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Chua RW, Song KP, Ting ASY. Comparative analysis of antimicrobial compounds from endophytic Buergenerula spartinae from orchid. Antonie Van Leeuwenhoek 2023; 116:1057-1072. [PMID: 37597137 DOI: 10.1007/s10482-023-01870-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Accepted: 08/08/2023] [Indexed: 08/21/2023]
Abstract
A rare fungal endophyte, identified as Buergenerula spartinae (C28), was isolated from the roots of Cymbidium orchids and was characterised and evaluated for its antimicrobial activities. Bio-guided fractionation revealed 4 fractions from B. spartinae (C28) having antibacterial activities against at least one bacterial pathogen tested (Bacillus cereus and Staphylococcus aureus). However, inhibitory activities were absent against pathogenic fungi (Ganoderma boninense, Pythium ultimum and Fusarium solani). Fraction 2 and fraction 4 of B. spartinae (C28) exhibited potent antibacterial activities against S. aureus (MIC: 0.078 mg/mL) and B. cereus (MIC: 0.313 mg/mL), respectively. LCMS analysis revealed the presence of antibacterial agents and antibiotics in fraction 2 (benoxinate, pyropheophorbide A, (-)-ormosanine and N-undecylbenzenesulfonic acid) and fraction 4 (kaempferol 3-p-coumarate, 6-methoxy naphthalene acetic acid, levofuraltadone, hinokitiol glucoside, 3-α(S)-strictosidine, pyropheophorbide A, 5'-hydroxystreptomycin, kanzonol N and 3-butylidene-7-hydroxyphthalide), which may be responsible for the antibacterial activities observed. Most of the bioactive compounds profiled from the antibacterial fractions were discovered for the first time from endophytic isolates (i.e. from B. spartinae (C28)). Buergenerula spartinae (C28) from Cymbidium sp. is therefore, an untapped resource of bioactive compounds for potential applications in healthcare and commercial industries.
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Affiliation(s)
- Ru Wei Chua
- School of Science, Monash University Malaysia, Jalan Lagoon Selatan, 47500, Bandar Sunway, Selangor Darul Ehsan, Malaysia
| | - Keang Peng Song
- School of Science, Monash University Malaysia, Jalan Lagoon Selatan, 47500, Bandar Sunway, Selangor Darul Ehsan, Malaysia
| | - Adeline Su Yien Ting
- School of Science, Monash University Malaysia, Jalan Lagoon Selatan, 47500, Bandar Sunway, Selangor Darul Ehsan, Malaysia.
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Palakurthi AK, Dongala T, Yadlapalli SSR. Estimation of ramipril and telmisartan in human plasma by LC–MS/MS: Application in pharmacokinetic study. SEPARATION SCIENCE PLUS 2020. [DOI: 10.1002/sscp.201900092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
| | - Thirupathi Dongala
- Aurex Laboratories LLC10 Lake DriveEast Windsor New Jersey USA
- Department of ChemistryGITAM University Hyderabad India
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Patel B, Jangid AG, Suhagia BN, Desai N. Challenges in Simultaneous Determination of Hydrochlorothiazide and Ramipril in Human Plasma: Application to a Bioequivalence Study. J Chromatogr Sci 2018; 56:867-878. [DOI: 10.1093/chromsci/bmy055] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Indexed: 01/17/2023]
Affiliation(s)
- Bhargav Patel
- Department of Chemistry, St. Xavier’s College, Navrangpura, Ahmedabad, India
- Accutest Research Lab, Satellite, Ahmedabad, India
| | | | - B N Suhagia
- Faculty of Pharmacy, Dharamsinh Desai University, Nadiad, Gujarat, India
| | - Nirmal Desai
- Department of Chemistry, St. Xavier’s College, Navrangpura, Ahmedabad, India
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Saha A, Vats P, Gurule SJ, Khuroo A. Sensitive LC-MS/MS Method for the Determination of Ramipril in Human Plasma: Application to a Bioequivalence Study in Indian Volunteers. J Pharm Innov 2017. [DOI: 10.1007/s12247-017-9272-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Elsebaei F, Zhu Y. Enhanced elution of angiotensin converting enzyme inhibitors in ion chromatography: Application to their simultaneous quantitation in formulations and human plasma. Microchem J 2016. [DOI: 10.1016/j.microc.2015.08.015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Kollipara S, Bende G, Bansal Y, Saha R. Stability-indicating Reversed-phase Liquid Chromatographic Method for Simultaneous Determination of Losartan Potassium and Ramipril in Tablets. Indian J Pharm Sci 2013; 74:201-10. [PMID: 23440900 PMCID: PMC3574529 DOI: 10.4103/0250-474x.106061] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2011] [Revised: 04/17/2012] [Accepted: 04/28/2012] [Indexed: 11/04/2022] Open
Abstract
A stability-indicating reversed-phase liquid chromatographic method has been developed and validated for simultaneous determination of losartan potassium and ramipril. Separations were achieved using a C(18) column with mobile phase consisting of acetonitrile and (0.2% v/v, pH 2.5) aqueous trifluoroacetic acid (45:55, v/v) in isocratic mode at 1 ml/min flow rate. Column effluent was monitored at 210 nm using a UV detector. The method was validated for selectivity, linearity, accuracy, precision, sensitivity and robustness. Novel microwave-assisted forced degradation technique was employed for evaluation of selectivity. The method demonstrated excellent linearity for losartan potassium and ramipril with regression coefficients of 0.9999 and 0.9998, respectively. The linearity range was found to be 62.5-5000 ng/ml and 125-10,000 ng/ml with the mean percentage recoveries of 100.36% (±2.27) and 100.16% (±3.33) for losartan potassium and ramipril, respectively. In a robustness study, a full factorial design revealed that the analytical response remains unaffected by small variations in the critical chromatographic factors. The method was found to be sensitive with quantification limits of 44.30 and 79.93 ng/ml for losartan potassium and ramipril. The method was successfully employed for the determination of losartan potassium and ramipril in commercially available and in-house prepared tablets.
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Affiliation(s)
- S Kollipara
- Formulation Development and Pharmacokinetics Laboratory, Pharmacy Group, Birla Institute of Technology and Science, Pilani-333 031, India
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Elsebaei F, Zhu Y. Fast gradient high performance liquid chromatography method with UV detection for simultaneous determination of seven angiotensin converting enzyme inhibitors together with hydrochlorothiazide in pharmaceutical dosage forms and spiked human plasma and urine. Talanta 2011; 85:123-9. [DOI: 10.1016/j.talanta.2011.03.037] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2010] [Revised: 03/09/2011] [Accepted: 03/17/2011] [Indexed: 11/16/2022]
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Impact of methylation of acyl glucuronide metabolites on incurred sample reanalysis evaluation: ramiprilat case study. Bioanalysis 2011; 3:951-65. [DOI: 10.4155/bio.11.59] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Background: Reanalysis of incurred samples showed that the bioanalytical method for the quantification of ramipril and ramiprilat was generating irreproducible results for ramiprilat. Results: An additional peak interfering with ramiprilat was observed in the incurred samples but not in the calibrant and quality control samples. A similar interference was detected for ramipril, but it was chromatographically separated. Interferences were produced during sample preparation, which involves strong cation exchanger cartridges. The interfering products corresponded to the methylation of ramipril and ramiprilat glucuronide. Conclusion: Following this discovery, a reproducible method was developed and successfully validated for ramipril and ramiprilat. Additional stability tests were performed in the presence of glucuronide and diketopiperazine metabolites of ramipril and ramiprilat to demonstrate the method specificity.
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Orlandini S, Gotti R, Giannini I, Pasquini B, Furlanetto S. Development of a capillary electrophoresis method for the assay of ramipril and its impurities: an issue of cis-trans isomerization. J Chromatogr A 2011; 1218:2611-7. [PMID: 21429497 DOI: 10.1016/j.chroma.2011.02.062] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2011] [Revised: 02/22/2011] [Accepted: 02/23/2011] [Indexed: 10/18/2022]
Abstract
The development of a rapid and selective capillary electrophoresis method for the quantitation of ramipril and its eight main impurities in pharmaceutical dosage form is described. Ramipril and three of its impurities contain a proline-similar moiety which causes in solution the presence of interconverting cis-trans isomers with respect to the amide bond. The interplay between electrophoretic migration and isomerization may yield the presence of an undesired interconversion zone between the two isomer peaks in the electropherogram, depending on the experimental conditions. Different capillary electrophoresis operative modes and pseudostationary phases were evaluated, both in normal and reverse polarity, in order to find the essential analytical parameters which could make it possible to overcome this issue and thus accurately quantify the analytes. The best results were obtained by using microemulsion electrokinetic chromatography in reverse polarity, where all the compounds which undergo cis-trans interconversion migrate as a single narrow peak. Experimental design led to identification of the following optimised conditions: background electrolyte, microemulsion made by 88.95% of 90 mM phosphate pH 2.5, 1.05% of n-heptane and 10.00% of SDS/n-butanol in 1:2 ratio; voltage, -26 kV; temperature, 17°C. Applying these conditions, the baseline separation of the analytes was obtained in about 10 min. Validation of the method following ICH guidelines was carried out and the procedure was applied to a real sample of ramipril tablets.
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Affiliation(s)
- Serena Orlandini
- Department of Pharmaceutical Sciences, University of Florence, Florence, Italy.
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Pudage A, Kamat S. Development and validation of UPLC tandem mass spectrometry assay for separation of a phase II metabolite of ramipril using actual study samples and its application to a bioequivalence study. Biomed Chromatogr 2010; 25:664-73. [PMID: 20812207 DOI: 10.1002/bmc.1500] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2010] [Accepted: 07/01/2010] [Indexed: 11/09/2022]
Abstract
In this paper, we present a validated UPLC-MS/MS assay for determination of ramipril and ramiprilat from human plasma samples. The assay is capable of isolating phase II metabolites (acylglucornides) of ramipril from in vivo study samples which is otherwise not possible using conventional HPLC conditions. Both analytes were extracted from human plasma using solid-phase extraction technique. Chromatographic separation of analytes and their respective internal standards was carried out using an Acquity UPLC BEH C(18) (2.1 × 100 mm), 1.7 µm column followed by mass spectrometric detection using an Waters Quattro Premier XE. The method was validated over the range 0.35-70.0 ng/mL for ramipril and 1.0-40.0 ng/mL for ramiprilat.
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Affiliation(s)
- Ashutosh Pudage
- Department of Chemistry, Ramnarain Ruia College, Mumbai University, Matunga, India.
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Tan A, Jin W, Deng F, Hussain S, Musuku A, Massé R. Bioanalytical method development and validation using incurred samples--simultaneous quantitation of ramipril and ramiprilat in human EDTA plasma by LC-MS/MS. J Chromatogr B Analyt Technol Biomed Life Sci 2009; 877:3673-80. [PMID: 19782651 DOI: 10.1016/j.jchromb.2009.09.017] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2009] [Revised: 09/08/2009] [Accepted: 09/12/2009] [Indexed: 11/25/2022]
Abstract
A new method development and validation approach is proposed in order to develop a reliable method for the simultaneous quantitation of ramipril and ramiprilat in the presence of numerous labile metabolites. This new approach involves the usage of a synthesized labile acyl glucuronide of ramipril as well as individual and pooled incurred (study) samples in the development and validation process. Following the method validation and prior to its application to a large clinical study, a mini pilot study was performed to evaluate the performance of the method. When the samples from the mini pilot study were analyzed by two different scientists, 100% of the results from incurred sample reanalysis (ISR) matched within 8% of difference and the mean differences were 0.21% and 1.40% for ramipril and ramiprilat, respectively. The validated concentration range reported in this article is 0.2-80 ng/mL for both analytes. Various stabilities, such as bench-top, autosampler, freeze/thaw, and long-term, were also successfully evaluated. The key to the success were low sample processing temperature (4 degrees C), proper choice of sample extraction procedure, and adequate chromatographic conditions to obtain good peak shape without the need of derivatization and baseline separation between the analytes and their glucuronide metabolites.
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Yuan B, Wang X, Zhang F, Jia J, Tang F. Simultaneous Determination of Ramipril and Its Active Metabolite Ramiprilat in Human Plasma by LC–MS–MS. Chromatographia 2008. [DOI: 10.1365/s10337-008-0757-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Gowda KV, Mandal U, Senthamil Selvan P, Sam Solomon WD, Ghosh A, Sarkar AK, Agarwal S, Nageswar Rao T, Pal TK. Liquid chromatography tandem mass spectrometry method for simultaneous determination of metoprolol tartrate and ramipril in human plasma. J Chromatogr B Analyt Technol Biomed Life Sci 2007; 858:13-21. [PMID: 17825632 DOI: 10.1016/j.jchromb.2007.07.047] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2007] [Revised: 07/25/2007] [Accepted: 07/26/2007] [Indexed: 11/18/2022]
Abstract
A simple, rapid, sensitive and specific liquid chromatography-tandem mass spectrometry method was developed and validated for quantification of metoprolol tartrate (MT) and ramipril, in human plasma. Both the drugs were extracted by liquid-liquid extraction with diethyl ether-dichloromethane (70:30, v/v). The chromatographic separation was performed on a reversed-phase C8 column with a mobile phase of 10 mM ammonium formate-methanol (3:97, v/v). The protonated analyte was quantitated in positive ionization by multiple reaction monitoring with a mass spectrometer. The method was validated over the concentration range of 5-500 ng/ml for metoprolol and ramipril in human plasma. The precursor to product ion transitions of m/z 268.0-103.10 and m/z 417.20-117.20 were used to measure metoprolol and ramipril, respectively.
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Affiliation(s)
- K Veeran Gowda
- Bioequivalence Study Centre, Department of Pharmaceutical Technology, Jadavpur University, Kolkata, India.
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Rudzki PJ, Buś K, Ksycińska H, Kobylińska K. An overview of chromatographic methods coupled with mass spectrometric detection for determination of angiotensin-converting enzyme inhibitors in biological material. J Pharm Biomed Anal 2007; 44:356-67. [PMID: 17475434 DOI: 10.1016/j.jpba.2007.03.018] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2006] [Revised: 03/13/2007] [Accepted: 03/19/2007] [Indexed: 11/22/2022]
Abstract
Gas and liquid chromatography-mass spectrometry (GC-MS, LC-MS) methods for the determination of angiotensin-converting enzyme inhibitors (ACEIs) and their metabolites in biological material have been reviewed. Since 1980s those hyphenated techniques have been applied to quantitate ACE inhibitors and the dynamic increase in the number of relevant publications can be observed in recent years. Although most of the methods available in the literature were analyses of plasma or serum, assays of blood and urine were also included. Additionally, sample pretreatment methods, separation conditions and ionization modes were overviewed. Some information on chemical structures, cis-trans izomerization and stability of compounds in question was also included. Most of the reported methods were successfully applied to the pharmacokinetic studies in humans.
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Affiliation(s)
- Piotr J Rudzki
- Pharmaceutical Research Institute, Department of Pharmacology, 8 Rydygiera Street, 01-793 Warsaw, Poland
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Current literature in mass spectrometry. JOURNAL OF MASS SPECTROMETRY : JMS 2006; 41:1654-1665. [PMID: 17136768 DOI: 10.1002/jms.959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
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Rontogianni MA, Markopoulou CK, Koundourellis JE. HPLC and Chemometrically‐Assisted Spectrophotometric Estimation of Two Binary Mixtures for Combined Hypertension Therapy. J LIQ CHROMATOGR R T 2006. [DOI: 10.1080/10826070600923241] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Maria A. Rontogianni
- a Laboratory of Pharmaceutical Analysis, School of Pharmacy , Aristotelian University , Thessaloniki, Greece
| | - Catherine K. Markopoulou
- a Laboratory of Pharmaceutical Analysis, School of Pharmacy , Aristotelian University , Thessaloniki, Greece
| | - John E. Koundourellis
- a Laboratory of Pharmaceutical Analysis, School of Pharmacy , Aristotelian University , Thessaloniki, Greece
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