Joseph P. Essien
YOU?
Author Swipe
View article: Diversity and host structure affinity of endophytic fungi associated with deltaic mangroves in Iko River Estuary, Nigeria
Diversity and host structure affinity of endophytic fungi associated with deltaic mangroves in Iko River Estuary, Nigeria Open
This study evaluates the diversity and host structure affinity of endophytic fungi in deltaic mangroves (Rhizophora. mangle, Lacugularia racemosa and Avicennia africana) of Iko River Estuary located in the Niger Delta of Nigeria. The endop…
View article: Microbial population dynamics and mineralization rates in hydrocarbon contaminated Ultisol amended with organic wastes
Microbial population dynamics and mineralization rates in hydrocarbon contaminated Ultisol amended with organic wastes Open
Microbiological analysis and analytical techniques were used to determine the population dynamics and mineralization rates of a simulated hydrocarbon-contaminated garden ultisol treated with the bacterized organic wastes. The In-Vessel Sys…
View article: Phytochemical Associes of Fungal Endophytes in Nigeria Riverine Mangrove Ecosystem
Phytochemical Associes of Fungal Endophytes in Nigeria Riverine Mangrove Ecosystem Open
The interaction between endophytic fungi and phytochemicals in the dominant mangroves (Rhizophora mangle, Lacugularia racemosa, and Avicennia africana) of the Iko River Estuary in Nigeria was investigated. Standard analytical procedures we…
View article: Catabolic gene indices of hydrocarbon diminution in Ultisol treated with cropped Bacillus altitudinis-amendments
Catabolic gene indices of hydrocarbon diminution in Ultisol treated with cropped Bacillus altitudinis-amendments Open
This study evaluated catabolic gene expression as an index of hydrocarbon breakdown in ultisol treated with Bacillus altitudinis-Cropped Biofertilizers derived from Biosolid and Brewer Spent Grain (BSG) using phenotypic and molecular metho…
View article: Antibiosis and GC-MS of secondary metabolites of rhizosphere bacteria from Manatee foodplants in the humic freshwater ecosystem of Eniong river, Nigeria
Antibiosis and GC-MS of secondary metabolites of rhizosphere bacteria from Manatee foodplants in the humic freshwater ecosystem of Eniong river, Nigeria Open
Microorganisms are able to synthesize secondary metabolites of various structures and bioactivities. These metabolites are produced to help the organism compete successfully with other organisms in their natural habitat and adapt with chan…
View article: Correction: Occurrence and spatial distribution of heavy metals in landfill leachates and impacted freshwater ecosystem: An environmental and human health threat
Correction: Occurrence and spatial distribution of heavy metals in landfill leachates and impacted freshwater ecosystem: An environmental and human health threat Open
[This corrects the article DOI: 10.1371/journal.pone.0263279.].
View article: Air Quality Index of some Commercial Centres in Uyo Metropolitan Area, Akwa Ibom State, Nigeria
Air Quality Index of some Commercial Centres in Uyo Metropolitan Area, Akwa Ibom State, Nigeria Open
Commercial activities in urban cities in the world have contributed to the development of the society and at the same time impact negatively on the environment. This study investigated the influence of some commercial centres namely: Akpan…
View article: Production, characterization and techno-economic evaluation of Aspergillus fusant l-asparaginase
Production, characterization and techno-economic evaluation of Aspergillus fusant l-asparaginase Open
Protoplast fusion is one of the most reliable methods of introducing desirable traits into industrially-promising fungal strains. It harnesses the entire genomic repertoire of fusing microorganisms by routing the natural barrier and geneti…
View article: Stochastic modeling and meta-heuristic multivariate optimization of bioprocess conditions for co-valorization of feather and waste frying oil toward prodigiosin production
Stochastic modeling and meta-heuristic multivariate optimization of bioprocess conditions for co-valorization of feather and waste frying oil toward prodigiosin production Open
Serratia marcescens strain UCCM 00009 produced a mixture of gelatinase and keratinase to facilitate feather degradation but concomitant production of prodigiosin could make waste feather valorization biotechnologically more attractive. Thi…
View article: A novel strain of Stenotrophomonas acidaminiphila produces super-active alkaline protease during cassava effluent fermentation: process optimization, kinetic modeling and scale-up
A novel strain of Stenotrophomonas acidaminiphila produces super-active alkaline protease during cassava effluent fermentation: process optimization, kinetic modeling and scale-up Open
Microbial fermentations for value-added metabolites production are exploited for efficient bioconversion of agro-industrial wastes for the dual purposes of pollution abatement and cost-effectiveness. In the present study, the regular 2-lev…
View article: A Novel Strain of Stenotrophomonas Acidaminiphila Produces Super-active Alkaline Protease During Cassava Effluent Fermentation: Process Optimization, Kinetic Modeling and Scale-up
A Novel Strain of Stenotrophomonas Acidaminiphila Produces Super-active Alkaline Protease During Cassava Effluent Fermentation: Process Optimization, Kinetic Modeling and Scale-up Open
PurposeMicrobial fermentations for value-added metabolites production are exploited for efficient bioconversion of agro-industrial wastes for the dual purposes of pollution abatement and cost-effectiveness.MethodsIn the present study, the …
View article: Microbial Diversity of Nigerian Sludge and Its Potential for Use as Biofertilizer
Microbial Diversity of Nigerian Sludge and Its Potential for Use as Biofertilizer Open
Sludge samples were collected from a wastewater treatment plant in Nigeria for characterization and evaluation for agricultural applications. Conventional and Molecular techniques were adopted for the isolation and identification of indige…
View article: Influence of composting and thermal processing on the survival of microbial pathogens and nutritional status of Nigeria sewage sludge
Influence of composting and thermal processing on the survival of microbial pathogens and nutritional status of Nigeria sewage sludge Open
Purpose Sewage sludge samples from a water treatment plant in Nigeria were subjected to an in-vessel composting (using sawdust as a bulking agent) and thermal sludge processing to improve its quality for agricultural applications. Methods …
View article: Distribution and risk assessment of trace metals in <i>Leptodius exarata</i>, surface water and sediments from Douglas Creek in the Qua Iboe Estuary
Distribution and risk assessment of trace metals in <i>Leptodius exarata</i>, surface water and sediments from Douglas Creek in the Qua Iboe Estuary Open
Five trace metals in Leptodius exarata, epipellic sediments and surface water from an intertidal ecosystem in the Niger Delta (Nigeria) were studied to evaluate their spatial distributions, degrees of contamination, and associated ecologic…
View article: Source Evaluation and Trace Metal Contamination in Benthic Sediments from Equatorial Ecosystems Using Multivariate Statistical Techniques
Source Evaluation and Trace Metal Contamination in Benthic Sediments from Equatorial Ecosystems Using Multivariate Statistical Techniques Open
Trace metals (Cd, Cr, Cu, Ni and Pb) concentrations in benthic sediments were analyzed through multi-step fractionation scheme to assess the levels and sources of contamination in estuarine, riverine and freshwater ecosystems in Niger Delt…
View article: Ammonium Oxidizing Bacteria Activity and Nitrification Rate in Oil Contaminated Wetland Soil under Remediation with Nutrient Supplements and Leguminous Plants
Ammonium Oxidizing Bacteria Activity and Nitrification Rate in Oil Contaminated Wetland Soil under Remediation with Nutrient Supplements and Leguminous Plants Open
Previous investigation on the impact of crude oil on the growth of tropical legumes and its effect on nitrogen dynamics in wetland ultisol showed that oil contamination reduced N uptake by plants but increased N accumulation in soil microb…