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Journal of Applied Sciences and Environmental Management
World Bank assisted National Agricultural Research Project (NARP) - University of Port Harcourt
ISSN: 1119-8362
Vol. 25, No. 1, 2021, pp. 113-117
Bioline Code: ja21016
Full paper language: English
Document type: Research Article
Document available free of charge

Journal of Applied Sciences and Environmental Management, Vol. 25, No. 1, 2021, pp. 113-117

 en Investigation of Bulb Extracts of Crinum jagus check for this species in other resources for Antibacterial and Antifungal Activities
ALAWODE, TT; LAJIDE, L; OWOLABI, BJ & OLALEYE, M.T

Abstract

This study investigates the bulb extracts of Crinum jagus for antimicrobial activities. The bulb samples were dried, ground and subjected to successive extraction using hexane, ethylacetate and methanol. The extracts were screened for activity against Staphylococcus aureus check for this species in other resources , Escherichia coli check for this species in other resources , Bacillus subtilis check for this species in other resources , Pseudomonas aeruginosa check for this species in other resources , Salmonella typhi check for this species in other resources , Klebisidlae pneumonae, Candida albicans check for this species in other resources , Aspergillus niger check for this species in other resources , Penicillium notatum check for this species in other resources and Rhizopus stolonifer check for this species in other resources at concentrations between 6.25 and 200 mg/ml. Antimicrobial assays werecarried out using agar diffusion method. The Minimum Inhibitory Concentration (MIC) of the extracts was determined. The percentage yields obtained for the hexane, ethylacetate and methanol extracts of the bulbs are 0.28 %, 0.44% and 24.68 % respectively. Results showed that the methanolic extract had better antibacterial and antifungal activities than the other extracts. The methanol extract showed the highest antibacterial activity against S. aureus with a zone of inhibition of 28 mm at 200 mg/ml. Also, the methanol extract showed the highest antifungal activities against C. albicans, A. niger and P. notatum with a zone of inhibition of 20 mm at 200 mg/ml. The hexane and ethylacetate extracts had no activity against the microorganisms at 6.25 mg/ml.The methanol extract had the lowest Minimum Inhibitory Concentration (MIC) of 2.50 mg/ml against S. aureus, E. coli, B. subtilis, P. aeruginosa and S. typhi. The methanol extract could be a source of potent antimicrobial compounds.

Keywords
Antibacterial; Antifungal; Crinum jagus; Agar diffusion; MIC

 
© Copyright 2021 - Alawode et al.

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