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Magnibou LM, Wouamba SCN, Yaya AJG, Mbougnia JF, Njateng GSS, Fotso GW, Henoumont C, Laurent S, Emmanuel T. Chemical profiling by UHPLC-Q-TOF-HRESI-MS/MS and antibacterial properties of Entada abyssinica (Fabaceae) constituents. Nat Prod Res 2023:1-11. [PMID: 37977828 DOI: 10.1080/14786419.2023.2280171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Accepted: 10/30/2023] [Indexed: 11/19/2023]
Abstract
A rapid untargeted UHPLC-Q-TOF-ESI-MS/MS-Based metabolomic profiling of the medicinal plant Entada abyssinica was performed. A total of 18 metabolites were detected, of which 10 could not be identified. Based on this result, an extensive chemical investigation of the CH2Cl2-MeOH (1:1) extract of this plant was carried out, leading to the isolation of a new ceramide, named entadamide (1), together with nine known compounds: monomethyl kolavate (2), 24-hydroxytormentic acid (3) chondrillasterol (4), 3-O-β-D glucopyranosylstigmasterol (5), 3-O-β-D glucopyranosylsitosterol (6), quercetin 3'-methylether (7), 2,3-dihydroxypropyl icosanoate (8), 2,3-dihydroxy-propyl 23-hydroxytricosanoate (9) and 2,3-dihydroxy-propyl 24-hydroxytetracosanoate (10). Their structures were elucidated by the analyses of their spectroscopic and spectrometric data (1D and 2D NMR, and HRESI-MS) in comparison with those reported in the literature. Furthermore, the crude extract and some isolated compounds were tested against non-ciprofloxacin resistant strains viz, Pseudomonas aeruginosa (ATCC 27853), Escherichia coli (ATCC 25922), Samonella thyphi (ATCC 19430) and Samonella enterica (NR4294). The tested samples demonstrated significant activity against all the tested bacteria (MIC values: 3.12-12.5 μg/mL).
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Affiliation(s)
- Larissa M Magnibou
- Department of Chemistry, Faculty of Science, University of Ngaoundéré, Ngaoundéré, Cameroon
| | - Steven C N Wouamba
- Laboratoire BONHEURS-EA 751, CY Cergy-Paris Université, Gennevilliers, France
- Department of Organic Chemistry, Faculty of Science, University of Yaoundé 1, Yaoundé, Cameroon
| | - Abel J G Yaya
- Department of Chemistry, Faculty of Science, University of Ngaoundéré, Ngaoundéré, Cameroon
| | | | - Guy S S Njateng
- Faculty of Science, University of Dschang, Dschang, Cameroon
| | - Ghislain W Fotso
- Department of Organic Chemistry, Faculty of Science, University of Yaoundé 1, Yaoundé, Cameroon
| | - Celine Henoumont
- Department of General, Organic and Biomedical Chemistry, University of Mons, Mons, Belgium
| | - Sophie Laurent
- Department of General, Organic and Biomedical Chemistry, University of Mons, Mons, Belgium
| | - Talla Emmanuel
- Department of Chemistry, Faculty of Science, University of Ngaoundéré, Ngaoundéré, Cameroon
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Magnibou LM, Leutcha PB, Tchegnitegni BT, Wouamba SCN, Magne CYFF, Yaya AJ, Kopa T, Tagatsing MF, Tombozara N, Meli AL, Henoumont C, Laurent S, Talla E. A new phenanthrene derivative from Entada abyssinica with antimicrobial and antioxidant properties. Zeitschrift für Naturforschung B 2021. [DOI: 10.1515/znb-2021-0076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Entada abyssinica Steud. Ex A. Rich (Leguminosae) is a medicinal plant used traditionally for the treatment of infections. A phytochemical investigation of the methanol extract of E. abyssinica root bark led to the isolation of a new phenanthrene derivative named phenentada (1), together with seven known compounds (8 S, 13 E)-kolavic acid 15-methyl ester (2) and 8 S-kolavic acid 15-methyl ester (3) obtained as mixture, 8 S-kolavic acid 15-methyl ester (3), 8 S-kolavic acid 18-methyl ester (4), 13,14,15,16-tetranorclerod-3-ene-12,18-dioic acid (5), 1′,26′-bis-[(S)-2,3-dihydroxypropyl] hexacosanedioate (6), campesterol (7) and 3-O-β
-d-glucopyranosylstigmasterol (8). Their structures were determined by NMR spectroscopy (1D and 2D), mass spectrometry (HRESIMS) and by comparison with previously reported data. The crude extract and some isolated compounds were evaluated for their in vitro antimicrobial activities by the microdilution method while, the antioxidant activity was evaluated by the DPPH methods. Regarding the antimicrobial activity, the crude extract showed significant inhibitory activities against bacteria strains (MIC 7.81–31.3 μg mL−1) and yeasts (MIC 15.6–31.3 μg mL−1) whereas all compounds tested exhibited significant activity against Staphylococcus epidermidis. Moreover, compounds 4, 5 and 6 and the mixture 2/3 showed significant antimicrobial activity on Candida parapsilosis strain (MIC = 3.12 μg mL−1), as well as selected antifungal property against candida pathogenic fungi strains. On the other hand, compounds (1) demonstrated the best bioactivities against Candida albicans and Salmonella enterica with MIC = 3.12 μg mL−1 while the mixture 2/3 appeared to have the highest inhibition on gram (+) bacteria strain S. epidermidis with MIC of 0.78 μg mL−1 and compound 5 (MIC = 1.56 μg mL−1) against the gram (−) bacteria strain. Furthermore, the SC50 values measured by the antioxidant test for all samples varied between 47.21 and 52.44 μg mL−1 for DPPH. These results support the traditional uses of E. abyssinica in the management of several diseases including the claim in the skin disease treatment. Additionally, here is reported the first time isolation of a phenanthrene derivative in the Fabaceae family to the best of our knowledge.
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Affiliation(s)
- Larissa M. Magnibou
- Department of Chemistry, Faculty of Science, University of Ngaoundéré, P. O. Box 454 , Ngaoundéré , Cameroon
| | - Peron B. Leutcha
- Department of Chemistry, Faculty of Science , University of Maroua , P. O. Box 55 , Maroua , Cameroon
| | - Billy T. Tchegnitegni
- Department of Chemistry, Faculty of Science , University of Dschang , P. O. Box 67 , Dschang , Cameroon
| | - Steven C. N. Wouamba
- Department of Organic Chemistry, Faculty of Science , University of Yaoundé I , P. O. Box 812, 4124 , Yaoundé , Cameroon
| | - Cyrille Y. F. F. Magne
- Department of Chemistry, Faculty of Science, University of Ngaoundéré, P. O. Box 454 , Ngaoundéré , Cameroon
| | - Abel J. G. Yaya
- Department of Chemistry, Faculty of Science, University of Ngaoundéré, P. O. Box 454 , Ngaoundéré , Cameroon
| | - Theodora Kopa
- Institute of Medical Research and Medicinal Plants Studies (IMPM), Ministry of Scientific Research and Innovation , P. O. Box 1218 , Yaoundé , Cameroon
| | - Maurice F. Tagatsing
- Department of Organic Chemistry, Faculty of Science , University of Yaoundé I , P. O. Box 812, 4124 , Yaoundé , Cameroon
| | - Nantenaina Tombozara
- Institut Malgache de Recherches Appliquées , P. O. Box 3833, Avarabohitra Itaosy , Antananarivo , Madagascar
| | - Alain L. Meli
- Department of Chemistry, Faculty of Science , University of Maroua , P. O. Box 55 , Maroua , Cameroon
| | - Celine Henoumont
- Department of General, Organic and Biomedical Chemistry, Faculty of Medicine and Pharmacy , University of Mons , Belgium, Avenue Maistriau, 19 B-7000 , Mons , Belgium
| | - Sophie Laurent
- Department of General, Organic and Biomedical Chemistry, Faculty of Medicine and Pharmacy , University of Mons , Belgium, Avenue Maistriau, 19 B-7000 , Mons , Belgium
| | - Emmanuel Talla
- Department of Chemistry, Faculty of Science, University of Ngaoundéré, P. O. Box 454 , Ngaoundéré , Cameroon
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