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Cheng Y, Wan S, Yao L, Lin D, Wu T, Chen Y, Zhang A, Lu C. Bamboo leaf: A review of traditional medicinal property, phytochemistry, pharmacology, and purification technology. JOURNAL OF ETHNOPHARMACOLOGY 2023; 306:116166. [PMID: 36649850 DOI: 10.1016/j.jep.2023.116166] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 01/05/2023] [Accepted: 01/10/2023] [Indexed: 06/17/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Bamboos are perennial evergreen plants that belong to the subfamily Bambusoideae of the true grass family Poaceae, with more than thousands of species distributed around the world. They are used as a traditional medicine with demonstrated effects of anti-oxidation, free radical scavenging, anti-inflammatory, liver protection and ameliorating cognitive deficits. Bamboo leaf is mainly used for the treatment of atherosclerotic, diabetic and nervous system diseases. AIM OF THE STUDY This review aims to provide up-to-date information on the traditional medicinal properties, phytochemistry, pharmacology, and purification technologies of bamboo leaf. MATERIALS AND METHODS Relevant information on bamboo leaf was obtained by an online search of worldwide accepted scientific databases (Web of Science, ScienceDirect, Elsevier, SpringerLink, ACS Publications, Wiley Online Library and CNKI). RESULTS More than 100 chemical compounds, including flavonoids and flavonoid glycosides, volatile components, phenolic acids, polysaccharide, coenzyme Q10, phenylpropanoid and amino acids have been reported to be present. These compounds were usually extracted by column chromatography and membrane separation technologies. Preparative high performance liquid chromatography (PHPLC), high-speed counter-current chromatography (HSCCC), simulated moving bed chromatography (SMB) and dynamic axial compression chromatography (DAC) were the advanced separation technologies have been used to isolate C-glycosides from bamboo leaf flavonoid, the main bioactive ingredient of bamboo leaf. Currently, bamboo leaf is mainly used for the treatment of atherosclerotic, diabetic, hepatic diseases and nervous system related symptoms, which are attributed to the presence of bioactive components of bamboo leaf. CONCLUSIONS Phytochemical and pharmacological analyses of bamboo leaf have been revealed in recent studies. However, most of the pharmacological studies on bamboo leaf have focused on bamboo leaf flavonoids. Further studies need to pay more attention to other phytochemical components of bamboo leaf. In addition, there is lack of sufficient clinical data and toxicity studies on bamboo leaf. Therefore, more clinical and toxicity researches on this plant and constituents are recommended.
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Affiliation(s)
- Yaqian Cheng
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, 311300, China; Zhejiang Provincial Key Laboratory of Resources Protection and Innovation of Traditional Chinese Medicine, Hangzhou, 311300, China
| | - Siqi Wan
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, 311300, China; Zhejiang Provincial Key Laboratory of Resources Protection and Innovation of Traditional Chinese Medicine, Hangzhou, 311300, China
| | - Linna Yao
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, 311300, China; Zhejiang Provincial Key Laboratory of Resources Protection and Innovation of Traditional Chinese Medicine, Hangzhou, 311300, China
| | - Ding Lin
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, 311300, China; Zhejiang Provincial Key Laboratory of Resources Protection and Innovation of Traditional Chinese Medicine, Hangzhou, 311300, China
| | - Tong Wu
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, 311300, China; Zhejiang Provincial Key Laboratory of Resources Protection and Innovation of Traditional Chinese Medicine, Hangzhou, 311300, China
| | - Yongjian Chen
- Zhejiang Limited Company of Science and Technology of SHENGSHI BIOLOGY, Huzhou, 313000, China
| | - Ailian Zhang
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, 311300, China; Zhejiang Provincial Key Laboratory of Resources Protection and Innovation of Traditional Chinese Medicine, Hangzhou, 311300, China.
| | - Chenfei Lu
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, 311300, China; Zhejiang Provincial Key Laboratory of Resources Protection and Innovation of Traditional Chinese Medicine, Hangzhou, 311300, China.
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Donkor S, Song Z, Jiang L, Chu H. An overview of computational and theoretical studies on analyzing adsorption performance of phytochemicals as metal corrosion inhibitors. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119260] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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3
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Berlinck RGS, Crnkovic CM, Gubiani JR, Bernardi DI, Ióca LP, Quintana-Bulla JI. The isolation of water-soluble natural products - challenges, strategies and perspectives. Nat Prod Rep 2021; 39:596-669. [PMID: 34647117 DOI: 10.1039/d1np00037c] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Covering period: up to 2019Water-soluble natural products constitute a relevant group of secondary metabolites notably known for presenting potent biological activities. Examples are aminoglycosides, β-lactam antibiotics, saponins of both terrestrial and marine origin, and marine toxins. Although extensively investigated in the past, particularly during the golden age of antibiotics, hydrophilic fractions have been less scrutinized during the last few decades. This review addresses the possible reasons on why water-soluble metabolites are now under investigated and describes approaches and strategies for the isolation of these natural compounds. It presents examples of several classes of hydrosoluble natural products and how they have been isolated. Novel stationary phases and chromatography techniques are also reviewed, providing a perspective towards a renaissance in the investigation of water-soluble natural products.
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Affiliation(s)
- Roberto G S Berlinck
- Instituto de Química de São Carlos, Universidade de São Paulo, CP 780, CEP 13560-970, São Carlos, SP, Brazil.
| | - Camila M Crnkovic
- Faculdade de Ciências Farmacêuticas, Universidade de São Paulo, CEP 05508-000, São Paulo, SP, Brazil
| | - Juliana R Gubiani
- Instituto de Química de São Carlos, Universidade de São Paulo, CP 780, CEP 13560-970, São Carlos, SP, Brazil.
| | - Darlon I Bernardi
- Instituto de Química de São Carlos, Universidade de São Paulo, CP 780, CEP 13560-970, São Carlos, SP, Brazil.
| | - Laura P Ióca
- Instituto de Química de São Carlos, Universidade de São Paulo, CP 780, CEP 13560-970, São Carlos, SP, Brazil.
| | - Jairo I Quintana-Bulla
- Instituto de Química de São Carlos, Universidade de São Paulo, CP 780, CEP 13560-970, São Carlos, SP, Brazil.
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Janson JC. An account on the innovative path of cooperation with Prof. Zhiguo Su in bioseparation. Eng Life Sci 2021; 21:344-350. [PMID: 34140845 PMCID: PMC8182279 DOI: 10.1002/elsc.202100016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Accepted: 02/02/2021] [Indexed: 11/16/2022] Open
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Identification of Transient Receptor Potential Vanilloid 3 Antagonists from Achillea alpina L. and Separation by Liquid-Liquid-Refining Extraction and High-Speed Counter-Current Chromatography. Molecules 2020; 25:molecules25092025. [PMID: 32357572 PMCID: PMC7248954 DOI: 10.3390/molecules25092025] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 04/23/2020] [Accepted: 04/23/2020] [Indexed: 01/17/2023] Open
Abstract
Bioassay-guided fractionation of the ethanol extract of whole herbs of Achilleaalpina led to the isolation of isochlorogenic acids A and B as transient receptor potential vanilloid 3 (TRPV3) channel antagonists by using a calcium fluorescent assay. The structures were identified by spectroscopic analysis and the inhibitory activities of isochlorogenic acids A and B were confirmed by whole-cell patch clamp recordings of human embryonic kidney 293 (HEK293) cells expressing human TRPV3. Molecular docking results revealed that these two compounds reside in the same active pocket of human TRPV3 channel protein with lower binding energy than the agonist 2-aminoethoxydiphenyl borate (2-APB). High-speed counter-current chromatography (HSCCC) coupled with a liquid-liquid extraction approach was successfully established for the separation of isochlorogenic acids A and B from the whole herbs of A. alpina. Ethyl acetate and n-hexane-ethyl acetate-water (3:3:4 and 1:5:4, v/v/v) were selected as liquid-liquid extraction solvent systems to remove high- and low-polarity impurities in the mixture. Sixty g of ethanol extract was refined by solvent partition to yield 1.7 g of the enriched fraction, of which 480 mg in turn obtained 52.5 mg of isochlorogenic acid B (purity 98.3%) and 37.6 mg isochlorogenic acid A (purity 96.2%) after HSCCC with n-hexane-ethyl acetate-water containing 1% acetic acid (1:4:8, v/v/v).
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Háková M, Havlíková LC, Švec F, Solich P, Šatínský D. Nanofibers as advanced sorbents for on-line solid phase extraction in liquid chromatography: A tutorial. Anal Chim Acta 2020; 1121:83-96. [PMID: 32493593 DOI: 10.1016/j.aca.2020.04.045] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 04/15/2020] [Accepted: 04/18/2020] [Indexed: 10/24/2022]
Abstract
Polymers in nanofiber format promise a great potential as sorbents for extraction techniques. This tutorial provides an overview of direct coupling of extraction techniques based on nanofibers to liquid chromatography. Arrangements of the fibers in conventional extraction cartridges are demonstrated. Selection of suitable nanomaterials according to their surface density, wettability, and mechanical stability is proposed and personal experience of the authors commented. Optimization of on-line extraction procedure, practical aspects, technical problems, pitfalls, pros, and cons of using nanofibers for extraction in high-pressure chromatography systems are also discussed and several examples presented. The following text comprehensively summarizes numerous reports that dealt with the topic. Future perspectives of advanced nanofiber materials and approaches that concern polymer fibers modifications are also included.
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Affiliation(s)
- Martina Háková
- Charles University, Faculty of Pharmacy, The Department of Analytical Chemistry, Ak. Heyrovského 1203, 500 05, Hradec Králové, Czech Republic
| | - Lucie Chocholoušová Havlíková
- Charles University, Faculty of Pharmacy, The Department of Analytical Chemistry, Ak. Heyrovského 1203, 500 05, Hradec Králové, Czech Republic
| | - František Švec
- Charles University, Faculty of Pharmacy, The Department of Analytical Chemistry, Ak. Heyrovského 1203, 500 05, Hradec Králové, Czech Republic
| | - Petr Solich
- Charles University, Faculty of Pharmacy, The Department of Analytical Chemistry, Ak. Heyrovského 1203, 500 05, Hradec Králové, Czech Republic
| | - Dalibor Šatínský
- Charles University, Faculty of Pharmacy, The Department of Analytical Chemistry, Ak. Heyrovského 1203, 500 05, Hradec Králové, Czech Republic.
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Aalim H, Belwal T, Wang Y, Luo Z, Hu J. Purification and identification of rice bran (
Oryza sativa L
.) phenolic compounds with
in‐vitro
antioxidant and antidiabetic activity using macroporous resins. Int J Food Sci Technol 2018. [DOI: 10.1111/ijfs.13985] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Halah Aalim
- Zhejiang Key Laboratory for Agri‐Food Processing Key Laboratory of Agro‐Products Postharvest Handling of Ministry of Agriculture and Rural Affairs College of Biosystems Engineering and Food Science Zhejiang University Hangzhou 310058 China
| | - Tarun Belwal
- Zhejiang Key Laboratory for Agri‐Food Processing Key Laboratory of Agro‐Products Postharvest Handling of Ministry of Agriculture and Rural Affairs College of Biosystems Engineering and Food Science Zhejiang University Hangzhou 310058 China
| | - Youyong Wang
- Zhejiang Key Laboratory for Agri‐Food Processing Key Laboratory of Agro‐Products Postharvest Handling of Ministry of Agriculture and Rural Affairs College of Biosystems Engineering and Food Science Zhejiang University Hangzhou 310058 China
| | - Zisheng Luo
- Zhejiang Key Laboratory for Agri‐Food Processing Key Laboratory of Agro‐Products Postharvest Handling of Ministry of Agriculture and Rural Affairs College of Biosystems Engineering and Food Science Zhejiang University Hangzhou 310058 China
| | - Juwu Hu
- Jiangxi Academy of Sciences Nanchang 330029 China
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Zhang QW, Lin LG, Ye WC. Techniques for extraction and isolation of natural products: a comprehensive review. Chin Med 2018; 13:20. [PMID: 29692864 PMCID: PMC5905184 DOI: 10.1186/s13020-018-0177-x] [Citation(s) in RCA: 557] [Impact Index Per Article: 92.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2018] [Accepted: 04/04/2018] [Indexed: 01/05/2023] Open
Abstract
Natural medicines were the only option for the prevention and treatment of human diseases for thousands of years. Natural products are important sources for drug development. The amounts of bioactive natural products in natural medicines are always fairly low. Today, it is very crucial to develop effective and selective methods for the extraction and isolation of those bioactive natural products. This paper intends to provide a comprehensive view of a variety of methods used in the extraction and isolation of natural products. This paper also presents the advantage, disadvantage and practical examples of conventional and modern techniques involved in natural products research.
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Affiliation(s)
- Qing-Wen Zhang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, People’s Republic of China
| | - Li-Gen Lin
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, People’s Republic of China
| | - Wen-Cai Ye
- Institute of Traditional Chinese Medicine & Natural Products, and Guangdong Provincial Engineering Research Center for Modernization of TCM, College of Pharmacy, Jinan University, Guangzhou, 510632 People’s Republic of China
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Sun L, Liu D, Sun J, Yang X, Fu M, Guo Y. Simultaneous separation and purification of chlorogenic acid, epicatechin, hyperoside and phlorizin from thinned young Qinguan apples by successive use of polyethylene and polyamide resins. Food Chem 2017; 230:362-371. [PMID: 28407923 DOI: 10.1016/j.foodchem.2017.03.065] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2016] [Revised: 02/21/2017] [Accepted: 03/11/2017] [Indexed: 01/06/2023]
Abstract
The method for separating and purifying chlorogenic acid (CA), epicatechin (EC), hyperoside (HY) and phlorizin (PH) simutaneously from young Qinguan apples by successive use of X-5 and polyamide resins has been developed in this study. The order of adsorption capacities of X-5 for the four phenolics was PH>HY>EC>CA, and the adsorption equilibriums of the four phenolics onto X-5 resin conformed to Langmuir isotherms preferentially. The adsorption kinetics of EC and CA onto X-5 conformed to the pseudo-first-order model, while that of HY and PH accorded with the pseudo-second-order model. Interestingly, the values of equilibrium adsorption capacities (Qe) calculated in the preferential kinetics models were closer to that of theoretical maximum adsorption capacities (Q0) calculated by Langmuir isotherms. Through dynamic adsorption and desorption using X-5 and polyamide resins with ethanol solution as strippant, CA, EC, HY and PH were obtained with purities of 96.21%, 95.34%, 95.36% and 97.36%, respectively.
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Affiliation(s)
- Lijun Sun
- Centre of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an 710062, PR China; Centre for Nutrition and Food Science, Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, Brisbane 4072, Australia
| | - Dongjie Liu
- Centre for Nutrition and Food Science, Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, Brisbane 4072, Australia
| | - Jiaojiao Sun
- Centre of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an 710062, PR China
| | - Xingbin Yang
- Centre of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an 710062, PR China
| | - Minghai Fu
- Centre for Nutrition and Food Science, Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, Brisbane 4072, Australia.
| | - Yurong Guo
- Centre of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an 710062, PR China.
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10
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Liu B, Dong B, Yuan X, Guo Y, Zhang L, Zhao B. Simultaneous detoxification and preparative separation of chlorogenic acid from Eupatorium adenophorum by combined column chromatography. SEP SCI TECHNOL 2017. [DOI: 10.1080/01496395.2017.1281300] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Boyan Liu
- Division of Biorefinery Engineering, State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, P.R. China
- University of Chinese Academy of Sciences, Beijing, P.R. China
| | - Beitao Dong
- Division of Biorefinery Engineering, State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, P.R. China
- University of Chinese Academy of Sciences, Beijing, P.R. China
| | - Xiaofan Yuan
- Division of Biorefinery Engineering, State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, P.R. China
| | - Yuanheng Guo
- Division of Biorefinery Engineering, State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, P.R. China
- University of Chinese Academy of Sciences, Beijing, P.R. China
| | - Lijun Zhang
- Division of Biorefinery Engineering, State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, P.R. China
- University of Chinese Academy of Sciences, Beijing, P.R. China
| | - Bing Zhao
- Division of Biorefinery Engineering, State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, P.R. China
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Wen Y, Chen H, Zhou X, Deng Q, Zhao C, Gong X. A polyamide resin based method for adsorption of anthocyanins from blackberries. NEW J CHEM 2016. [DOI: 10.1039/c6nj00054a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A polyamide resin was successfully employed for the purification of blackberry anthocyanins and this proved to be an efficient and low-cost method.
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Affiliation(s)
- Yao Wen
- Key laboratory for Information System of Mountainous Areas and Protection of Ecological Environment
- Guizhou Normal University
- Guiyang
- P. R. China
- Guizhou Engineering Laboratory for Quality Control & Evaluation Technology of Medicine
| | - Huaguo Chen
- Key laboratory for Information System of Mountainous Areas and Protection of Ecological Environment
- Guizhou Normal University
- Guiyang
- P. R. China
- Guizhou Engineering Laboratory for Quality Control & Evaluation Technology of Medicine
| | - Xin Zhou
- Key laboratory for Information System of Mountainous Areas and Protection of Ecological Environment
- Guizhou Normal University
- Guiyang
- P. R. China
- Guizhou Engineering Laboratory for Quality Control & Evaluation Technology of Medicine
| | - Qingfang Deng
- Key laboratory for Information System of Mountainous Areas and Protection of Ecological Environment
- Guizhou Normal University
- Guiyang
- P. R. China
- Guizhou Engineering Laboratory for Quality Control & Evaluation Technology of Medicine
| | - Chao Zhao
- Key laboratory for Information System of Mountainous Areas and Protection of Ecological Environment
- Guizhou Normal University
- Guiyang
- P. R. China
- Guizhou Engineering Laboratory for Quality Control & Evaluation Technology of Medicine
| | - Xiaojian Gong
- Key laboratory for Information System of Mountainous Areas and Protection of Ecological Environment
- Guizhou Normal University
- Guiyang
- P. R. China
- Guizhou Engineering Laboratory for Quality Control & Evaluation Technology of Medicine
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Bai B, Li C, Zhao Y, Guo L, Shen Y. ONE-STEP SEPARATION AND PURIFICATION OF RESVERATROL AND POLYDATIN FROM POLYGONUM CUSPIDATUM ON 20% AGAROSE BEADS. J LIQ CHROMATOGR R T 2014. [DOI: 10.1080/10826076.2013.825864] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Bin Bai
- a Key Laboratory of Synthetic and Natural Function Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science, Northwest University , Xi'an , China
| | - Cong Li
- a Key Laboratory of Synthetic and Natural Function Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science, Northwest University , Xi'an , China
| | - Yanding Zhao
- b Xi'an Jiaotong University, Bio-sep Technologies Co. Ltd , Xi'an , China
| | - Li'an Guo
- b Xi'an Jiaotong University, Bio-sep Technologies Co. Ltd , Xi'an , China
| | - Yehua Shen
- a Key Laboratory of Synthetic and Natural Function Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science, Northwest University , Xi'an , China
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Preparative Purification of Epigallocatechin-3-gallate (EGCG) from Tea Polyphenols by Adsorption Column Chromatography. Chromatographia 2014. [DOI: 10.1007/s10337-014-2764-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Zhao C, Liu D, Li C, Fu Y, Yang L, Zu Y. Separation of pinostrobin from pigeon pea [Cajanus cajan (L) Millsp.] leaf extract using a cation exchange resin for catalytic transformation combined with a polyamide resin. Sep Purif Technol 2014. [DOI: 10.1016/j.seppur.2014.06.056] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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15
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Isolation of PCR quality microbial community DNA from heavily contaminated environments. J Microbiol Methods 2014; 102:1-7. [DOI: 10.1016/j.mimet.2014.04.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2013] [Revised: 04/11/2014] [Accepted: 04/11/2014] [Indexed: 11/24/2022]
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Ruan X, Zhan LM, Gao XX, Yan LY, Zhang H, Zhu ZY, Wang Q, Jiang DA. Separation and purification of flavonoid from Taxus remainder extracts free of taxoids using polystyrene and polyamide resin. J Sep Sci 2013; 36:1925-34. [PMID: 23936912 DOI: 10.1002/jssc.201201189] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
An efficient separation process of flavonoid from Taxus wallichiana var. mairei remainder extracts free of taxoids was developed in this study. AB-8 macroporous resin and polyamide resin offered the fine adsorption capacity, and its adsorption rate at 30°C fitted well to the Langmuir and Freundich isotherms. Resin dynamic adsorption and desorption experiments were conducted to optimize the separation process of total flavonoids from T. wallichiana var. mairei remainder extracts free of taxoids. The optimum parameters for adsorption by AB-8 resin were as follows: (1) the concentration of flavonoids in a sample solution of 5.61 mg/mL with a processing volume of 2 bed volume (BV) (60 mL); (2) for desorption, ethanol-water (80:20, v/v), with 6 BV as an eluent at a flow rate of 2 BV/h. After a one-run treatment with AB-8 resin, the content of flavonoids was increased 5.10-fold from 4.05 to 20.65%. The optimum parameters for adsorption by polyamide resin were as follows: processing volume of 2 BV (30 mL); for desorption, ethanol-water (70:30, v/v), with 8 BV as an eluent at a flow rate of 2 BV/h. After one-run treatment with polyamide resin, the content of total flavonoids increased from 20.65 to 65.21%. The method will provide a potential approach for large-scale separation and purification of flavonoid for its wide pharmaceutical use.
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Affiliation(s)
- Xiao Ruan
- College of Life Science, Zhejiang University, Hangzhou, P. R. China
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Yan B, Qu H. Multivariate data analysis of UV spectra in monitoring elution and determining endpoint of chromatography using polyamide column. J Sep Sci 2013; 36:1231-7. [DOI: 10.1002/jssc.201200879] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2012] [Revised: 12/10/2012] [Accepted: 12/26/2012] [Indexed: 11/12/2022]
Affiliation(s)
- Binjun Yan
- Pharmaceutical Informatics Institute; Zhejiang University; Hangzhou China
| | - Haibin Qu
- Pharmaceutical Informatics Institute; Zhejiang University; Hangzhou China
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Sun L, Guo Y, Fu C, Li J, Li Z. Simultaneous separation and purification of total polyphenols, chlorogenic acid and phlorizin from thinned young apples. Food Chem 2012; 136:1022-9. [PMID: 23122158 DOI: 10.1016/j.foodchem.2012.09.036] [Citation(s) in RCA: 98] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2012] [Revised: 08/11/2012] [Accepted: 09/06/2012] [Indexed: 01/07/2023]
Abstract
An efficient preparative separation of polyphenols from thinned young apples (TYA) has been developed in the present study. X-5 resin was verified to offer the best adsorption capacity and desorption ratio for total polyphenols among the eight macroporous resins investigated. Influential factors, such as pH value and concentration of feeding solution, strippant, and adsorption isotherm to the separation of total polyphenols, were successively investigated on X-5 resin. After one run treatment, the phenolic content was increased 2.12-fold from 35.17% to 74.64%, with a recovery yield of 89.35%. Chlorogenic acid and phlorizin were selectively purified using X-5 and polyamide resins. The contents of chlorogenic acid and phlorizin were 15.20% and 97.52% with recovery yields of 89.16% and 64.95%, respectively. The method developed will provide a potential approach for its wide industrial and pharmaceutical use.
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Affiliation(s)
- Lijun Sun
- College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an 710062, PR China
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Phenolic compounds and antioxidant activities of Liriope muscari. Molecules 2012; 17:1797-808. [PMID: 22328078 PMCID: PMC6268958 DOI: 10.3390/molecules17021797] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2011] [Revised: 01/24/2012] [Accepted: 01/31/2012] [Indexed: 11/16/2022] Open
Abstract
Five phenolic compounds, namely N-trans-coumaroyltyramine (1), N-trans-feruloyltyramine (2), N-trans-feruloyloctopamine (3), 5,7-dihydroxy-8-methoxyflavone (4) and (3S)3,5,4′-trihydroxy-7-methoxy-6-methylhomoisoflavanone (5), were isolated from the fibrous roots of Liriope muscari (Liliaceae). Compounds 2–5 were isolated for the first time from the Liriope genus. Their in vitro antioxidant activities were assessed by the DPPH and ABTS scavenging methods with microplate assays. The structure-activity relationships of compounds 1–3 are discussed.
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