J. M. Madu

Mycoflora of Crude Oil Polluted Soils of Ukwa West of Abia State Nigeria

J. M. Madu, A. I. Ogbonna & C. I. C. Ogbonna · South Asian Journal of Research in Microbiology · 2021

Aim: Bioremediation of soil play a critical role in removing pollutants from crude oil polluted soil. To investigate the mycoflora of crude oil polluted area of Ukwa West Local Government in the present Abia State. Methodology: Portions of the soil samples collected from three (3...

Open access Research Article 10.9734/sajrm/2021/v11i130240

Effects of Process Parameters on the Activities of Enzymes by Different Species of Aspergillus in Crude Polluted Soil Sites

J. M. Madu, A. I. Ogbonna & C. I. C. Ogbonna · Biotechnology Journal International · 2021

The effects of temperature, pH and incubation time on amylase, protease and cellulase activity by different species of Aspergillus in crude oil polluted soil sites in Nigeria were studied. Incubation period, Optimal pH values and temperatures for the enzymes produced by the diffe...

Open access Research Article 10.9734/bji/2021/v25i330140

Quantitative Assessment of Hydrolytic Potentials of Fungal Isolates from Crude Oil Impacted Soil Ecosystem in Varied Media Formulations

J. M. Madu, A. I. Ogbonna & C. I. C. Ogbonna · Journal of Advances in Microbiology · 2020

Background of the Study: A quantitative assessment of different enzymes that produce the best of hydrolyses of starch, skim milk, carboxymathlcellulose (CMC) and groundnut oil which were further assessed for the production of extracellular enzyme.  Aim: The study aimed at assessi...

Open access Research Article 10.9734/jamb/2020/v20i1130298

Evaluation of Vitamins C and E on Spermeogram and Malondialdehyde Concentration in Chilled Semen of Nigerian Indigenous Turkey Toms (Meleagris gallopavo)

W. O. Echekwu, J. M. Madu, R. O. Okeke, I. G. Opaluwa-Kuzayed, E. S. Idoga, I. O. Suleiman & D. S. Bunjah Umar · Asian Journal of Biotechnology and Bioresource Technology · 2021

The study aims to evaluate the effect of antioxidant vitamins C and E on spermeogram and malondialdehyde concentration in chilled semen of Nigerian indigenous turkey toms (Meleagris gallopavo). The results from this study showed that supplementation of the diluents of turkey seme...

Open access Research Article 10.9734/ajb2t/2021/v7i230097

Optimization Studies on Extracellular Protease Production by Aspergillus niger and Aspergillus terreus Using Skim Milk Casein as Substrate

F. E. Ekedegba, A. I. Ogbonna, C. T. Okoye, U. S. A. Ogbonna, I. A. Onyimba & J. M. Madu · Journal of Advances in Biology & Biotechnology · 2022

Aim: Proteases are proteolytic enzymes that have a wide range of applications in the industrial sectors. This study investigated the production and optimization of protease by protease-producing fungi, (Aspergillus niger and A. terreus) using skim milk casein as substrate. Materi...

Open access Research Article 10.9734/jabb/2022/v25i730291

Varimax Rotated Principal Component Analysis of Productive Traits in Nigeria Indigenous Cattle Raised under Semi-Intensive Management System

D. S. Bunjah Umar, R. O. Okeke, A. C. Nwanmmo, M. O. Bello, O. G. Allen, O. O. Adeniyi, J. M. Madu, L. N. Panshak & D. M. Allen · Asian Research Journal of Agriculture · 2021

The objectives of this study were to quantify the production traits using principal component analysis in Bunaji and Gudali cattle. Morphological traits of Body weight (Kg); BL: Body Length (Cm); HW: Height at withers (cm); CW: Chest width (cm); HG: Heart Girth (cm); Rumwi: Rump...

Open access Research Article 10.9734/arja/2021/v14i430134