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Browsing by Author Ibisanmi, Tope Abraham

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Antifungal activity of chitinase produced by Streptomyces species isolated from grassland soils in Futa Area, Akure

Authors: Ekundayo, Fatuyi Olanipekun; Advisor: -; Participants: Folorunsho, Abisola Eniola; Ibisanmi, Tope Abraham; Olabanji, Olayinka Bukola (2022)

This study was carried out to investigate the antifungal activity of chitinase produced by Streptomyces species isolated from grassland soils against selected pathogenic fungi, namely: Magnaporthe oryzae, Fusarium graminearum, Rhizoctonia solani, Puccinia species and Botyrtis cinerea. Chitinase produced by Streptomyces albus was purified consecutively with dialysis, gel filtration and ion- exchange chromatography, the test isolate can be exploited for large scale production of chitinase.

Evaluation of antioxidant, phytochemicals and antibacterial potential of Mormordica charantia (Linn) against pathogenic bacteria isolated from ready to eat food sold in Akure Metropolis, Nigeria

Authors: Ibisanmi, Tope Abraham; Advisor: -; Participants: Aribisala, Jamiu Olaseni (2022)

Food hygiene and safety is of utmost importance for public health, as it helps to protect the health of consumers from foodborne illnesses. Although, hundreds of plant species have been screened and tested for antimicrobial properties, the vast majority of these plants have not been adequately screened and evaluated. Considering the vast potentiality of plants as sources for antimicrobial drugs, the present research aimed to evaluate antioxidant, phytochemicals and determine the antibacterial activity of M. charantia (Linn) on pathogenic organism from Ready-to-eat food sold in Akure metropolis.

Evaluation of the bioactive compounds of Vernonia amygdalina Delile extracts and their antibacterial potentials on water-related bacteria

Authors: Olusola-Makinde, Olubukola; Advisor: -; Participants: Olabanji, Olayinka Bukola; Ibisanmi, Tope Abraham (2021)

Aqueous extract of V. amygdalina had a higher percentage yield (11.89%) than the ethanol extract (5.37%). The GC–MS carried out revealed the presence of butanoic acid, squalene, palmitaldehyde, octadecanoic acid, Z-hexadecanoic acid ethyl ester, oxirane, tetradecyl, 3- methyl-2-phenylindole, n-heneicosane, phytol, methyl-2-O-benzyl-d-arabinofuranoside, cholest-5-en-3-ol acetate; with hexadecanoic acid ethyl ester and 1,1-diethoxy-3methylbutane having the highest percentage composition of 24.37% and 13.42% in aqueous and ethanol extract, respectively, aqueous extract highly inhibited Escherichia coli with an inhibition zone of 10.333 ± 0.882 and 36.667 ± 0.882 for 25 mg/ml and 100 mg/m...