1
|
Xu XB. Chiral analysis and semi-preparative separation of metconazole stereoisomers by supercritical fluid chromatography and cytotoxicity assessment in vitro. J Sep Sci 2024; 47:e2300655. [PMID: 38014608 DOI: 10.1002/jssc.202300655] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 11/16/2023] [Accepted: 11/17/2023] [Indexed: 11/29/2023]
Abstract
Metconazole is one of the widely-used chiral triazole fungicides in controlling wheat leaf rust, powdery mildew, Fusarium head blight with high efficacy, and so forth. In the current work, the effects of chiral stationary phases, alcoholic modifiers, and column temperature on the chiral separation of metconazole were discussed in detail. Amylose tris(3,5-dimethylphenylcarbamate)-coated chiral stationary phase exhibited much stronger chiral recognition ability toward metconazole stereoisomers in the CO2 /ethanol mixture as compared to the others. Then, a two-step semi-preparative separation of metconazole was performed through supercritical fluid chromatography and high-performance liquid chromatography, and the enantiomeric excess values of four stereoisomers were achieved over 98%. Moreover, the enantioselective cytotoxicity of cis-metconazole against HepG2 cells has been investigated, and the order of the cell proliferation toxicity against HepG2 cells was (1R, 5S)-metconazole > (1S, 5R)-metconazole > the mixture. Briefly, this study would provide valuable information in the preparative separation of optically pure metconazole products through chromatographic techniques and their environmental risk assessment.
Collapse
Affiliation(s)
- Xiang-Bing Xu
- Research and Design Institute, Wuhan Institute of Technology, Wuhan, China
| |
Collapse
|
2
|
Luo QJ, Zhou WC, Liu XY, Li YJ, Xie QL, Wang B, Liu C, Wang WM, Wang W, Zhou XD. Chemical Constituents and α-Glucosidase Inhibitory, Antioxidant and Hepatoprotective Activities of Ampelopsis grossedentata. Molecules 2023; 28:7956. [PMID: 38138447 PMCID: PMC10745659 DOI: 10.3390/molecules28247956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 11/29/2023] [Accepted: 12/01/2023] [Indexed: 12/24/2023] Open
Abstract
Ampelopsis grossedentata is a valuable medicinal and edible plant, which is often used as a traditional tea by the Tujia people in China. A. grossedentata has numerous biological activities and is now widely used in the pharmaceutical and food industries. In this study, two new flavonoids (1-2) and seventeen known compounds (3-19) were isolated and identified from the dried stems and leaves of A. grossedentata. These isolated compounds were characterized by various spectroscopic data including mass spectrometry and nuclear magnetic resonance spectroscopy. All isolates were assessed for their α-glucosidase inhibitory, antioxidant, and hepatoprotective activities, and their structure-activity relationships were further discussed. The results indicated that compound 1 exhibited effective inhibitory activity against α-glucosidase, with an IC50 value of 0.21 μM. In addition, compounds 1-2 demonstrated not only potent antioxidant activities but also superior hepatoprotective properties. The findings of this study could serve as a reference for the development of A. grossedentata-derived products or drugs aimed at realizing their antidiabetic, antioxidant, and hepatoprotective functions.
Collapse
Affiliation(s)
- Qu-Jing Luo
- TCM and Ethnomedicine Innovation & Development International Laboratory, School of Pharmacy, Hunan University of Chinese Medicine, Changsha 410208, China; (Q.-J.L.); (W.-C.Z.); (X.-Y.L.); (Y.-J.L.); (Q.-L.X.); (B.W.); (C.L.); (W.-M.W.)
| | - Wen-Chao Zhou
- TCM and Ethnomedicine Innovation & Development International Laboratory, School of Pharmacy, Hunan University of Chinese Medicine, Changsha 410208, China; (Q.-J.L.); (W.-C.Z.); (X.-Y.L.); (Y.-J.L.); (Q.-L.X.); (B.W.); (C.L.); (W.-M.W.)
| | - Xin-Yi Liu
- TCM and Ethnomedicine Innovation & Development International Laboratory, School of Pharmacy, Hunan University of Chinese Medicine, Changsha 410208, China; (Q.-J.L.); (W.-C.Z.); (X.-Y.L.); (Y.-J.L.); (Q.-L.X.); (B.W.); (C.L.); (W.-M.W.)
| | - Ya-Jie Li
- TCM and Ethnomedicine Innovation & Development International Laboratory, School of Pharmacy, Hunan University of Chinese Medicine, Changsha 410208, China; (Q.-J.L.); (W.-C.Z.); (X.-Y.L.); (Y.-J.L.); (Q.-L.X.); (B.W.); (C.L.); (W.-M.W.)
| | - Qing-Ling Xie
- TCM and Ethnomedicine Innovation & Development International Laboratory, School of Pharmacy, Hunan University of Chinese Medicine, Changsha 410208, China; (Q.-J.L.); (W.-C.Z.); (X.-Y.L.); (Y.-J.L.); (Q.-L.X.); (B.W.); (C.L.); (W.-M.W.)
| | - Bin Wang
- TCM and Ethnomedicine Innovation & Development International Laboratory, School of Pharmacy, Hunan University of Chinese Medicine, Changsha 410208, China; (Q.-J.L.); (W.-C.Z.); (X.-Y.L.); (Y.-J.L.); (Q.-L.X.); (B.W.); (C.L.); (W.-M.W.)
| | - Chao Liu
- TCM and Ethnomedicine Innovation & Development International Laboratory, School of Pharmacy, Hunan University of Chinese Medicine, Changsha 410208, China; (Q.-J.L.); (W.-C.Z.); (X.-Y.L.); (Y.-J.L.); (Q.-L.X.); (B.W.); (C.L.); (W.-M.W.)
- Zhangjiajie Meicha Technology Research Center, Hunan Qiankun Biotechnology Co., Ltd., Zhangjiajie 427099, China
| | - Wen-Mao Wang
- TCM and Ethnomedicine Innovation & Development International Laboratory, School of Pharmacy, Hunan University of Chinese Medicine, Changsha 410208, China; (Q.-J.L.); (W.-C.Z.); (X.-Y.L.); (Y.-J.L.); (Q.-L.X.); (B.W.); (C.L.); (W.-M.W.)
- Zhangjiajie Meicha Technology Research Center, Hunan Qiankun Biotechnology Co., Ltd., Zhangjiajie 427099, China
| | - Wei Wang
- TCM and Ethnomedicine Innovation & Development International Laboratory, School of Pharmacy, Hunan University of Chinese Medicine, Changsha 410208, China; (Q.-J.L.); (W.-C.Z.); (X.-Y.L.); (Y.-J.L.); (Q.-L.X.); (B.W.); (C.L.); (W.-M.W.)
| | - Xu-Dong Zhou
- TCM and Ethnomedicine Innovation & Development International Laboratory, School of Pharmacy, Hunan University of Chinese Medicine, Changsha 410208, China; (Q.-J.L.); (W.-C.Z.); (X.-Y.L.); (Y.-J.L.); (Q.-L.X.); (B.W.); (C.L.); (W.-M.W.)
| |
Collapse
|
3
|
Sun J, Wang Y, Tang W, Gong J. Enantioselectivity of chiral dihydromyricetin in multicomponent solid solutions regulated by subtle structural mutation. IUCRJ 2023; 10:164-176. [PMID: 36692859 PMCID: PMC9980384 DOI: 10.1107/s2052252523000118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Accepted: 01/04/2023] [Indexed: 06/17/2023]
Abstract
Multicomponent crystals of a chiral drug with non-chiral components have attracted increasing attention in the application of enantiomer purification and regulation of the physicochemical properties of crystalline materials. Crystalline solid solutions provide opportunities for fine-tuning material properties because of continuously adjustable component stoichiometry ratios. The synthesis, crystal structure, thermodynamics and solid-state enantioselectivity of a series of multicomponent crystals of chiral dihydromyricetin (DMY) with caffeine (CAF) or theophylline (THE) were investigated and the results reveal how the subtle change of molecular structure of the coformer dictates the enantiomer selectivity in multicomponent cocrystals. A series of multicomponent cocrystal solvates of chiral DMY with CAF and THE were synthesized by the slurry cocrystallization method in acetonitrile. Although most racemic mixtures crystallize as racemic compounds or conglomerates, both DMY-CAF and DMY-THE crystallize as chiral solid solutions, unveiled by pseudo-binary melt phase diagrams and pseudo-ternary solution phase diagrams. Crystal structures of Rac-DMY-CAF, R,R-DMY-CAF, Rac-DMY-THE and R,R-DMY-THE are reported for the first time via single-crystal X-ray diffraction, displaying two distinct types of solid solution differing in mixing scale of enantiomers spanning several orders of magnitude. Surprisingly, this remarkable impact on enantiomer discrimination was simply achieved by the reduction of a methyl group of CAF to the THE coformer, which was further rationalized from their crystal structures and intermolecular interactions. Collectively, this work has demonstrated that a subtle change in the molecular structure of a coformer can regulate enantioselectivity in crystalline materials, guiding the purification of chiral racemic compounds via the cocrystallization method and the design of solid-solution crystalline materials.
Collapse
Affiliation(s)
- Jie Sun
- School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, The Co-Innovation Center of Chemistry and Chemical Engineering of Tianjin, Tianjin University, Weijin Road, Tianjin 300072, People’s Republic of China
| | - Yaoguo Wang
- School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, The Co-Innovation Center of Chemistry and Chemical Engineering of Tianjin, Tianjin University, Weijin Road, Tianjin 300072, People’s Republic of China
| | - Weiwei Tang
- School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, The Co-Innovation Center of Chemistry and Chemical Engineering of Tianjin, Tianjin University, Weijin Road, Tianjin 300072, People’s Republic of China
| | - Junbo Gong
- School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, The Co-Innovation Center of Chemistry and Chemical Engineering of Tianjin, Tianjin University, Weijin Road, Tianjin 300072, People’s Republic of China
| |
Collapse
|
4
|
Ares AM, Bernal J, Janvier A, Toribio L. CHIRAL AND ACHIRAL SEPARATION OF TEN FLAVANONES USING SUPERCRITICAL FLUID CHROMATOGRAPHY. APPLICATION TO BEE POLLEN ANALYSIS. J Chromatogr A 2022; 1685:463633. [DOI: 10.1016/j.chroma.2022.463633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 10/28/2022] [Accepted: 10/30/2022] [Indexed: 11/06/2022]
|
5
|
Teng Y, Gu C, Chen Z, Jiang H, Xiong Y, Liu D, Xiao D. Advances and applications of chiral resolution in pharmaceutical field. Chirality 2022; 34:1094-1119. [PMID: 35676772 DOI: 10.1002/chir.23453] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 03/07/2022] [Accepted: 04/12/2022] [Indexed: 11/07/2022]
Abstract
The attention to chiral drugs has been raised to an unprecedented level as drug discovery and development strategies grow rapidly. However, separation of enantiomers is still a huge task, which leads to an increasing significance to equip a wider range of expertise in chiral separation science to meet the current and future challenges. In the last few decades, remarkable progress of chiral resolution has been achieved. This review summarizes and classifies chiral resolution methods in analytical scale and preparative scale systematically and comprehensively, including crystallization-based method, inclusion complexation, chromatographic separation, capillary electrophoresis, kinetic resolution, liquid-liquid extraction, membrane-based separation, and especially one bold new progress based on chiral-induced spin selectivity theory. The advances and recent applications will be presented in detail, in which the contents may bring more thinking to wide-ranging readers in various professional fields, from analytical chemistry, pharmaceutical chemistry, natural medicinal chemistry, to manufacturing of drug production.
Collapse
Affiliation(s)
- Yan Teng
- Department of Analytical Chemistry, China Pharmaceutical University, Nanjing, China
| | - Chenglu Gu
- Department of Analytical Chemistry, China Pharmaceutical University, Nanjing, China
| | - Zhuhui Chen
- Department of Analytical Chemistry, China Pharmaceutical University, Nanjing, China
| | - Hui Jiang
- Department of Analytical Chemistry, China Pharmaceutical University, Nanjing, China
| | - Yue Xiong
- Department of Analytical Chemistry, China Pharmaceutical University, Nanjing, China
| | - Dong Liu
- Anhui Engineering Laboratory for Conservation and Sustainable Utilization of Traditional Chinese Medicine Resources, School of Biological and Pharmaceutical Engineering, West Anhui University, Liu'an, China
| | - Deli Xiao
- Department of Analytical Chemistry, China Pharmaceutical University, Nanjing, China
- Key Laboratory of Drug Quality Control and Pharmacovigilance (China Pharmaceutical University), Ministry of Education, Nanjing, China
- Key Laboratory of Biomedical Functional Materials, China Pharmaceutical University, Nanjing, China
| |
Collapse
|
6
|
A one-step sample pretreatment and loading method for complex sample separation with supercritical fluid chromatography. J Supercrit Fluids 2022. [DOI: 10.1016/j.supflu.2022.105516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
7
|
Zhang H, Caprioli G, Hussain H, Khoi Le NP, Farag MA, Xiao J. A multifaceted review on dihydromyricetin resources, extraction, bioavailability, biotransformation, bioactivities, and food applications with future perspectives to maximize its value. EFOOD 2021. [DOI: 10.53365/efood.k/143518] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Natural bioactive compounds present a better alternative to prevent and treat chronic diseases owing to their lower toxicity and abundant resources. (+)-Dihydromyricetin (DMY) is a flavanonol, possessing numerous interesting bioactivities with abundant resources. This review provides a comprehensive overview of the recent advances in DMY natural resources, stereoisomerism, physicochemical properties, extraction, biosynthesis, pharmacokinetics, and biotransformation. Stereoisomerism of DMY should be considered for better indication of its efficacy. Biotechnological approach presents a potential tool for the production of DMY using microbial cell factories. DMY high instability is related to its powerful antioxidant capacity due to pyrogallol moiety in ring B, and whether preparation of other analogues could demonstrate improved properties. DMY demonstrates poor bioavailability based on its low solubility and permeability with several attempts to improve its pharmacokinetics and efficacy. DMY possesses various pharmacological effects, which have been proven by many in vitro and in vivo experiments, while clinical trials are rather scarce, with underlying action mechanisms remaining unclear. Consequently, to maximize the usefulness of DMY in nutraceuticals, improvement in bioavailability, and better understanding of its actions mechanisms and drug interactions ought to be examined in the future along with more clinical evidence.
Collapse
|
8
|
Ganzera M, Zwerger M. Analysis of natural products by SFC – Applications from 2015 to 2021. Trends Analyt Chem 2021. [DOI: 10.1016/j.trac.2021.116463] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
|
9
|
Recent advances in chiral analysis for biosamples in clinical research and forensic toxicology. Bioanalysis 2021; 13:493-511. [PMID: 33719527 DOI: 10.4155/bio-2020-0330] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
This article covers current methods and applications in chiral analysis from 2010 to 2020 for biosamples in clinical research and forensic toxicology. Sample preparation for aqueous and solid biological samples prior to instrumental analysis were discussed in the article. GC, HPLC, capillary electrophoresis and sub/supercritical fluid chromatography provide the efficient tools for chiral drug analysis coupled to fluorescence, UV and MS detectors. The application of chiral analysis is discussed in the article, which involves differentiation between clinical use and drug abuse, pharmacokinetic studies, pharmacology/toxicology evaluations and chiral inversion. Typical chiral analytes, including amphetamines and their analogs, anesthetics, psychotropic drugs, β-blockers and some other chiral compounds, are also reviewed.
Collapse
|
10
|
Carreira AR, Ferreira AM, Almeida MR, Coutinho JA, Sintra TE. Propranolol resolution using enantioselective biphasic systems. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2020.117682] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
|
11
|
Speybrouck D, Howsam M, Lipka E. Recent developments in preparative-scale supercritical fluid- and liquid chromatography for chiral separations. Trends Analyt Chem 2020. [DOI: 10.1016/j.trac.2020.116090] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
|
12
|
Li G, Li H, Lyu Y, Zeng W, Zhou J. Enhanced Biosynthesis of Dihydromyricetin in Saccharomyces cerevisiae by Coexpression of Multiple Hydroxylases. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:14221-14229. [PMID: 33205970 DOI: 10.1021/acs.jafc.0c05261] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Dihydromyricetin (DHM) is a traditional plant-extracted flavonoid with some health benefits. This study aimed to metabolically engineer the strains for DHM bioproduction. Two strains of BK-11 and BQ-21 were integrated with flavonoid 3-hydroxylase (F3H) or both F3H and flavonoid 3'-hydroxylase (F3'H). The resulting strains have expressed the enzymes of GmCPR and SlF3'5'H, and then, the promoters of INO1p and TDH1p were used to enhance further the DHM production from naringenin in Saccharomyces cerevisiae. Through multiple-copy integration, 709.6 mg/L DHM was obtained by adding 2.5 g/L naringenin in a 5 L bioreactor, implying that the synergistic effect between F3'H and flavonoid 3'5'-hydroxylase is likely to promote the DHM production. An yield of 246.4 mg/L DHM was obtained from glucose by deleting genes for branch pathways and integrating PhCHS, MsCHI, Pc4CL, and FjTAL. To our knowledge, this is the highest production reported for the de novo biosynthesis of DHM.
Collapse
Affiliation(s)
- Guangjian Li
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
- National Engineering Laboratory for Cereal Fermentation Technology (NELCF), Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
- Jiangsu Provisional Research Center for Bioactive Product Processing Technology, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
| | - Hongbiao Li
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
- National Engineering Laboratory for Cereal Fermentation Technology (NELCF), Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
- Jiangsu Provisional Research Center for Bioactive Product Processing Technology, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
| | - Yunbin Lyu
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
- National Engineering Laboratory for Cereal Fermentation Technology (NELCF), Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
- Jiangsu Provisional Research Center for Bioactive Product Processing Technology, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
| | - Weizhu Zeng
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
| | - Jingwen Zhou
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
- National Engineering Laboratory for Cereal Fermentation Technology (NELCF), Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
- Jiangsu Provisional Research Center for Bioactive Product Processing Technology, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu 214122, China
| |
Collapse
|
13
|
Protective effects of dihydromyricetin on primary hippocampal astrocytes from cytotoxicity induced by comorbid diabetic neuropathic pain and depression. Purinergic Signal 2020; 16:585-599. [PMID: 33155081 DOI: 10.1007/s11302-020-09752-9] [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: 08/18/2020] [Accepted: 10/26/2020] [Indexed: 01/28/2023] Open
Abstract
Activated astrocytes play a key role in diabetic neuropathic pain and depression. We aimed to assess the protective effects of dihydromyricetin (DHM) on primary hippocampal astrocytes cultured with high glucose (HG), substance P (SP), and corticosterone (CORT). Culturing with HG + SP + CORT resulted in damage to primary hippocampal astrocytes, which simulates the clinical damage caused by comorbidity of diabetic neuropathic pain and depression. Western blot, qPCR, and immunofluorescence analyses revealed that HG + SP + CORT increased P2X7 receptor expression in primary hippocampal astrocytes, which was reversed by DHM treatment. Further, HG + SP + CORT elevated TNF-α, IL-1β, free Ca2+, and ERK1/2 phosphorylation levels, which was inhibited by DHM or P2X7 shRNA treatment. Moreover, DHM significantly reduced the P2X7 agonist-activated currents in HEK293 cells transfected with the P2X7 receptor. These findings suggest that DHM can protect primary hippocampal astrocytes cultured with HG + SP + CORT from P2X7 receptor-mediated damage. Culturing cells with HG + SP + CORT might be a viable cell model for cellular injury exploration of diabetic comorbid pain and depression.
Collapse
|
14
|
Applications of supercritical fluid chromatography technique in current bioanalysis and pharmaceutical analysis. Bioanalysis 2020; 12:1347-1351. [PMID: 32975435 DOI: 10.4155/bio-2020-0231] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
|
15
|
Umair M, Jabbar S, Sultana T, Ayub Z, Abdelgader SA, Xiaoyu Z, Chong Z, Fengxia L, Xiaomei B, Zhaoxin L. Chirality of the biomolecules enhanced its stereospecific action of dihydromyricetin enantiomers. Food Sci Nutr 2020; 8:4843-4856. [PMID: 32994946 PMCID: PMC7500803 DOI: 10.1002/fsn3.1766] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 06/06/2020] [Accepted: 06/13/2020] [Indexed: 02/03/2023] Open
Abstract
The present study explores the effect of chirality of the biological macromolecules, its functional aspects, and its interaction with other food components. Dihydromyricetin (DHM) is a natural novel flavonol isolated from the vine tea (Ampelopsis grossedentata) leaves. However, limited progress in enantiopure separation methods of such compounds hinder in the development of enantiopure functional studies. This study is an attempt to develop a simple, accurate, and sensitive extraction method for the separation of the enantiopure DHM from vine tea leaves. In addition, the identification and purity of the extracted enantiopure (-)-DHM were further determined by the proton nuclear magnetic resonance (1H-NMR) and the carbon nuclear magnetic resonance (13C-NMR). The study further evaluates the antimicrobial activity of isolated (-)-DHM in comparison with racemate (+)-DHM, against selected foodborne pathogens, whereas the action mode of enantiopure (-)-DHM to increase the integrity and permeability of the bacterial cell membrane was visualized by confocal laser scanning microscopy using green fluorescence nucleic acid dye (SYTO-9) and propidium iodide (PI). Moreover, the morphological changes in the bacterial cell structure were observed through field emission scanning electron microscope. During analyzing the cell morphology of B. cereus (AS11846), it was confirmed that enantiopure (-)-DHM could increase the cell permeability that leads to the released of internal cell constituents and, thus, causes cell death. Therefore, the present study provides an insight into the advancement of enantiopure isolation along with its antimicrobial effect which could be served as an effective approach of biosafety.
Collapse
Affiliation(s)
- Muhammad Umair
- College of Food Science and TechnologyNanjing Agriculture UniversityNanjingChina
| | - Saqib Jabbar
- Food Science Research Institute (FSRI)National Agricultural Research Centre (NARC)IslamabadPakistan
| | - Tayyaba Sultana
- College of Public AdministrationNanjing Agriculture UniversityNanjingChina
| | - Zubaria Ayub
- Institute of Home SciencesUniversity of AgricultureFaisalabadPakistan
| | | | - Zhu Xiaoyu
- College of Food Science and TechnologyNanjing Agriculture UniversityNanjingChina
| | - Zhang Chong
- College of Food Science and TechnologyNanjing Agriculture UniversityNanjingChina
| | - Lu Fengxia
- College of Food Science and TechnologyNanjing Agriculture UniversityNanjingChina
| | - Bie Xiaomei
- College of Food Science and TechnologyNanjing Agriculture UniversityNanjingChina
| | - Lu Zhaoxin
- College of Food Science and TechnologyNanjing Agriculture UniversityNanjingChina
| |
Collapse
|