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Adsorption and separation of flavonoid aglycones and flavonol aglycones by using Zr(IV) immobilized collagen fiber adsorbent as column packing material. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.120684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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2
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Yang Q, Wu M, Zhu YL, Yang YQ, Mei YZ, Dai CC. The disruption of the MAPKK gene triggering the synthesis of flavonoids in endophytic fungus Phomopsis liquidambaris. Biotechnol Lett 2020; 43:119-132. [PMID: 33128663 DOI: 10.1007/s10529-020-03042-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Accepted: 10/27/2020] [Indexed: 12/26/2022]
Abstract
Flavonoids, which are mainly extracted from plants, are important antioxidants and play an important role in human diseases. However, the growing market demand is limited by low productivity and complex production processes. Herein, the flavonoids biosynthesis pathway of the endophytic fungus Phomopsis liquidambaris was revealed. The mitogen-activated protein kinase kinase (MAPKK) of the strain was disrupted using a newly constructed CRISPR-Cas9 system mediated by two gRNAs which was conducive to cause plasmid loss. The disruption of the MAPKK gene triggered the biosynthesis of flavonoids against stress and resulted in the precipitation of flavonoids from fermentation broth. Naringenin, kaempferol and quercetin were detected in fed-batch fermentation with yields of 5.65 mg/L, 1.96 mg/L and 2.37 mg/L from P. liquidambaris for dry cell weigh using the mixture of glucose and xylose and corn steep powder as carbon source and nitrogen source for 72 h, respectively. The biosynthesis of flavonoids was triggered by disruption of MAPKK gene in P. liquidambaris and the mutant could utilize xylose.
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Affiliation(s)
- Qian Yang
- Jiangsu Key Laboratory for Microbes and Functional Genomics, Jiangsu Engineering and Technology Research Center for Industrialization of Microbial Resources, College of Life Sciences, Nanjing Normal University, Nanjing, 210023, Jiangsu, China
| | - Mei Wu
- Jiangsu Key Laboratory for Microbes and Functional Genomics, Jiangsu Engineering and Technology Research Center for Industrialization of Microbial Resources, College of Life Sciences, Nanjing Normal University, Nanjing, 210023, Jiangsu, China
| | - Ya-Li Zhu
- Jiangsu Key Laboratory for Microbes and Functional Genomics, Jiangsu Engineering and Technology Research Center for Industrialization of Microbial Resources, College of Life Sciences, Nanjing Normal University, Nanjing, 210023, Jiangsu, China
| | - Ya-Qiong Yang
- Jiangsu Key Laboratory for Microbes and Functional Genomics, Jiangsu Engineering and Technology Research Center for Industrialization of Microbial Resources, College of Life Sciences, Nanjing Normal University, Nanjing, 210023, Jiangsu, China
| | - Yan-Zhen Mei
- Jiangsu Key Laboratory for Microbes and Functional Genomics, Jiangsu Engineering and Technology Research Center for Industrialization of Microbial Resources, College of Life Sciences, Nanjing Normal University, Nanjing, 210023, Jiangsu, China.
| | - Chuan-Chao Dai
- Jiangsu Key Laboratory for Microbes and Functional Genomics, Jiangsu Engineering and Technology Research Center for Industrialization of Microbial Resources, College of Life Sciences, Nanjing Normal University, Nanjing, 210023, Jiangsu, China.
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Akopova TA, Demina TS, Cherkaev GV, Khavpachev MA, Bardakova KN, Grachev AV, Vladimirov LV, Zelenetskii AN, Timashev PS. Solvent-free synthesis and characterization of allyl chitosan derivatives. RSC Adv 2019; 9:20968-20975. [PMID: 35515576 PMCID: PMC9066023 DOI: 10.1039/c9ra03830b] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Accepted: 06/26/2019] [Indexed: 11/21/2022] Open
Abstract
The solvent-free synthesis of allyl-substituted chitosan derivatives through reactive co-extrusion of chitosan powder with allyl bromide at shear deformation was performed. For the structural characterization, FTIR and NMR methods were employed. The results were confirmed by chemical analysis. The total content of allyl substituents from 5 to 50 per 100 chitosan units as a function of the component ratio in the reactive mixtures was revealed. Carrying out the reaction without any additives leads to the selective formation of N-alkylated derivatives, whereas in the presence of alkali the ethers of chitosan were preferentially formed. The results suggest that the proposed approach allows significantly higher yield of products to be obtained at high process speeds and significantly lower reagent consumption as compared with the liquid-phase synthesis in organic medium. The synthesized unsaturated derivatives are promising photosensitive components for use in laser stereolithography for fabrication of three-dimensional biocompatible structures with well-defined architectonics. The allyl chitosan derivatives are synthesized, characterized and evaluated as photosensitive components for creation of biomedical materials with well-defined architectonics.![]()
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Affiliation(s)
- Tatiana A. Akopova
- Enikolopov Institute of Synthetic Polymeric Materials
- Russian Academy of Sciences
- Moscow 117393
- Russia
| | - Tatiana S. Demina
- Enikolopov Institute of Synthetic Polymeric Materials
- Russian Academy of Sciences
- Moscow 117393
- Russia
- Institute for Regenerative Medicine
| | - Georgii V. Cherkaev
- Enikolopov Institute of Synthetic Polymeric Materials
- Russian Academy of Sciences
- Moscow 117393
- Russia
| | - Mukhamed A. Khavpachev
- Enikolopov Institute of Synthetic Polymeric Materials
- Russian Academy of Sciences
- Moscow 117393
- Russia
| | - Kseniya N. Bardakova
- Institute for Regenerative Medicine
- Sechenov University
- Moscow 119991
- Russia
- Institute on Photon Technologies
| | - Andrey V. Grachev
- Semenov Institute of Chemical Physics
- Russian Academy of Sciences
- Moscow 119991
- Russia
| | - Leonid V. Vladimirov
- Semenov Institute of Chemical Physics
- Russian Academy of Sciences
- Moscow 119991
- Russia
| | - Alexander N. Zelenetskii
- Enikolopov Institute of Synthetic Polymeric Materials
- Russian Academy of Sciences
- Moscow 117393
- Russia
| | - Petr S. Timashev
- Institute for Regenerative Medicine
- Sechenov University
- Moscow 119991
- Russia
- Institute on Photon Technologies
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Xie J, Xiong J, Ding LS, Chen L, Zhou H, Liu L, Zhang ZF, Hu XM, Luo P, Qing LS. A efficient method to identify cardioprotective components of Astragali Radix using a combination of molecularly imprinted polymers-based knockout extract and activity evaluation. J Chromatogr A 2018; 1576:10-18. [PMID: 30245072 DOI: 10.1016/j.chroma.2018.09.027] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Revised: 09/06/2018] [Accepted: 09/15/2018] [Indexed: 01/06/2023]
Abstract
Although herb medicines have become the major source for new drug discovery, many of them are largely under-explored due to the purity-activity relationship. Efficient identification of bioactive compounds in conventional stepwise separation and isolation has not yet been elucidated. Therefore, we proposed a new separation strategy for holism understanding of herb pharmacology using molecularly imprinted polymers (MIPs). Astragali Radix (AR), important in traditional Chinese medicine, was chosen in this study for multicomponent knockout followed by bioactivity evaluation. We prepared calycosin molecularly imprinted polymers (calycosin-MIPs) which could selectively recognize flavonoid aglycons in AR. The molecular selectivity of calycosin-MIPs as a critical parameter was evaluated using the template and other high content compounds in AR. Based on it, using the calycosin-MIPs material via solid-phase extraction procedures was applied for the knockout of flavonoid aglycons in AR. Finally, hypoxia/reoxygenation model in H9c2 cells was used to evaluate the activity of the AR extract before and after knockout. The results showed that calycosin-MIPs as recognition materials for flavonoid aglycons in AR are applied in one-step separation with high selectivity and tunability. The subextract in the absence of flavonoid aglycons has been demonstrated to clarify the cardio-protective components of AR. In conclusion, this proof-of-principle study is the first one showing that molecular imprinting technology coupled with a bioassay can be used to explore the bioactive variability from the perspective of multicomponent separation of herbal medicine.
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Affiliation(s)
- Jing Xie
- School of Pharmacy, Chengdu Medical College, Chengdu 610500, China; State Key Laboratory for Quality Research in Chinese Medicines, Macau University of Science and Technology, Macau, China
| | - Jing Xiong
- School of Pharmacy, Chengdu Medical College, Chengdu 610500, China
| | - Li-Sheng Ding
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
| | - Li Chen
- State Key Laboratory for Quality Research in Chinese Medicines, Macau University of Science and Technology, Macau, China
| | - Hua Zhou
- State Key Laboratory for Quality Research in Chinese Medicines, Macau University of Science and Technology, Macau, China
| | - Liang Liu
- State Key Laboratory for Quality Research in Chinese Medicines, Macau University of Science and Technology, Macau, China
| | - Zhi-Feng Zhang
- State Key Laboratory for Quality Research in Chinese Medicines, Macau University of Science and Technology, Macau, China
| | - Xue-Mei Hu
- School of Pharmacy, Chengdu Medical College, Chengdu 610500, China
| | - Pei Luo
- State Key Laboratory for Quality Research in Chinese Medicines, Macau University of Science and Technology, Macau, China.
| | - Lin-Sen Qing
- School of Pharmacy, Chengdu Medical College, Chengdu 610500, China; Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China.
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5
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Solid-state synthesis of unsaturated chitosan derivatives to design 3D structures through two-photon-induced polymerization. MENDELEEV COMMUNICATIONS 2015. [DOI: 10.1016/j.mencom.2015.07.017] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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6
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Advancement in the chemical analysis and quality control of flavonoid in Ginkgo biloba. J Pharm Biomed Anal 2015; 113:212-25. [PMID: 25812435 DOI: 10.1016/j.jpba.2015.03.006] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2014] [Revised: 03/04/2015] [Accepted: 03/05/2015] [Indexed: 11/21/2022]
Abstract
Flavonoids are the main active constituents in Ginkgo biloba L., which have been suggested to have broad-spectrum free-radical scavenging activities. This review summarizes the recent advances in the chemical analysis of the flavonoids in G. biloba and its finished products (from 2009 to 2014), including chemical composition, sample preparation, separation, detection and different quality criteria. More than 70 kinds of flavonoids have been identified in this plant. In this review, various analytical approaches as well as their chromatographic conditions have been described, and their advantages/disadvantages are also compared. Quantitative analyses of Ginkgo flavonoids applied by most pharmacopeias start with an acidic hydrolysis followed by determination of the resulting aglycones using HPLC. But increasing direct assay of individual flavonol glycosides found that many adulterated products were still qualified by the present tests. To obtain an authentic and applicable analytical approach for quality evaluation of Ginkgo and its finished products, related suggestions and opinions in the recent publications are mainly discussed in this review. This discussion on chemical analyses of Ginkgo flavonoids will also be found as a significant guide for widely varied natural flavonoids.
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Xiao D, Zhang C, Yuan D, He J, Wu J, Zhang K, Lin R, He H. Magnetic solid-phase extraction based on Fe3O4nanoparticle retrieval of chitosan for the determination of flavonoids in biological samples coupled with high performance liquid chromatography. RSC Adv 2014. [DOI: 10.1039/c4ra13369b] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Schemes of two-step magnetic retrieval of chitosan and its application as MSPE adsorbents for simultaneous extraction and preconcentration of targeted analytes in urine and serum samples.
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Affiliation(s)
- Deli Xiao
- Department of Analytical Chemistry
- China Pharmaceutical University
- Nanjing 210009, China
| | - Chan Zhang
- Department of Analytical Chemistry
- China Pharmaceutical University
- Nanjing 210009, China
| | - Danhua Yuan
- Department of Analytical Chemistry
- China Pharmaceutical University
- Nanjing 210009, China
| | - Jia He
- Department of Analytical Chemistry
- China Pharmaceutical University
- Nanjing 210009, China
| | - Jianrong Wu
- Department of Analytical Chemistry
- China Pharmaceutical University
- Nanjing 210009, China
| | - Kai Zhang
- Department of Analytical Chemistry
- China Pharmaceutical University
- Nanjing 210009, China
| | - Rui Lin
- Yancheng Health Vocational and Technical College
- Yancheng 224005, China
| | - Hua He
- Department of Analytical Chemistry
- China Pharmaceutical University
- Nanjing 210009, China
- Key Laboratory of Drug Quality Control and Pharmacovigilance
- Ministry of Education
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8
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Zhang QX, Li J, Zhang WH, Liao XP, Shi B. Adsorption Chromatography Separation of Baicalein and Baicalin Using Collagen Fiber Adsorbent. Ind Eng Chem Res 2013. [DOI: 10.1021/ie303031j] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Qi-xian Zhang
- Department of Biomass Chemistry and Engineering and ‡Key Laboratory of Leather Chemistry
and Engineering of Ministry of Education, Sichuan University, Chengdu 610065, Sichuan, China
| | - Juan Li
- Department of Biomass Chemistry and Engineering and ‡Key Laboratory of Leather Chemistry
and Engineering of Ministry of Education, Sichuan University, Chengdu 610065, Sichuan, China
| | - Wen-hua Zhang
- Department of Biomass Chemistry and Engineering and ‡Key Laboratory of Leather Chemistry
and Engineering of Ministry of Education, Sichuan University, Chengdu 610065, Sichuan, China
| | - Xue-pin Liao
- Department of Biomass Chemistry and Engineering and ‡Key Laboratory of Leather Chemistry
and Engineering of Ministry of Education, Sichuan University, Chengdu 610065, Sichuan, China
| | - Bi Shi
- Department of Biomass Chemistry and Engineering and ‡Key Laboratory of Leather Chemistry
and Engineering of Ministry of Education, Sichuan University, Chengdu 610065, Sichuan, China
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9
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Dmitrienko SG, Kudrinskaya VA, Apyari VV. Methods of extraction, preconcentration, and determination of quercetin. JOURNAL OF ANALYTICAL CHEMISTRY 2012. [DOI: 10.1134/s106193481204003x] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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10
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Lv JC, Huo SX, Yong KL. SYNTHESIS OF MOLECULARLY IMPRINTED POLYMER OF LOUREIRIN B AND ITS APPLICATION IN SELECTIVE EXTRACTION OF FUNCTIONAL COMPONENTS FROM DRAGON'S BLOOD. J LIQ CHROMATOGR R T 2011. [DOI: 10.1080/10826076.2011.591019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
Affiliation(s)
- Jing-Ci Lv
- a Department of Chemistry , College of Sciences, Shanghai University , Shanghai, People's Republic of China
| | - Shi-Xin Huo
- a Department of Chemistry , College of Sciences, Shanghai University , Shanghai, People's Republic of China
- c Sino Metrohm Technology (Shanghai) Co. Ltd , Shanghai, People's Republic of China
| | - Ke-Lan Yong
- b School of Life Sciences, Shanghai University , Shanghai, People's Republic of China
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11
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Li C, Guo T, Zhou D, Hu Y, Zhou H, Wang S, Chen J, Zhang Z. A novel glutathione modified chitosan conjugate for efficient gene delivery. J Control Release 2011; 154:177-88. [DOI: 10.1016/j.jconrel.2011.06.007] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2011] [Revised: 05/12/2011] [Accepted: 06/01/2011] [Indexed: 01/08/2023]
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12
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Dias A, Braga M, Seabra I, Ferreira P, Gil M, de Sousa H. Development of natural-based wound dressings impregnated with bioactive compounds and using supercritical carbon dioxide. Int J Pharm 2011; 408:9-19. [DOI: 10.1016/j.ijpharm.2011.01.063] [Citation(s) in RCA: 136] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2010] [Revised: 01/08/2011] [Accepted: 01/18/2011] [Indexed: 11/25/2022]
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13
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Beltran A, Borrull F, Marcé R, Cormack P. Molecularly-imprinted polymers: useful sorbents for selective extractions. Trends Analyt Chem 2010. [DOI: 10.1016/j.trac.2010.07.020] [Citation(s) in RCA: 181] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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14
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Li J, Liao X, Liao G, He Q, Zhang W, Shi B. Separation of flavonoid and alkaloid using collagen fiber adsorbent. J Sep Sci 2010; 33:2230-9. [DOI: 10.1002/jssc.200900864] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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15
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van Beek TA, Montoro P. Chemical analysis and quality control of Ginkgo biloba leaves, extracts, and phytopharmaceuticals. J Chromatogr A 2009; 1216:2002-32. [DOI: 10.1016/j.chroma.2009.01.013] [Citation(s) in RCA: 320] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2008] [Revised: 12/31/2008] [Accepted: 01/09/2009] [Indexed: 01/06/2023]
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16
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Yang JF, Zhou DY, Liang ZY. A new polysaccharide from leaf of Ginkgo biloba L. Fitoterapia 2008; 80:43-7. [PMID: 18977417 DOI: 10.1016/j.fitote.2008.09.012] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2008] [Revised: 09/29/2008] [Accepted: 09/29/2008] [Indexed: 01/01/2023]
Abstract
A water-soluble polysaccharide, GPB, was obtained from leaf of Ginkgo biloba L by hot water extraction followed by precipitation with ethanol and fractionation with gel chromatography. The results of HPLC with TSK-GEL column and gel filtration chromatography with Sepharose CL-6B analysis indicated GPB was uniform in polarity and its molecular weight (MW) was about 10 kDa. The structure of GPB was analysed using chemical methods, IR spectroscopy, and NMR spectroscopy. GPB has a high branched structure with polygalactose as core part of backbone. The repeating unit of polygalactose consists of 1,6-linked Galactose (Gal) and 1,3,6-linked Gal.
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Affiliation(s)
- Jing-feng Yang
- College of Bio & Food Technology, Dalian Polytechnic University, Dalian, 116034, PR China
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Wang S, Xu Z, Fang G, Zhang Y, He J. Separation and determination of estrone in environmental and drinking water using molecularly imprinted solid phase extraction coupled with HPLC. J Sep Sci 2008; 31:1181-8. [DOI: 10.1002/jssc.200700575] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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