci 2015; 988:127-34. [PMID: 25770790 DOI: 10.1016/j.jchromb.2015.02.035] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2014] [Revised: 01/26/2015] [Accepted: 02/25/2015] [Indexed: 11/16/2022]
Abstract
A method of using high-speed counter-current chromatography (HSCCC) for preparative isolation and purification of oligostilbenes from the ethanol extracts of seed kernel of Iris lactea Pall. var. chinensis (Fisch.) Koidz was established in this study. Four oligostilbenes were successfully separated and purified by HSCCC with two sets of two-phase solvent system, n-hexane-ethyl acetate-methanol-water (3:6:4.2:5.5, v/v/v/v) in the head-to-tail elution mode for the first separation to mainly isolate vitisin A (58 mg), ɛ-viniferin (76 mg) and peak II (43 mg) from 300 mg of the crude ethanol extracts, and then light petroleum-ethyl acetate-methanol-water (5:5:3:6, v/v/v/v) in the tail-to-head elution mode for the second separation to isolate vitisin B (52 mg) and vitisin C (11 mg) from 100mg of peak II. The purities of the isolated four oligostilbenes were all over 95.0% as determined by HPLC. Vitisin A, vitisin B and vitisin C, resveratrol tetramers, were isolated from Iris lactea for the first time. The preparation of crude sample was simple and the HSCCC method for the isolation and purification of four oligostilbenes was rapid, efficient and economical.
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Affiliation(s)
- Huanhuan Lv
- Key Laboratory of Tibetan Medicine Research, Northwest Institution of Plateau Biology, Chinese Academy of Sciences, Xining, 810001, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Honglun Wang
- Key Laboratory of Tibetan Medicine Research, Northwest Institution of Plateau Biology, Chinese Academy of Sciences, Xining, 810001, China.
| | - Yanfeng He
- Key Laboratory of Tibetan Medicine Research, Northwest Institution of Plateau Biology, Chinese Academy of Sciences, Xining, 810001, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Chenxu Ding
- Key Laboratory of Tibetan Medicine Research, Northwest Institution of Plateau Biology, Chinese Academy of Sciences, Xining, 810001, China
| | - Xiaoyan Wang
- Key Laboratory of Tibetan Medicine Research, Northwest Institution of Plateau Biology, Chinese Academy of Sciences, Xining, 810001, China
| | - Yourui Suo
- Key Laboratory of Tibetan Medicine Research, Northwest Institution of Plateau Biology, Chinese Academy of Sciences, Xining, 810001, China
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Shuting Z, Yan C, Baoshan S. Preparative isolation of monomer catechins and oligomer procyanidin fractions from grape seed extracts by high-speed counter-current chromatography. BIO WEB OF CONFERENCES 2014. [DOI: 10.1051/bioconf/20140302013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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