Original Articles
Vol. 98 No. 1 (2025)
Chemical compounds, FTIR and in vitro antibacterial analyses of the acetone stem bark extract of Ziziphus mucronata subsp. mucronata (Buffalo Thorn) against potential nosocomial bacterial pathogens
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All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.
Received: 13 February 2022
Accepted: 8 March 2023
Accepted: 8 March 2023
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Ziziphus mucronata is a commonly used plant in South Africa for treatment of infections and diseases. The study aimed at determining the antimicrobial activities and the pharmacologically active chemical compounds present in the acetone extract of this plant. The pharmacologically active chemical compounds in this extract were determined using gas chromatography-mass spectrometry (GC-MS). Their antibacterial activity was assayed in vitro by agar well diffusion and macrobroth dilution techniques against different bacterial isolates. Fourier transform infrared (FTIR) spectroscopy was used to determine the functional groups of the chemical compounds in the plant extract. The GC-MS result showed 52 chemical compounds with 29 compounds having reported pharmacological activities (while 23 compounds have not been reported), with1,1,6-trimethyl-3-methylene-2-(3,6,9,13- tetramethyl-6-ethenye-10,14-dimethylene-pentadec-4-enyl)cyclohexane, 2,6-β-17-β-Trihydroxy-6-α-pentyl-2,3-seco-5-α- androstan-3-oic acid-γ-lactone, 2,3,4,5-tetrahexyl-dimethyl ester Hexanedioic acid, i-Propyl 9-tetradecenoate, (3-β-22E)-Ergosta- 7,22-dien-3-ol, Ergosta-4,22-dien-3-one, 3,4-dimethoxymethylmonoacetalBenzaldehyde, 6-(acetyloxy)-4-methyl-4- Hexenoic acid and O-α-D-glucopyranosyl-α-D-Glucopyranoside being compounds amounting for ≥1%. The FTIR spectrograph indicated that the identified compounds are amines, amides, alkanes, aldehydes, diketones, nitrosamine, esters, alkyl amine, secondary and primary alcohols and sulfoxide groups which are present in the plant extract. The Minimum Inhibitory Concentrations (MICs) ranged between 0.31 mg/mL and 5.5 mg/mL against the test bacterial isolates. This study shows the biological activities of Ziziphus mucronata extract depend greatly on the varied concentrations of the chemical compounds identified in the acetone extract and indicated the potential importance of this plant as a significant source of novel compounds for the treatment of diseases over synthetic antibiotics.
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How to Cite
Chemical compounds, FTIR and in vitro antibacterial analyses of the acetone stem bark extract of Ziziphus mucronata subsp. mucronata (Buffalo Thorn) against potential nosocomial bacterial pathogens. (2025). Journal of Biological Research - Bollettino Della Società Italiana Di Biologia Sperimentale, 98(1). https://doi.org/10.4081/jbr.2025.10408
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