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Wang TT, Li CP, Wei YS, Dong ZY, Meng FC, Chen M, Lan XZ. Dracotangusions A and B, two new sesquiterpenes from Dracocephalum tanguticum Maxim. with anti-inflammatory activity. Nat Prod Res 2024:1-7. [PMID: 38303493 DOI: 10.1080/14786419.2024.2305655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Accepted: 01/09/2024] [Indexed: 02/03/2024]
Abstract
Two new guaiane sesquiterpenoids were isolated from the dried aerial parts of Dracocephalum tanguticum Maxim., named as dracotangusions A (1) and B (2), together with four known sesquiterpenoids, which were identified as Curcumenone (3), (4Z,7Z,9Z)-11-Hydroxy-4,7,9-germacratriene-1,6-dione (4), Kobusone (5), and (1S,10S), (4S, 5S)-(+)-germacrone-1(10)-4-diepoxide (6). The structures of isolates were determined by UV, IR, HR-ESI-MS, and NMR analysis. What is noteworthy is that four known sesquiterpenoids were isolated for the first time from the genus of Dracocephalum L. All compounds inhibited the extremely significant difference (p < 0.01) in anti-inflammatory activity, suggesting that these compounds may be promising candidates as an anti-inflammatory agent.
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Affiliation(s)
- Ting-Ting Wang
- The Provincial and Ministerial Co-founded Collaborative Innovation Center for R&D in Xizang Characteristic Agricultural and Animal Husbandry Resources, Xizang Agriculture and Animal Husbandry University, Nyingchi of Xizang, China
- The Center for Xizang Chinese (Tibetan) Medicine Resource, Xizang Agriculture and Animal Husbandry University, Nyingchi of Xizang, China
- Joint Laboratory for Xizang Materia Medica Resources Scientific Protection and Utilization Research of Xizang Medical Research Center of Xizang, Nyingchi of Xizang, China
| | - Cheng-Peng Li
- College of Pharmaceutical Sciences, Southwest University, Chongqing, P. R. China
- Key Laboratory of Luminescence Analysis and Molecular Sensing, Ministry of Education, Southwest University, Chongqing, P. R. China
| | - Yong-Sheng Wei
- The Provincial and Ministerial Co-founded Collaborative Innovation Center for R&D in Xizang Characteristic Agricultural and Animal Husbandry Resources, Xizang Agriculture and Animal Husbandry University, Nyingchi of Xizang, China
- The Center for Xizang Chinese (Tibetan) Medicine Resource, Xizang Agriculture and Animal Husbandry University, Nyingchi of Xizang, China
- Joint Laboratory for Xizang Materia Medica Resources Scientific Protection and Utilization Research of Xizang Medical Research Center of Xizang, Nyingchi of Xizang, China
| | - Zhao-Yue Dong
- College of Pharmaceutical Sciences, Southwest University, Chongqing, P. R. China
- Key Laboratory of Luminescence Analysis and Molecular Sensing, Ministry of Education, Southwest University, Chongqing, P. R. China
| | - Fan-Cheng Meng
- College of Pharmaceutical Sciences, Southwest University, Chongqing, P. R. China
| | - Min Chen
- College of Pharmaceutical Sciences, Southwest University, Chongqing, P. R. China
- Key Laboratory of Luminescence Analysis and Molecular Sensing, Ministry of Education, Southwest University, Chongqing, P. R. China
| | - Xiao-Zhong Lan
- The Provincial and Ministerial Co-founded Collaborative Innovation Center for R&D in Xizang Characteristic Agricultural and Animal Husbandry Resources, Xizang Agriculture and Animal Husbandry University, Nyingchi of Xizang, China
- The Center for Xizang Chinese (Tibetan) Medicine Resource, Xizang Agriculture and Animal Husbandry University, Nyingchi of Xizang, China
- Joint Laboratory for Xizang Materia Medica Resources Scientific Protection and Utilization Research of Xizang Medical Research Center of Xizang, Nyingchi of Xizang, China
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Yang X, Liu Y, Chen T, Wang N, Li H, Zhao J, Li Y. HSCCC Separation of Three Main Compounds from the Crude Extract of Dracocephalum Tanguticum by Using Dimethyl Sulfoxide as Cosolvent. J Chromatogr Sci 2021; 59:175-181. [PMID: 33264388 DOI: 10.1093/chromsci/bmaa094] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2018] [Indexed: 11/13/2022]
Abstract
Separation of natural compounds directly from the crude extract is a challenging work for traditional column chromatography. In the present study, an efficient method for separation of three main compounds from the crude extract of Dracocephalum tanguticum has been successfully established by high-speed counter-current chromatography (HSCCC). The crude extract was directly introduced into HSCCC by using dimethyl sulfoxide as cosolvent. Ethyl acetate/n-butyl alcohol/0.3% glacial acetic acid (4: 1: 5, v/v) system was used and three target compounds with purity higher than 80% were obtained. Preparative HPLC was used for further purification and three target compounds with purity higher than 98% were obtained. The compounds were identified as chlorogenic acid, pedaliin and pedaliin-6″-acetate.
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Affiliation(s)
- Xue Yang
- Qinghai Key Laboratory of Tibetan Medicine Pharmacology and Safety Evaluation, Northwest Institute of Plateau Biology, Chinese Academy of Science, 52 Sanlihe Rd Xining 810001, P.R. China.,Savaid Medical School, University of the Chinese Academy of Sciences, 19B Yuquan Road, Beijing 100049, P.R. China
| | - Yongling Liu
- Food and Pharmaceutical Engineering Institute, Guiyang University, 103 Jianlongdong Rd, Guiyang 550005, P.R. China
| | - Tao Chen
- Qinghai Key Laboratory of Tibetan Medicine Pharmacology and Safety Evaluation, Northwest Institute of Plateau Biology, Chinese Academy of Science, 52 Sanlihe Rd Xining 810001, P.R. China
| | - Nana Wang
- Qinghai Key Laboratory of Tibetan Medicine Pharmacology and Safety Evaluation, Northwest Institute of Plateau Biology, Chinese Academy of Science, 52 Sanlihe Rd Xining 810001, P.R. China.,Savaid Medical School, University of the Chinese Academy of Sciences, 19B Yuquan Road, Beijing 100049, P.R. China
| | - Hongmei Li
- Qinghai Key Laboratory of Tibetan Medicine Pharmacology and Safety Evaluation, Northwest Institute of Plateau Biology, Chinese Academy of Science, 52 Sanlihe Rd Xining 810001, P.R. China
| | - Jingyang Zhao
- Qinghai Key Laboratory of Tibetan Medicine Pharmacology and Safety Evaluation, Northwest Institute of Plateau Biology, Chinese Academy of Science, 52 Sanlihe Rd Xining 810001, P.R. China
| | - Yulin Li
- Qinghai Key Laboratory of Tibetan Medicine Pharmacology and Safety Evaluation, Northwest Institute of Plateau Biology, Chinese Academy of Science, 52 Sanlihe Rd Xining 810001, P.R. China
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Olate-Gallegos C, Barriga A, Vergara C, Fredes C, García P, Giménez B, Robert P. Identification of Polyphenols from Chilean Brown Seaweeds Extracts by LC-DAD-ESI-MS/MS. JOURNAL OF AQUATIC FOOD PRODUCT TECHNOLOGY 2019. [DOI: 10.1080/10498850.2019.1594483] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Carla Olate-Gallegos
- Departamento de Ciencia de los Alimentos y Tecnología Química, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago, Chile
| | - Andrés Barriga
- Unidad de Espectrometría de Masas, CEPEDEQ, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago, Chile
| | - Cristina Vergara
- Instituto de Investigaciones Agropecuarias, INIA, Santiago, Chile
| | - Carolina Fredes
- Departamento de Ciencia de los Alimentos y Tecnología Química, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago, Chile
| | - Paula García
- Departamento de Ciencia de los Alimentos y Tecnología Química, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago, Chile
| | - Begoña Giménez
- Departamento de Ciencia y Tecnología de los Alimentos, Facultad Tecnológica, Universidad de Santiago de Chile, Santiago, Chile
| | - Paz Robert
- Departamento de Ciencia de los Alimentos y Tecnología Química, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago, Chile
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Zhang Y, Zhang L, Liu J, Liang J, Si J, Wu S. Dendrobium officinale leaves as a new antioxidant source. J Funct Foods 2017. [DOI: 10.1016/j.jff.2017.08.006] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
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Li Q, Liu Y, Han L, Liu J, Liu W, Feng F, Zhang J, Xie N. Chemical constituents and quality control of twoDracocephalumspecies based on high-performance liquid chromatographic fingerprints coupled with tandem mass spectrometry and chemometrics. J Sep Sci 2016; 39:4071-4085. [DOI: 10.1002/jssc.201600645] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Revised: 08/11/2016] [Accepted: 08/19/2016] [Indexed: 11/08/2022]
Affiliation(s)
- Qi Li
- Department of Pharmaceutical Analysis; China Pharmaceutical University; Nanjing China
| | - Yiqi Liu
- Department of Pharmaceutical Analysis; China Pharmaceutical University; Nanjing China
| | - Lingfei Han
- Department of Pharmaceutical Analysis; China Pharmaceutical University; Nanjing China
| | - Jiazhuo Liu
- Department of Pharmaceutical Analysis; China Pharmaceutical University; Nanjing China
| | - Wenyuan Liu
- Department of Pharmaceutical Analysis; China Pharmaceutical University; Nanjing China
- Key Laboratory on Protein Chemistry and Structural Biology; China Pharmaceutical University; Nanjing China
| | - Feng Feng
- Key Laboratory of Biomedical Functional Materials; China Pharmaceutical University; Nanjing China
- Department of Natural Medicinal Chemistry; China Pharmaceutical University; Nanjing China
| | - Jie Zhang
- Key Laboratory of Biomedical Functional Materials; China Pharmaceutical University; Nanjing China
- Department of Natural Medicinal Chemistry; China Pharmaceutical University; Nanjing China
| | - Ning Xie
- Jiangxi Qingfeng Pharmaceutical Corporation; Ganzhou China
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Fu F, Wang HL. Metabolomics reveals consistency of the shoot system inMedicago truncatulaby HPLC-UV-ESI-MS/MS. Int J Food Sci Technol 2015. [DOI: 10.1111/ijfs.12857] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Fuyou Fu
- Biology Department; University of Arkansas at Little Rock; 2801 South University Ave. Little Rock AR 72204 USA
| | - Hong Li Wang
- Biology Department; University of Arkansas at Little Rock; 2801 South University Ave. Little Rock AR 72204 USA
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Engida AM, Faika S, Nguyen-Thi BT, Ju YH. Analysis of major antioxidants from extracts of Myrmecodia pendans by UV/visible spectrophotometer, liquid chromatography/tandem mass spectrometry, and high-performance liquid chromatography/UV techniques. J Food Drug Anal 2015; 23:303-309. [PMID: 28911386 PMCID: PMC9351773 DOI: 10.1016/j.jfda.2014.07.005] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2014] [Revised: 07/09/2014] [Accepted: 07/10/2014] [Indexed: 01/27/2023] Open
Abstract
In the present work, heat reflux extraction with ethanol/water (80:20; v/v) as the solvent was used to extract antioxidants from Myrmecodia pendans. The crude extract (CE) was fractionated using hexane and ethyl acetate. Ethyl acetate fraction (EAF) and aqueous fraction were collected. Antioxidant activity against 1,1-diphenyl-2-picrylhydrazyl-radical radical and ferric reducing power of the CE, EAF, and aqueous fraction were evaluated. EAF showed comparable antioxidant activity against 1,1-diphenyl-2-picrylhydrazyl-radical radical and ferric reducing power to those of the CE. UV/visible, liquid chromatography/electrospray ionization/tandem mass spectrometry, and high-performance liquid chromatography were employed for identifying the major antioxidant compounds in the EAF. Three major phenolic compounds (rosmarinic acid, procyanidin B1, and polymer of procyanidin B1) were identified. The first two compounds were confirmed and quantified by high-performance liquid chromatography using authentic standards, but confirmation of the third compound was hampered by a lack of commercial standard. Concentrations of rosmarinic acid and procyanidin B1 in the EAF were found to be 20.688 ±1.573 mg/g dry sample and 3.236 ±0.280 mg/g dry sample, respectively. All these three compounds are reported for the first time in sarang semut.
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Alexandru L, Pizzale L, Conte L, Barge A, Cravotto G. Microwave-assisted extraction of edible Cicerbita alpina shoots and its LC-MS phenolic profile. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2013; 93:2676-2682. [PMID: 23526184 DOI: 10.1002/jsfa.6082] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2012] [Revised: 12/12/2012] [Accepted: 01/29/2013] [Indexed: 05/28/2023]
Abstract
BACKGROUND Crude extracts obtained from the edible shoots of Cicerbita alpina using microwave-assisted extraction have been qualitatively profiled by liquid chromatography coupled with an ion trap mass spectrometry detector and an electrospray ionization interface (LC/ESI-MS(3) ) for their phenolic content. The main challenge of the present investigation was to create a working strategy designed to obtain a rich phenolic profile despite the limited amount of starting plant material and phytochemical data available. RESULTS The best extraction conditions (temperature 90 °C; time 5 min; solvent methanol:water 50:50; sample weight 3 g) were achieved using a full factorial 2(4) experimental design. Fifteen compounds, including flavonoid conjugates and phenolic acid derivatives, were detected and tentatively identified. The total phenolic content varied from 93.58 mg g(-1) gallic acid equivalents (GAE), for the cultivated plant to 10.54 mg g(-1) GAE for the wild one, whereas the total flavonoid content varied from 145.00 mg g(-1) rutin for the cultivated plant to 25.22 mg g(-1) rutin for the wild one. CONCLUSION A total of 11 compounds are herein reported, for the first time, as coming from this plant source.
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Affiliation(s)
- Lavinia Alexandru
- Dipartimento di Scienza e Tecnologia del Farmaco, Università di Torino, 10125, Turin, Italy; Dipartimento di Scienze degli Alimenti, Università di Udine, 33100, Udine, Italy
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Qing LS, Xue Y, Zhang JG, Zhang ZF, Liang J, Jiang Y, Liu YM, Liao X. Identification of flavonoid glycosides in Rosa chinensis flowers by liquid chromatography-tandem mass spectrometry in combination with ¹³C nuclear magnetic resonance. J Chromatogr A 2012; 1249:130-7. [PMID: 22749452 PMCID: PMC3393799 DOI: 10.1016/j.chroma.2012.06.013] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2012] [Revised: 05/04/2012] [Accepted: 06/05/2012] [Indexed: 11/26/2022]
Abstract
Flowers of Rosa chinensis are widely used in traditional Chinese medicine as well as in food industry. Flavonoid glycosides are believed to be the major components in R. chinensis that are responsible for its antioxidant activities. In this work, a liquid chromatography-tandem mass spectrometry (HPLC-MS/MS) method was developed for analysis of flavonoid glycosides presented in ethyl acetate extract of dried R. chinensis flowers. Twelve flavonoid glycosides were separated and detected. By comparing the retention times, UV spectra, and tandem MS fragments with those of respective authentic compounds, eight flavonoid glycosides were unequivocally identified. Although the other four were also identified as flavonoid glycosides, the glycosylation positions could not be determined due to lack of authentic compounds. Fortunately, the glycosylation effects were clearly observed in the (13)C NMR spectrum of the extract. The detailed structural information was, therefore, obtained to identify the four flavonoid glycosides as quercetin-3-O-D-glucoside, quercetin-3-O-D-xyloside, kaempferol-3-O-D-xyloside and quercetin-3-O-D-(6″-coumaroyl)-galactoside. These flavonoid glycosides were detected and identified for the first time in this botanic material. This work reports on the first use of (13)C NMR of a mixture to enhance a rapid HPLC-MS/MS analysis. The proposed analytical protocol was validated with a mixture of authentic flavonoid glycosides.
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Affiliation(s)
- Lin-Sen Qing
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, P.R. China
| | - Ying Xue
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, P.R. China
| | - Jian-Guang Zhang
- Southwest University for Nationalities, Chengdu 610041, P.R. China
| | - Zhi-Feng Zhang
- Southwest University for Nationalities, Chengdu 610041, P.R. China
| | - Jian Liang
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, P.R. China
| | - Yan Jiang
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, P.R. China
| | - Yi-Ming Liu
- Department of Chemistry and Biochemistry, Jackson State University, 1400 Lynch St. Jackson, MS 39110 USA
| | - Xun Liao
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, P.R. China
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Xu JX, Yang M, Deng KJ, Zhou H. Antioxidant Activities of Dracocephalum tanguticum Maxim Extract and Its Up-Regulation on the Expression of Neurotrophic Factors in a Rat Model of Permanent Focal Cerebral Ischemia. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2012; 39:65-81. [DOI: 10.1142/s0192415x11008658] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The aim of this study was to investigate the effect of a BuOH-soluble fraction from Dracocephalum tanguticum Maxim (DME), which contained 52% of total flavonoid, on the cerebral ischemia injury induced by permanent middle cerebral artery occlusion (pMCAO) in rats. RT-PCR and Western blot analysis showed that DME (30 mg/kg/day for seven days) by intragastric administration modulated the mRNA expression and protein synthesis of two neurotrophic factors: brain-derived neurotrophic factor (BDNF) and neurotrophin 3 (NT-3). DME was effective in stimulating BDNF mRNA expression and protein synthesis in the ipsilateral frontal cortex (IFC) of both the sham-operated and pMCAO rats and this effect was also observed in the hippocampus of the pMCAO rats. DME significantly increased NT-3 mRNA expression and protein synthesis in the IFC and hippocampus of the pMCAO rats, although it had no effect on NT-3 expression in the sham-operated groups. Meanwhile, DME also decreased the malondialdehyde contents in the hippocampus of the sham-operated and pMCAO groups, and significantly attenuated the decrease of endogenous antioxidant (superoxide dismutase, glutathione peroxidase and catalase) activities in both the IFC and hippocampus of the rats after ischemia insult injury. Moreover, DME facilitated the neurobehavioral recovery after the cerebral ischemia. These findings suggested that DME has potential for treatment of ischemia-induced brain damage through stimulation of antioxidant activity and neurotrophic factor synthesis.
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Affiliation(s)
- Jin-Xiu Xu
- Key Laboratory for Neuroinformation of Ministry of Education, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, P. R. China
| | - Mu Yang
- Key Laboratory for Neuroinformation of Ministry of Education, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, P. R. China
| | - Ke-Jun Deng
- Key Laboratory for Neuroinformation of Ministry of Education, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, P. R. China
| | - Hong Zhou
- Key Laboratory for Neuroinformation of Ministry of Education, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, P. R. China
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11
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New glycosides from Dracocephalum tanguticum maxim. Arch Pharm Res 2011; 34:2015-20. [PMID: 22210025 DOI: 10.1007/s12272-011-1202-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2011] [Revised: 06/09/2011] [Accepted: 06/14/2011] [Indexed: 10/14/2022]
Abstract
Four new glycosides, luteolin-7-methoxy-3'-O-(3″-O-acetyl)-β-D-gluco pyranuronic acid-6″-methyl ester (1), benzyl-6-[(2E)-2-butenoate]-β-D-glucopyranoside (2), 2-methoxy-4-(2-propen-1-yl)penyl-6-acetate-β-D-glucopyranoside (3), and 2-methoxy-4-(2-propen-1-yl)penyl-6-[(2E)-2-butenoate]-β-D-glucopyranoside (4), along with benzyl-β-D-glucopyranoside (5), 2-methoxy-4-(2-propen-1-yl)penyl-β-D-glucopyranoside (6), and pectolarigenin (7), were isolated from the whole plant of Dracocephalum tanguticum Maxim. The structures of 1-4 were elucidated by detailed spectroscopic analyses, including HR-ESI-MS and 2D NMR spectroscopic data. The inhibitory effects against nitric oxide production in LPS-stimulated RAW264.7 cells of all seven compounds were also evaluated.
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Qiao X, He WN, Xiang C, Han J, Wu LJ, Guo DA, Ye M. Qualitative and quantitative analyses of flavonoids in Spirodela polyrrhiza by high-performance liquid chromatography coupled with mass spectrometry. PHYTOCHEMICAL ANALYSIS : PCA 2011; 22:475-83. [PMID: 21465598 DOI: 10.1002/pca.1303] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2010] [Revised: 09/25/2010] [Accepted: 10/01/2010] [Indexed: 05/15/2023]
Abstract
INTRODUCTION Spirodela polyrrhiza (L.) Schleid. is a traditional Chinese herbal medicine for the treatment of influenza. Despite its wide use in Chinese medicine, no report on quality control of this herb is available so far. OBJECTIVE To establish qualitative and quantitative analytical methods by high-performance liquid chromatography (HPLC) coupled with mass spectrometry (MS) for the quality control of S. polyrrhiza. METHODOLOGY The methanol extract of S. polyrrhiza was analysed by HPLC/ESI-MS(n). Flavonoids were identified by comparing with reference standards or according to their MS(n) (n = 2-4) fragmentation behaviours. Based on LC/MS data, a standardised HPLC fingerprint was established by analysing 15 batches of commercial herbal samples. Furthermore, quantitative analysis was conducted by determining five major flavonoids, namely luteolin 8-C-glucoside, apigenin 8-C-glucoside, luteolin 7-O-glucoside, apigenin 7-O-glucoside and luteolin. RESULTS A total of 18 flavonoids were identified by LC/MS, and 14 of them were reported from this herb for the first time. The HPLC fingerprints contained 10 common peaks, and could differentiate good quality batches from counterfeits. The total contents of five major flavonoids in S. polyrrhiza varied significantly from 4.28 to 19.87 mg/g. CONCLUSION Qualitative LC/MS and quantitative HPLC analytical methods were established for the comprehensive quality control of S. polyrrhiza.
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Affiliation(s)
- Xue Qiao
- The State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, 38 Xueyuan Road, Beijing 100191, China
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van der Hooft JJJ, Vervoort J, Bino RJ, Beekwilder J, de Vos RCH. Polyphenol identification based on systematic and robust high-resolution accurate mass spectrometry fragmentation. Anal Chem 2010; 83:409-16. [PMID: 21141940 DOI: 10.1021/ac102546x] [Citation(s) in RCA: 88] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
High-mass resolution multi-stage mass spectrometry (MS(n)) fragmentation was tested for differentiation and identification of metabolites, using a series of 121 polyphenolic molecules. The MS(n) fragmentation approach is based on the systematic breakdown of compounds, forming a so-called spectral tree. A chip-based nanoelectrospray ionization source was used combined with an ion-trap, providing reproducible fragmentation, and accurate mass read-out in an Orbitrap Fourier transform (FT) MS enabling rapid assignment of elemental formulas to the molecular ions and all fragment ions derived thereof. The used protocol resulted in reproducible MS(n) fragmentation trees up to MS(5). Obtained results were stable over a 5 month time period, a concentration change of 100-fold, and small changes in normalized collision energy, which is key to metabolite annotation and helpful in structure and substructure elucidation. Differences in the hydroxylation and methoxylation patterns of polyphenolic core structures were found to be reflected by the differential fragmentation of the entire molecule, while variation in a glycosylation site displayed reproducible differences in the relative intensities of fragments originating from the same aglycone fragment ion. Accurate MS(n)-based spectral tree data are therefore a powerful tool to distinguish metabolites with similar elemental formula, thereby assisting compound identification in complex biological samples such as crude plant extracts.
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Affiliation(s)
- Justin J J van der Hooft
- Laboratory of Biochemistry, Wageningen University, Dreijenlaan 3, 6703 HA, Wageningen, The Netherlands.
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Zeng Q, Jin HZ, Qin JJ, Fu JJ, Hu XJ, Liu JH, Yan L, Chen M, Zhang WD. Chemical Constituents of Plants from the Genus Dracocephalum. Chem Biodivers 2010; 7:1911-29. [DOI: 10.1002/cbdv.200900188] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Fernández A, Ruiz J, Caminal G, López-Santín J. Development and Validation of a Liquid Chromatography-Mass Spectrometry Assay for the Quantitation of IPTG in E. Coli Fed-Batch Cultures. Anal Chem 2010; 82:5728-34. [DOI: 10.1021/ac100756m] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Alfred Fernández
- Departament d’Enginyeria Química, Escola d’Enginyeria, Unitat de Biocatàlisi Aplicada associada al IQAC (CSIC), Universitat Autònoma de Barcelona, Edifici Q, 08193 Bellaterra (Cerdanyola del Vallés), Spain
| | - Jordi Ruiz
- Departament d’Enginyeria Química, Escola d’Enginyeria, Unitat de Biocatàlisi Aplicada associada al IQAC (CSIC), Universitat Autònoma de Barcelona, Edifici Q, 08193 Bellaterra (Cerdanyola del Vallés), Spain
| | - Gloria Caminal
- Departament d’Enginyeria Química, Escola d’Enginyeria, Unitat de Biocatàlisi Aplicada associada al IQAC (CSIC), Universitat Autònoma de Barcelona, Edifici Q, 08193 Bellaterra (Cerdanyola del Vallés), Spain
| | - Josep López-Santín
- Departament d’Enginyeria Química, Escola d’Enginyeria, Unitat de Biocatàlisi Aplicada associada al IQAC (CSIC), Universitat Autònoma de Barcelona, Edifici Q, 08193 Bellaterra (Cerdanyola del Vallés), Spain
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