alexa Nutritional and Bioactive Compounds Evaluation of Pleur
ISSN:2157-7463

Journal of Petroleum & Environmental Biotechnology
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Research Article

Nutritional and Bioactive Compounds Evaluation of Pleurotus pulmonarius (Freis) Quell Fruit bodies Grown on Different Wood Logs in Abia State, Nigeria

Nwoko MC1, Onyeizu UR2*, Okwulehie IC1 and Ukoima HN3

1Department of Plant Science and Biotechnology, Michael Okpara University of Agriculture Umudike, Nigeria

2Department of Environmental Management and Toxicology, Michael Okpara University of Agriculture Umudike, Nigeria

3Department of Forestry and Environment, Rivers State University of Science and Technology, Port Harcourt, Nigeria

*Corresponding Author:
Onyeizu UR
Department of Environmental Management and Toxicology
Michael Okpara University of Agriculture Umudike, Nigeria
Tel: +2348065189734
E-mail: [email protected]

Received Date: February 25, 2017; Accepted Date: April 25, 2017; Published Date: April 30, 2017

Citation: Nwoko MC, Onyeizu UR, Okwulehie IC, Ukoima HN (2017) Nutritional and Bioactive Compounds Evaluation of Pleurotus pulmonarius (Freis) Quell Fruit bodies Grown on Different Wood Logs in Abia State, Nigeria. J Pet Environ Biotechnol 7:325. doi: 10.4172/2157-7463.1000325

Copyright: © 2017 Nwoko MC, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

 

Abstract

Abstract

This study was conducted to determine the nutritional and bioactive compounds composition of Pleurotus pulmonarius fruit bodies cultivated on tree logs of Dacryodes edulis, Mangifera indica and Treculia africana. Pure mycelium culture of P. pulmonarius was aseptically bulked in sorghum grains. Logs were cut into average length of 18 cm with inoculation holes of 3 cm × 15 mm diameter; using High Speed Drill (HSD) of 5 drill bit and allowed to decompose for 8months. During mushroom cultivation, logs were soaked in tap water for 24 hrs and pasteurized at 80°C in an improvised metallic drum (IMD) for 1hour; using cooking gas as heat source and allowed to cool overnight. 10 g of grain based spawn was inserted into 2/3 of each hole by way of inoculation and sealed with sterile polybag for mycelium incubation. Polybags were cut open after spawn run following primordial initiation. Fruit bodies were harvested at maturity, sun-dried ground and packed in airtight container prior to further analysis. Data were analyzed using Analysis of Variance (ANOVA) and mean separation by Duncan Multiple Range Test (DMRT) while levels of significance were determined at 5%. Results indicate that P. pulmonarius fruit bodies harvested from various tree logs were significantly different p<0.05 in their nutritional and bioactive compounds composition. Fruit body samples were rich in protein, carbohydrates, Na, K, and Ca. It was also observed that fruit bodies contained significant amount of Alkaloids, Tannins and Saponins; and could be useful in drug synthesis. Therefore, adopting this technique in oyster mushroom cultivation would lead to more jobs creation and food security; but this must be done with careful regulations to avoid indiscriminate felling of trees.

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