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Research and review articles are invited for publication in September 2026 - Vol. 36, Issue 3 

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Phytochemical and In vitro Antimicrobial Activities of the Fruit Extracts of Xylopia aethiopica [Dun] A. Rich. (Annonaceae)

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  • Phytochemical and In vitro Antimicrobial Activities of the Fruit Extracts of Xylopia aethiopica [Dun] A. Rich. (Annonaceae)

Nkechi Obiofu Ezenobi 1, Chioma Nnennaya Chinaka 2, * and Chisom Anthonia Osigwe 1

1 Department of Pharmaceutical Microbiology and Biotechnology, University of Port-Harcourt.
2 Department of Medicinal and Pharmaceutical Chemistry, University of Port-Harcourt, Port-Harcourt, Nigeria.
 
Research Article
GSC Biological and Pharmaceutical Sciences, 2023, 22(03), 082–087.
Article DOI: 10.30574/gscbps.2023.22.3.0172
DOI url: https://doi.org/10.30574/gscbps.2023.22.3.0172
Received on 29 April 2022; revised on 05 March 2023; accepted on 08 March 2023
Aim: The fruit of the plant Xylopia aethiopica has been used in ethno-medicine in southern Nigeria for treating dysentery, cough and bacterial infections. This present study investigates the phytochemical and antimicrobial activities of the different extracts of X aethiopica fruit.
Method: The powdered dried fruits of Xylopia aethiopica was extracted with 95% ethanol and further fractionated into n-hexane and ethyl acetate fractions. The clinically isolated strains of Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa and Candida albicans were obtained from their stock cultures and characterized using biochemical tests and then standardized with 0.5 McFarland. The antimicrobial activities of the different extracts were investigated using agar diffusion method.
Results: The n-hexane extract was most effective against Pseudomonas aeruginosa, Staphylococcus aureus and Candida albicans with a minimum inhibitory concentration (MIC) of 6.25, 50 and 50 mg/ml respectively while the ethyl acetate extract was active against Pseudomonas aeruginosa and Candida albicans with MIC of 6.25 and 12.5 mg/ml respectively. The crude ethanol extract showed most activity against Pseudomonas aeruginosa with MIC of 3.125 mg/ml. The phytochemical studies on the crude extract revealed the presence of triterpenoids /steroids, carbohydrates, cardenolides and saponins.
Conclusion: The antimicrobial activities of the plant justify its usage in traditional healthcare practices especially in infections involving Pseudomonas aeruginosa which showed the highest sensitivity. 
Xylopia aethiopica; Antimicrobial study; MIC; Phytochemical
https://gscbps.gsconlinepress.com/sites/default/files/fulltext_pdf/GSCBPS-2022-…

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Nkechi Obiofu Ezenobi, Chioma Nnennaya Chinaka and Chisom Anthonia Osigwe. Phytochemical and In vitro Antimicrobial Activities of the Fruit Extracts of Xylopia aethiopica [Dun] A. Rich. (Annonaceae). GSC Biological and Pharmaceutical Sciences, 2023, 22(3), 082-087. Article DOI: https://doi.org/10.30574/gscbps.2023.22.3.0172


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