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Antibacterial and Antibiotic Modifying Potential of Crude Extracts, Fractions, and Compounds from Acacia polyacantha Willd. against MDR Gram-Negative Bacteria
Joint Authors
Kuete, Victor
Penlap, Veronique
Mambe, Flora T.
Na-Iya, Jean
Fotso, Ghislain W.
Ashu, Fred
Ngameni, Bathélémy
Ngadjui, Bonaventure T.
Source
Evidence-Based Complementary and Alternative Medicine
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-03-07
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Abstract EN
The present study aimed to assess the in vitro antibacterial and antibiotic modifying activities of methanol extracts prepared from the leaf (APL) and bark (APB) of Acacia polyacantha, fractions (APLa-d) and compounds isolated from APL against a panel of multidrug resistant (MDR) Gram-negative bacteria.
Leaf extract was subjected to column chromatography for compounds isolation; antibacterial assays were performed on samples alone and with an efflux pump inhibitor (EPI), respectively, and several antibiotics on the tested bacteria.
The phytochemical investigation of APL led to the isolation of stigmasterol (1), β-amyrin (2), 3-O-β-D-glucopyranosylstigmasterol (3), 3-O-methyl-D-chiro-inositol (4), epicatechin (5), quercetin-3-O-glucoside (6), 3-O-[β-D-xylopyranosyl-(1→4)-β-D-galactopyranosyl]-oleanolic acid (7), and 3-O-[β-galactopyranosyl-(1→4)-β-D-galactopyranosyl]-oleanolic acid (8).
APL and APB had minimal inhibitory concentration (MIC) values ≤ 1024 μg/mL on 73.3% and 46.7% of the tested bacteria, respectively.
APLb and APLd were effective against 88.9% of tested bacterial species with compound 8 showing the highest activity inhibiting 88.9% of tested bacteria.
The EPI, phenylalanine-arginine-β-naphthylamide (PAßN), strongly improved the activity of APL, APLb, APLd, and compound 8 on all tested bacteria.
Synergistic effects were obtained when APL and compounds 7 and 8 were combined with erythromycin (ERY), gentamycin (GEN), ciprofloxacin (CIP), and norfloxacin (NOR).
The present study demonstrates the antibacterial potential of Acacia polyacantha and its constituents to combat bacterial infections alone or in combination with EPI.
American Psychological Association (APA)
Mambe, Flora T.& Na-Iya, Jean& Fotso, Ghislain W.& Ashu, Fred& Ngameni, Bathélémy& Ngadjui, Bonaventure T.…[et al.]. 2019. Antibacterial and Antibiotic Modifying Potential of Crude Extracts, Fractions, and Compounds from Acacia polyacantha Willd. against MDR Gram-Negative Bacteria. Evidence-Based Complementary and Alternative Medicine،Vol. 2019, no. 2019, pp.1-13.
https://search.emarefa.net/detail/BIM-1150916
Modern Language Association (MLA)
Mambe, Flora T.…[et al.]. Antibacterial and Antibiotic Modifying Potential of Crude Extracts, Fractions, and Compounds from Acacia polyacantha Willd. against MDR Gram-Negative Bacteria. Evidence-Based Complementary and Alternative Medicine No. 2019 (2019), pp.1-13.
https://search.emarefa.net/detail/BIM-1150916
American Medical Association (AMA)
Mambe, Flora T.& Na-Iya, Jean& Fotso, Ghislain W.& Ashu, Fred& Ngameni, Bathélémy& Ngadjui, Bonaventure T.…[et al.]. Antibacterial and Antibiotic Modifying Potential of Crude Extracts, Fractions, and Compounds from Acacia polyacantha Willd. against MDR Gram-Negative Bacteria. Evidence-Based Complementary and Alternative Medicine. 2019. Vol. 2019, no. 2019, pp.1-13.
https://search.emarefa.net/detail/BIM-1150916
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1150916