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Li G, Lu PX, Liang HZ, Zheng W, Chen XJ, Zhang J, Song J, Yang G, Wang YX, Zhang T, Guo BL, Ma BP. An effective and high-throughput sample preparation method involving demalonylation followed by an ultrahigh-performance liquid chromatography-charged aerosol detector for analyzing gypenoside XLIX and gypenoside A in Gynostemma longipes. J Pharm Biomed Anal 2023; 230:115393. [PMID: 37062206 DOI: 10.1016/j.jpba.2023.115393] [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: 01/09/2023] [Revised: 04/10/2023] [Accepted: 04/11/2023] [Indexed: 04/18/2023]
Abstract
Gypenosides (Gps) are the major bioactive components in Gynostemma species. They include neutral Gps and acidic malonylgypenosides (MGps). MGps are abundant in Gynostemma species and can be transformed into corresponding Gps via extraction, concentration, and drying. If only the Gps were quantified and MGps were ignored, the quality of Gynostemma species would be underestimated. This study aimed to develop a sample preparation method involving demalonylation and ultrahigh-performance liquid chromatography-charged aerosol detector (UHPLC-CAD) analysis to determine the contents of gypenoside XLIX (Gp XLIX) and gypenoside A (Gp A). First, the optimized ultrasonic extraction method was established to extract G. longipes powder ultrasonically. Then, the extracted solution was put into a closed container (centrifuge tube) and heated in a water bath at 95 °C. Then, MGps were converted into corresponding Gps. The proposed preparation method was compared with the other three methods, including water bath reflux heating, alkali hydrolysis, and extraction of heated powder, and was shown to exhibit higher conversion and better convenience. Subsequently, an UHPLC-CAD method was established and validated. Gp XLIX and Gp A showed excellent linear correlations between 15.55 and 248.8 μg/mL and 24.10-385.5 μg/mL, respectively (R2 > 0.999). The limit of detection was 1.40 ng (Gp XLIX) and 2.41 ng (Gp A), and the limit of quantification was 7.77 ng and 14.46 ng, respectively. The relative standard deviation for precision, stability, and repeatability was 0.63-3.15%. The average recovery of Gp XLIX and Gp A was 98.97% and 98.23%, respectively. The established method was applied for determining Gp XLIX and Gp A contents in wild or cultivated G. longipes samples collected from the Qinba Mountains area. The contents of Gp XLIX and Gp A were 5.16-23.02 mg/g and 15.78-54.55 mg/g, respectively. Conclusively, the proposed sample preparation and analysis method could be used for the quality control and evaluation of G. longipes.
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Affiliation(s)
- Gang Li
- Guangdong Pharmaceutical University, Guangzhou 510060, China; Beijing Institute of Radiation Medicine, Beijing 100850, China
| | - Peng-Xin Lu
- Guangdong Pharmaceutical University, Guangzhou 510060, China; Beijing Institute of Radiation Medicine, Beijing 100850, China
| | - Hai-Zhen Liang
- Beijing Institute of Radiation Medicine, Beijing 100850, China
| | - Wei Zheng
- Beijing Institute of Radiation Medicine, Beijing 100850, China
| | - Xiao-Juan Chen
- Beijing Institute of Radiation Medicine, Beijing 100850, China
| | - Jie Zhang
- Beijing Institute of Radiation Medicine, Beijing 100850, China
| | - Juan Song
- Beijing Institute of Radiation Medicine, Beijing 100850, China
| | - Guang Yang
- Guangdong Pharmaceutical University, Guangzhou 510060, China; Beijing Institute of Radiation Medicine, Beijing 100850, China
| | - Ya-Xi Wang
- AnKang Chia Tai Pharmaceutical Co. Ltd., Ankang 725000, China
| | - Tao Zhang
- AnKang Chia Tai Pharmaceutical Co. Ltd., Ankang 725000, China
| | - Bao-Lin Guo
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China
| | - Bai-Ping Ma
- Guangdong Pharmaceutical University, Guangzhou 510060, China; Beijing Institute of Radiation Medicine, Beijing 100850, China.
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Li X, Liu J, Zuo TT, Hu Y, Li Z, Wang HD, Xu XY, Yang WZ, Guo DA. Advances and challenges in ginseng research from 2011 to 2020: the phytochemistry, quality control, metabolism, and biosynthesis. Nat Prod Rep 2022; 39:875-909. [PMID: 35128553 DOI: 10.1039/d1np00071c] [Citation(s) in RCA: 45] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Covering: 2011 to the end of 2020Panax species (Araliaceae), particularly P. ginseng, P. quinquefolius, and P. notoginseng, have a long history of medicinal use because of their remarkable tonifying effects, and currently serve as crucial sources for various healthcare products, functional foods, and cosmetics, aside from their vast clinical preparations. The huge market demand on a global scale prompts the continuous prosperity in ginseng research concerning the discovery of new compounds, precise quality control, ADME (absorption/disposition/metabolism/excretion), and biosynthesis pathways. Benefitting from the ongoing rapid development of analytical technologies, e.g. multi-dimensional chromatography (MDC), personalized mass spectrometry (MS) scan strategies, and multi-omics, highly recognized progress has been made in driving ginseng analysis towards "systematicness, integrity, personalization, and intelligentization". Herein, we review the advances in the phytochemistry, quality control, metabolism, and biosynthesis pathway of ginseng over the past decade (2011-2020), with 410 citations. Emphasis is placed on the introduction of new compounds isolated (saponins and polysaccharides), and the emerging novel analytical technologies and analytical strategies that favor ginseng's authentic use and global consumption. Perspectives on the challenges and future trends in ginseng analysis are also presented.
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Affiliation(s)
- Xue Li
- State Key Laboratory of Component-based Chinese Medicine, Tianjin Key Laboratory of TCM Chemistry and Analysis, Tianjin University of Traditional Chinese Medicine, 10 Poyanghu Road, Jinghai, Tianjin 301617, China.
| | - Jie Liu
- State Key Laboratory of Component-based Chinese Medicine, Tianjin Key Laboratory of TCM Chemistry and Analysis, Tianjin University of Traditional Chinese Medicine, 10 Poyanghu Road, Jinghai, Tianjin 301617, China.
| | - Tian-Tian Zuo
- State Key Laboratory of Component-based Chinese Medicine, Tianjin Key Laboratory of TCM Chemistry and Analysis, Tianjin University of Traditional Chinese Medicine, 10 Poyanghu Road, Jinghai, Tianjin 301617, China.
| | - Ying Hu
- State Key Laboratory of Component-based Chinese Medicine, Tianjin Key Laboratory of TCM Chemistry and Analysis, Tianjin University of Traditional Chinese Medicine, 10 Poyanghu Road, Jinghai, Tianjin 301617, China.
| | - Zheng Li
- State Key Laboratory of Component-based Chinese Medicine, Tianjin Key Laboratory of TCM Chemistry and Analysis, Tianjin University of Traditional Chinese Medicine, 10 Poyanghu Road, Jinghai, Tianjin 301617, China. .,College of Pharmaceutical Engineering of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Jinghai, Tianjin 301617, China
| | - Hong-da Wang
- State Key Laboratory of Component-based Chinese Medicine, Tianjin Key Laboratory of TCM Chemistry and Analysis, Tianjin University of Traditional Chinese Medicine, 10 Poyanghu Road, Jinghai, Tianjin 301617, China.
| | - Xiao-Yan Xu
- State Key Laboratory of Component-based Chinese Medicine, Tianjin Key Laboratory of TCM Chemistry and Analysis, Tianjin University of Traditional Chinese Medicine, 10 Poyanghu Road, Jinghai, Tianjin 301617, China.
| | - Wen-Zhi Yang
- State Key Laboratory of Component-based Chinese Medicine, Tianjin Key Laboratory of TCM Chemistry and Analysis, Tianjin University of Traditional Chinese Medicine, 10 Poyanghu Road, Jinghai, Tianjin 301617, China.
| | - De-An Guo
- State Key Laboratory of Component-based Chinese Medicine, Tianjin Key Laboratory of TCM Chemistry and Analysis, Tianjin University of Traditional Chinese Medicine, 10 Poyanghu Road, Jinghai, Tianjin 301617, China. .,Shanghai Research Center for Modernization of Traditional Chinese Medicine, National Engineering Laboratory for TCM Standardization Technology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Shanghai 201203, China
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Nguyen HT, Vu-Huynh KL, Nguyen HM, Le HT, Le THV, Park JH, Nguyen MD. Evaluation of the Saponin Content in Panax vietnamensis Acclimatized to Lam Dong Province by HPLC-UV/CAD. Molecules 2021; 26:5373. [PMID: 34500805 PMCID: PMC8433671 DOI: 10.3390/molecules26175373] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Revised: 08/26/2021] [Accepted: 08/30/2021] [Indexed: 11/23/2022] Open
Abstract
Panax vietnamensis, or Vietnamese ginseng (VG), an endemic Panax species in Vietnam, possesses a unique saponin profile and interesting biological activities. This plant is presently in danger of extinction due to over-exploitation, resulting in many preservation efforts towards the geographical acclimatization of VG. Yet, no information on the saponin content of the acclimatized VG, an important quality indicator, is available. Here, we analyzed the saponin content in the underground parts of two- to five-year-old VG plants acclimatized to Lam Dong province. Nine characteristic saponins, including notoginsenoside-R1, ginsenoside-Rg1, -Rb1, -Rd, majonoside-R1, -R2 vina-ginsenoside-R2, -R11, and pseudoginsenoside-RT4, were simultaneously determined by HPLC coupled with UV and with a charged aerosol detector (CAD). Analyzing the results illustrated that the detection of characteristic ocotillol-type saponins in VG by CAD presented a superior capacity compared with that of UV, thus implying a preferential choice of CAD for the analysis of VG. The quantitative results indicating the saponin content in the underground parts of VG showed an increasing tendency from two to five years old, with the root and the rhizome exhibiting different saponin accumulation patterns. This is the first study that reveals the preliminary success of VG acclimatization and thereby encourages the continuing efforts to develop this valuable saponin-rich plant.
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Affiliation(s)
- Huy Truong Nguyen
- Faculty of Pharmacy, Ton Duc Thang University, Ho Chi Minh City 700000, Vietnam; (H.T.N.); (K.L.V.-H.); (H.M.N.); (H.T.L.)
| | - Kim Long Vu-Huynh
- Faculty of Pharmacy, Ton Duc Thang University, Ho Chi Minh City 700000, Vietnam; (H.T.N.); (K.L.V.-H.); (H.M.N.); (H.T.L.)
| | - Hien Minh Nguyen
- Faculty of Pharmacy, Ton Duc Thang University, Ho Chi Minh City 700000, Vietnam; (H.T.N.); (K.L.V.-H.); (H.M.N.); (H.T.L.)
| | - Huong Thuy Le
- Faculty of Pharmacy, Ton Duc Thang University, Ho Chi Minh City 700000, Vietnam; (H.T.N.); (K.L.V.-H.); (H.M.N.); (H.T.L.)
| | - Thi Hong Van Le
- Faculty of Pharmacy, University of Medicine and Pharmacy at Ho Chi Minh City, Ho Chi Minh City 700000, Vietnam;
| | - Jeong Hill Park
- College of Pharmacy, Seoul National University, Seoul 08826, Korea
| | - Minh Duc Nguyen
- Faculty of Pharmacy, Ton Duc Thang University, Ho Chi Minh City 700000, Vietnam; (H.T.N.); (K.L.V.-H.); (H.M.N.); (H.T.L.)
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Xie M, Yu Y, Zhu Z, Deng L, Ren B, Zhang M. Simultaneous determination of six main components in Bushen Huoxue prescription by HPLC-CAD. J Pharm Biomed Anal 2021; 201:114087. [PMID: 33932858 DOI: 10.1016/j.jpba.2021.114087] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 04/13/2021] [Accepted: 04/16/2021] [Indexed: 11/30/2022]
Abstract
BACKGROUND The Bushen Huoxue prescription is a traditional Chinese medicine formula treating diabetic retinopathy, which was developed by our research group. Catalpol, puerarin, salvianolic acid B, ginsenoside Rg1, ginsenoside Rb1 and ginsenoside Rd are six of main effective components, which could be partly representative of this prescription. The corona charged aerosol detector (corona CAD) is one kind of universal detectors equipped with the high performance liquid chromatography (HPLC). The CAD has many advantages for the analysis of complex mixtures, but too few applications in traditional Chinese medicine compounds. OBJECTIVE The aims of this study are to establish a method for the determination of six components in Bushen Huoxue prescription, and to increase the use of the CAD in traditional Chinese medicine compounds. METHODS HPLC-CAD analysis was performed on an Inertsil ODS-SP (4.6 mm × 250 mm, 5 μm) with a mobile phase consisting of 0.5 % formic acid solution(A)-acetonitrile(B) at a flow rate of 1 mL/min (0-7 min, 1 % B; 7-12 min, 1 %-12 % B; 12-22 min, 12 %-19 % B; 22-40 min, 19 %-28 % B; 40-43 min, 28 %-33 % B; 43-50 min, 33 % B; 50-65 min, 33 %-42 % B). The column temperature maintained at 30 ℃, the injection volume was 20 μL, the atomization temperature mode was LOW, the filtration constant (filter) was 3.6 and data collection rate was 10 Hz. The methodology was examined and the linearity of regression of different functions was compared. Sixteen batches of samples were prepared and their contents were determined. RESULTS The six compounds showed a better linearity (R2 > 0.9990) in their concentration ranges when using the linear function. The average recoveries were 99.18 %-101.30 %. Although the RSD value of puerarin and ginsenoside Rg1 was slightly out of 3 % during the average recovery investigation, all the other methodological investigations of the six components were within 3 %. The precision, stability and repeatability of the method were good. In sixteen batches of Bushen Huoxue prescription samples, the contents of six components were 0.3138 %-0.6042 % for catalpol, 0.8095 %-1.2917 % for puerarin, 0.7416 %-1.1189 % for salvianolic acid B, 0.0231 %-0.0418 % for ginsenoside Rg1, 0.0702 %-0.1724 % for ginsenoside Rb1, 0.0384 %-0.1196 % for ginsenoside Rd. CONCLUSION In this experiment, a method for the determination of six components in Bushen Huoxue prescription based on HPLC-CAD was established with high accuracy, good repeatability and simple operation, and it can provide references for the improvement of quality standard of the Bushen Huoxue prescription. It is reasonable and accessible for the CAD application in the determination of traditional Chinese medicine compound prescriptions.
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Affiliation(s)
- Mengjun Xie
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, No. 1166 Liutai Avenue, Wenjiang District, Chengdu, Sichuan, 611137, China.
| | - Yueting Yu
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, No. 1166 Liutai Avenue, Wenjiang District, Chengdu, Sichuan, 611137, China.
| | - Ziyu Zhu
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, No. 1166 Liutai Avenue, Wenjiang District, Chengdu, Sichuan, 611137, China.
| | - Liping Deng
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, No. 1166 Liutai Avenue, Wenjiang District, Chengdu, Sichuan, 611137, China.
| | - Bo Ren
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, No. 1166 Liutai Avenue, Wenjiang District, Chengdu, Sichuan, 611137, China.
| | - Mei Zhang
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, No. 1166 Liutai Avenue, Wenjiang District, Chengdu, Sichuan, 611137, China.
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Jiang P, Lu Y, Chen D. Qualitative and quantitative analysis of multiple components for quality control of Deng-Zhan-Sheng-Mai capsules by ultra high performance liquid chromatography tandem mass spectrometry method coupled with chemometrics. J Sep Sci 2016; 40:612-624. [DOI: 10.1002/jssc.201600744] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2016] [Revised: 10/10/2016] [Accepted: 11/09/2016] [Indexed: 11/11/2022]
Affiliation(s)
- Pin Jiang
- State Key Laboratory of Natural Medicines; China Pharmaceutical University; Nanjing P.R. China
- Department of Pharmacognosy, School of Pharmacy; Fudan University; Shanghai P.R. China
| | - Yan Lu
- Department of Pharmacognosy, School of Pharmacy; Fudan University; Shanghai P.R. China
| | - Daofeng Chen
- State Key Laboratory of Natural Medicines; China Pharmaceutical University; Nanjing P.R. China
- Department of Pharmacognosy, School of Pharmacy; Fudan University; Shanghai P.R. China
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Lee SJ, Ha N, Kim Y, Kim MG. Changes in the Ginsenoside Content During Fermentation Using an Appliance for the Preparation of Red Ginseng. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2016; 44:1595-1606. [DOI: 10.1142/s0192415x16500890] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
The total amount of ginsenoside in fermented red ginseng (FRG) is increased by microbial fermentation. The aim of this study was to evaluate whether fermentation time and temperature affect the ginsenoside content during fermentation using an appliance for the preparation of red ginseng. The FRG and fermented red ginseng extracts (FRG-e) were prepared using an appliance for the preparation of red ginseng. The temperature was recorded and time points for sampling were scheduled at pre-fermentation (0[Formula: see text]h) and 18, 36, 48, 60 and 72[Formula: see text]h after the addition of the microbial strains. Samples of FRG and FRG-e were collected to identify changes in the ginsenoside contents at each time point during the fermentation process. The ginsenoside content was analyzed using high performance liquid chromatography (HPLC). The levels of ginsenoside Rh1, Rg3, and compound Y, which are known to have effective pharmacological properties, increased more than three-fold in the final products of FRG relative to samples prior to fermentation. Although the ginsenoside constituents of FRG-e decreased or increased and then decreased during fermentation, the total amount of ginsenoside in FRG-e was even higher than those in FRG; the total amounts of ginsenoside in FRG-e and FRG were 8282.8 and 738.0[Formula: see text]mg, respectively. This study examined the changes in composition of ginsenosides and suggests a method to manufacture high-content total ginsenosides according to the fermentation temperature and process time. Reducing the extraction time is expected to improve the decrease of ginsenosides in FRG-e as a function of the fermentation time.
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Affiliation(s)
- So Jin Lee
- Clinical Pharmacology Unit and Biomedical Research Institute, Chonbuk National University Hospital, Jeonju, Republic of Korea
| | - Na Ha
- Clinical Pharmacology Unit and Biomedical Research Institute, Chonbuk National University Hospital, Jeonju, Republic of Korea
| | - Yunjeong Kim
- Clinical Pharmacology Unit and Biomedical Research Institute, Chonbuk National University Hospital, Jeonju, Republic of Korea
| | - Min-Gul Kim
- Clinical Pharmacology Unit and Biomedical Research Institute, Chonbuk National University Hospital, Jeonju, Republic of Korea
- Department of Pharmacology, School of Medicine, Chonbuk National University, Jeonju, Republic of Korea
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Li J, Jia S, Yoon SJ, Lee SJ, Kwon SW, Lee J. Ion-pair dispersive liquid–liquid microextraction solidification of floating organic droplets method for the rapid and sensitive detection of phenolic acids in wine samples using liquid chromatography combined with a core–shell particle column. J Food Compost Anal 2016. [DOI: 10.1016/j.jfca.2015.09.016] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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Nguyen HT, Lee DK, Lee WJ, Lee G, Yoon SJ, Shin BK, Nguyen MD, Park JH, Lee J, Kwon SW. UPLC-QTOFMS based metabolomics followed by stepwise partial least square-discriminant analysis (PLS-DA) explore the possible relation between the variations in secondary metabolites and the phylogenetic divergences of the genus Panax. J Chromatogr B Analyt Technol Biomed Life Sci 2016; 1012-1013:61-8. [DOI: 10.1016/j.jchromb.2016.01.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2015] [Revised: 11/27/2015] [Accepted: 01/02/2016] [Indexed: 10/24/2022]
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Pitschmann A, Zehl M, Heiss E, Purevsuren S, Urban E, Dirsch VM, Glasl S. Quantitation of phenylpropanoids and iridoids in insulin-sensitising extracts of Leonurus sibiricus L. (Lamiaceae). PHYTOCHEMICAL ANALYSIS : PCA 2016; 27:23-31. [PMID: 26333151 DOI: 10.1002/pca.2583] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2014] [Revised: 07/01/2015] [Accepted: 07/03/2015] [Indexed: 06/05/2023]
Abstract
INTRODUCTION Leonurus sibiricus L. is regularly used in traditional Mongolian medicine including for the treatment of symptoms of diabetes mellitus. OBJECTIVES To provide a validated quantitation method for the quality control of Leonurus sibiricus and to prove in vitro insulin-sensitisation, thereby supporting the traditional use of Leonurus sibiricus. METHODOLOGY Pulverised Leonurus sibiricus material was either extracted with methanol or methanol:water (25:75, v/v). HPLC-CAD (charged aerosol detector) separations were performed on a Luna Phenyl-Hexyl column with water and acetonitrile (both modified with 0.1% formic acid) as mobile phase. Gradient elution was employed using theophylline as internal standard. Tentative peak identification was facilitated by HPLC-MS. Validation was carried out according to ICH (International Conference on Harmonisation) guidelines. Potential insulin-sensitisation of accordant extracts was assessed in glucose uptake experiments in C2C12 myocytes and protein tyrosine phosphatase 1B (PTP1B) enzyme assays. RESULTS Thirty-six compounds were tentatively identified based on their retention times, UV spectra, MS fragments and data from literature. They comprise phenolcarboxylic acids, flavonoids, iridoid glycosides, and phenylpropanoids, among which acetylharpagide, ajugoside, lavandulifolioside, and verbascoside were selected for quantitation. The methanol extract contained 0.42% combined iridoids, and 1.58% combined phenylpropanoids. Validation showed good accuracy, intermediate precision and robustness. The methanol extract of Leonurus sibiricus led to a 1.5 fold increase in insulin-stimulated cellular glucose uptake and inhibition of PTP1B by 40% at a concentration of 10 µg/mL. CONCLUSION HPLC-CAD analysis allowed sensitive quantitation of the selected marker compounds in Leonurus sibiricus, thereby providing a reliable tool for its quality control.
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Affiliation(s)
- Anna Pitschmann
- Department of Pharmacognosy, University of Vienna, Althanstraße 14, A-1090, Vienna, Austria
| | - Martin Zehl
- Department of Pharmacognosy, University of Vienna, Althanstraße 14, A-1090, Vienna, Austria
- Department of Pharmaceutical Chemistry, University of Vienna, Althanstraße 14, A-1090, Vienna, Austria
| | - Elke Heiss
- Department of Pharmacognosy, University of Vienna, Althanstraße 14, A-1090, Vienna, Austria
| | - Sodnomtseren Purevsuren
- School of Pharmacy and Biomedicine, Mongolian National University of Medical Science, Ulaanbaatar, PO 48 Box 111, Mongolia
| | - Ernst Urban
- Department of Pharmaceutical Chemistry, University of Vienna, Althanstraße 14, A-1090, Vienna, Austria
| | - Verena M Dirsch
- Department of Pharmacognosy, University of Vienna, Althanstraße 14, A-1090, Vienna, Austria
| | - Sabine Glasl
- Department of Pharmacognosy, University of Vienna, Althanstraße 14, A-1090, Vienna, Austria
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Ouyang LF, Wang ZL, Dai JG, Chen L, Zhao YN. Determination of total ginsenosides in ginseng extracts using charged aerosol detection with post-column compensation of the gradient. Chin J Nat Med 2015; 12:857-68. [PMID: 25480518 DOI: 10.1016/s1875-5364(14)60129-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2013] [Indexed: 12/22/2022]
Abstract
AIM Variation in structure-related components in plant products prompted the trend to establish methods, using multiple or total analog analysis, for their effective quality control. However, the general use of routine quality control is restricted by the limited availability of reference substances. Using an easily available single marker as a reference standard to determine multiple or total analogs should be a practical option. METHOD In this study, the Ultra-HPLC method was used for the baseline separation of the main components in ginseng extracts. Using a plant chemical component database, ginsenosides in ginseng extracts were identified by Ultra-HPLC-MS analysis. The charged aerosol detection (CAD) system with post-column compensation of the gradient generates a similar response for identical amounts of different analytes, and thus, the content of each ginsenoside in ginseng extracts was determined by comparing the analyte peak area with the reference standard (determination of total analogs by single marker, DTSM). The total ginsenoside content was determined by the summation of reference standard and other ginsenoside components. RESULTS The results showed that DTSM approaches were available for the determination of total ginsenosides in a high purity ginseng extract because of the removal of impurities. In contrast, DTSM approaches might be suitable for determination of multiple ginsenosides without interference from impurities in the crude ginseng extract. CONCLUSION Future practical studies similar to the present study should be conducted to verify that DTSM approaches based on CAD with post-column inverse gradient for uniform response are ideal for the quality control of plant products.
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Affiliation(s)
- Liu-Feng Ouyang
- Research Center of Basic Medical College, Nanjing University of Traditional Chinese Medicine, Nanjing 210046, China
| | - Zhong-Li Wang
- Research Center of Basic Medical College, Nanjing University of Traditional Chinese Medicine, Nanjing 210046, China
| | - Jian-Guo Dai
- Research Center of Basic Medical College, Nanjing University of Traditional Chinese Medicine, Nanjing 210046, China
| | - Lin Chen
- Research Center of Basic Medical College, Nanjing University of Traditional Chinese Medicine, Nanjing 210046, China
| | - Yu-Nan Zhao
- Research Center of Basic Medical College, Nanjing University of Traditional Chinese Medicine, Nanjing 210046, China.
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Li ZY, Welbeck E, Wang RF, Liu Q, Yang YB, Chou GX, Bi KS, Wang ZT. A universal quantitative ¹H nuclear magnetic resonance (qNMR) method for assessing the purity of dammarane-type ginsenosides. PHYTOCHEMICAL ANALYSIS : PCA 2015; 26:8-14. [PMID: 24912845 DOI: 10.1002/pca.2527] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2013] [Revised: 04/16/2014] [Accepted: 04/28/2014] [Indexed: 06/03/2023]
Abstract
INTRODUCTION Quantitative (1)H-NMR (qNMR) is a well-established method for quantitative analysis and purity tests. Applications have been reported in many areas, such as natural products, foods and beverages, metabolites, pharmaceuticals and agriculture. The characteristics of quantitative estimation without relying on special target reference substances make qNMR especially suitable for purity tests of chemical compounds and natural products. Ginsenosides are a special group of natural products drawing broad attention, and are considered to be the main bioactive principles behind the claims of ginsengs efficacy. The purity of ginsenosides is usually determined by conventional chromatographic methods, although these may not be ideal due to the response of detectors to discriminate between analytes and impurities and the long run times involved. OBJECTIVE To establish a qNMR method for purity tests of six dammarane-type ginsenoside standards. METHODS Several experimental parameters were optimised for the quantification, including relaxation delay (D1), the transmitter frequency offset (O1P) and power level for pre-saturation (PL9). The method was validated and the purity of the six ginsenoside standards was tested. Also, the results of the qNMR method were further validated by comparison with those of high performance liquid chromatography. CONCLUSION The qNMR method was rapid, specific and accurate, thus providing a practical and reliable protocol for the purity analysis of ginsenoside standards.
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Affiliation(s)
- Ze Yun Li
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, 110016, China
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Granica S, Piwowarski JP, Kiss AK. Determination of C-glucosidic ellagitannins in Lythri salicariaeherba by ultra-high performance liquid chromatography coupled with charged aerosol detector: method development and validation. PHYTOCHEMICAL ANALYSIS : PCA 2014; 25:201-6. [PMID: 24375649 DOI: 10.1002/pca.2492] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2013] [Revised: 11/02/2013] [Accepted: 11/06/2013] [Indexed: 05/07/2023]
Abstract
INTRODUCTION Lythri salicariaeherba is a pharmacopoeial plant material used by patients in the form of infusions in the treatment of acute diarrhoea. According to its pharmacopoeial monograph it is standardised for total tannin content, which should be not less than 5.0% using pyrogallol as a standard. Previous studies have shown that aqueous extracts from Lythri herba contain mainly ellagitannins among which vescalagin, castalagin and salicarinins A and B are dominating constituents. OBJECTIVE To develop and validate an efficient UHPLC coupled with a charged aerosol detector (CAD) method for quantification of four major ellagitannins in Lythri salicariaeherba and in one commercial preparation. METHODS Extraction conditions of ellagitannins from plant material were optimised. The relative response factors for vescalagin, castalagin and salicarinins A and B using gallic acid as an external standard were determined for the CAD detector. Then, a UHPLC method for quantification of ellagitannins was developed and validated. RESULTS Four major ellagitannins were quantified in four samples of Lythri herba and in one commercial preparation. The sum of ellagitannins for each sample was determined, which varied from 30.66 to 48.80 mg/g of raw material and 16.57 mg per capsule for the preparation investigated. CONCLUSION The first validated UHPLC/CAD UHPLC-CAD method for quantification of four major ellagitannins was developed. The universality of the CAD response was evaluated and it is shown that although all compounds analysed have similar structures their CAD response differs significantly.
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Affiliation(s)
- Sebastian Granica
- Department of Pharmacognosy and Molecular Basis of Phytotherapy, Faculty of Pharmacy, Medical University of Warsaw, Poland
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Fox CB, Sivananthan SJ, Mikasa TJ, Lin S, Parker SC. Charged aerosol detection to characterize components of dispersed-phase formulations. Adv Colloid Interface Sci 2013; 199-200:59-65. [PMID: 23855968 DOI: 10.1016/j.cis.2013.06.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2012] [Revised: 05/10/2013] [Accepted: 06/10/2013] [Indexed: 01/22/2023]
Abstract
Colloidal formulations based on biocompatible phospholipids, emulsifiers, and oils are employed in a wide range of applications including medicine, food, and cosmetics. However, characterization of these dispersed-phase components may be difficult to analyze by traditional HPLC with UV, visible, or fluorescence detection modalities due to lack of chromophores or fluorophores. Charged aerosol detection (CAD) is increasingly used for analysis of dispersed-phase components due to its broad applicability and high sensitivity for non-chromophore containing components found in many colloidal systems, such as lipid-based molecules. In this review, we summarize the recent applications of CAD reported in the literature as well as our own laboratory for the analysis of widely used components of dispersed-phase systems. In particular, we discuss the advantages and disadvantages of CAD compared to other HPLC detection methods, as well as the various sample preparation methods suitable for colloidal formulations prior to HPLC-CAD analysis.
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