Plant derived medicines have made massive contributions to the humans over the years. Azadirachta indica is used in ethnomedicine to treat ailments such as; eczema, ringworm, sore throat, respiratory tract infection, and scabies. Seeds of A. indica were collected, shade dried, pulverized and extracted with petroleum ether using soxhlet and cold maceration. Physicochemical analysis of the seed oil was carried out as described by the Association of Official Analytical Chemists methods. The oil was fractionated using column chromatography, and then Infra-Red (IR) analysis was carried out using a spectrophotometer. The antifungal activities of the oil and Terbinafine standard compound were evaluated by determining the minimum inhibitory concentration (MIC) and minimum fungicidal concentration (MFC), using the Agar diffusion method. The petroleum ether oil recovered from the soxhlet method of extraction showed higher percentage of yield, whereas the oil obtained from cold maceration exhibited higher diameter of inhibition zones against several dermatophytes including; Trichophyton mentagrophytes, T. rubrum and Microsporum canis, ranging from 12.00- 16.33 mm. The MIC and MFC values of the oil ranged from 6.25 to > 50% v/v, and 12.5 to > 50% v/v, respectively. Moreover, the seed oil and its fractions recorded classes of several compounds which included; alkyl, alkanes, alkenes, aliphatic esters, ketone, carboxylic acid, amide, and alkyl halide. The seed oil had inhibitory potential against a dermatophyte which causes ring worm (T. corporis), thus confirmed the claims of using the A. indica extract for treatment of such disease. This study aimed to evaluate the antidermatophytic activities of the oil obtained from A. indica seeds using petroleum ether, and their fractions.

Author Name: Ungo-kore, H.Y; Ibrahim, Y.K.E.; Tytler, B.A.

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Keywords: Azadirachta indica, Seed oil, Antifungal potential, Fourier-transform infrared

ISSN: 2537-0286

EISSN:

EOI/DOI: 10.21608/nrmj.2019.66750

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