The determination of the bio-utilization of used and unused car lubricants; engine oil, hydraulic and transition oil were analyzed using viable counts and spectrophotometric analysis. The oil samples were collected with 10 sterile containers from different mechanic workshops in C...
Open access
Research Article10.9734/mrji/2022/v32i11-121379
Yves Didier Mboma Nseme, Kevin Fabrice Paul Mandeng, Jafarou Mounpou, Imelda Lucresse Nouteza Djuikoo, Maxwell Wandji Nguedjo, Roger Moïse Mbanga Baleba, Hippolyte Tene Mouafo & Gabriel Nama Medoua·Microbiology Research Journal International·2022
The aim of this study was to quantify the bioactive compounds in mangosteen fruit peels and assess their antioxidant activity. Peels from washed mature fruits of Garcinia mangostana (L.) were dried, crushed, and sieved, and the bioactive compounds were extracted using distilled w...
Open access
Research Article10.9734/mrji/2022/v32i111354
The global industrialization of chemical dyes used for household products has resulted in various dyes leaching into the soil. Azo dye textile contamination could lead to infertile soil. This study investigates the ecological effect of azo textile dye contamination on bacterial b...
Open access
Research Article10.9734/mrji/2022/v32i11-121355
L-Lysine is an essential amino acid that is required in the diet of humans and animals. It is utilized in human medicine, cosmetics and pharmaceutical industry. ’The influence of agitation rates, pH and calcium carbonate on L-lysine production by Bacillus subtilis using agricult...
Open access
Research Article10.9734/mrji/2022/v32i111351
Polyhydroxyalkanoates (PHA) are renewable, biodegradable biopolymer intracellularly accumulated by wide array of microorganisms as carbon reserve. This study investigates the influence of various cultural conditions on PHA production by a recently isolated local species under sub...
Open access
Research Article10.9734/mrji/2022/v32i111352
The comparative study of poultry wastes- and HBB5 biosurfactant-mediated polyaromatic hydrocarbon biodegradation in sediment polluted with crude oil were investigated. The experiments were carried out for a period of 28 days by monitoring pH, nitrate, phosphate, polycyclic aromat...
Open access
Research Article10.9734/mrji/2022/v32i111353
Proteases are one of the most industrially important enzymes, which account for about 60% of total enzyme market. Protease production by submerged fermentation in shake flasks using Bacillus sp. isolated from the soil was studied. Soil samples were collected from different locati...
Open access
Research Article10.9734/mrji/2022/v32i101350
Honey is a natural product produced by bees from the nectar of flowers. It is a very healthy food whose multiple properties significantly improve health and prevent many diseases. However, some practices can affect its quality, hence the objective of the study was to assess the h...
Open access
Research Article10.9734/mrji/2022/v32i101349
Aims: The banana dessert grown in different regions of the world, encounters important difficulties that cause it to lose its marketability especially because of the diseases related to conservation. The objective here is to identify the strains responsible for fungal diseases of...
Open access
Research Article10.9734/mrji/2022/v32i101348
Aims: The aim of this study was to evaluate extract development of sorghum grains during malting and utilization of bitter leaf for production of beer using S. cerevisiae. Study Design: Randomized experimental design was used to achieve the aim of the study. Place and Duration of...
Open access
Research Article10.9734/mrji/2022/v32i101347