NUTRITIONAL COMPOSITION AND ANTIMICROBIAL POTENTIAL OF Lenzites betulina, Pleurotus ostreatus AND Bjerkandera adusta EXTRACTS AS BIOACTIVE INGREDIENTS AGAINST SELECTED PATHOGENIC BACTERIA

Fakoya, S and faparusi, Foluso and Adeyemi, R (2021) NUTRITIONAL COMPOSITION AND ANTIMICROBIAL POTENTIAL OF Lenzites betulina, Pleurotus ostreatus AND Bjerkandera adusta EXTRACTS AS BIOACTIVE INGREDIENTS AGAINST SELECTED PATHOGENIC BACTERIA. Nigerian Journal of Mycology, 1 (3). pp. 116-130.

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Abstract

Extraction of bioactive component of wild mushrooms (Lenzites betulina, Pleurotus ostreatus and Bjerkandera adusta) using methanol, ethanol, petroleum ether and distilled water were carried out. The extracts were tested for antibacterial activities on some pathogenic bacteria (Klebsiella pneumonia, Escherichia coli, Proteus vulgaris, Staphylococcus aureus and Pseudomonas aeruginosa). The in vitro bioassay of the mushroom extracts on the tested bacteria was carried out using agar well diffusion method at a concentration of 50 mg/ml. The methanolic extract of P. ostreatus showed high inhibition against E. coli. The methanolic and ethanolic extracts of L. betulina exhibited high zone of inhibition 19.0 ± 0.15 mm and 18.0 ± 0.55 mm against S. aureus and K. pneumonia while S. aureus and K. pneumonia showed high resistance to all the mushrooms extract respectively. The proximate composition showed that sundried P. ostreatus had high protein content of 27.06 g/100g. Sundried and oven-dried L. betulina recorded 25.15 g/100 g and 24.98 g/100 g crude fibre content. Sundried and oven-dried L. betulina had low carbohydrate content 37.62% and 37.89%. There was no significant difference (p<0.05) in the moisture, fat and ash contents in the mushroom samples.

Item Type:	Article
Subjects:	Q Science > QR Microbiology Q Science > QR Microbiology > QR180 Immunology Q Science > QR Microbiology > QR355 Virology
Divisions:	Faculty of Engineering, Science and Mathematics > School of Chemistry
Depositing User:	Mr. Bolanle Yisau I.
Date Deposited:	12 Feb 2022 15:04
Last Modified:	12 Feb 2022 15:04
URI:	http://eprints.federalpolyilaro.edu.ng/id/eprint/1906

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