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G. O. Abu

Publications (25)

Screening and Biochemical Characterization of Indigenous Polyhydroxyalkanoates Producing Bacteria

B. N. Dienye, G. O. Abu & O. K. Agwa · Journal of Advances in Microbiology · 2023

Exploration for promising polyhydroxyalkanoates (PHA) producers is a continuous process as effort to mitigate the accumulation of synthetic plastic is on the rise. The present study focuses on isolation of indigenous polyhydroxyalkanoates producing bacteria from soil, waste water...

Open access Research Article 10.9734/jamb/2023/v23i2709

Screening, lipA Gene Amplification and Molecular Identification of Lipolytic Fungi from Contaminated Soils

A. E. Akinduyite, G. O. Abu & O. K. Agwa · Journal of Advances in Microbiology · 2022

Lipase is a glycerol ester hydrolase that hydrolyzes esters of triglycerides. This study aimed to isolate, screen and characterize lipolytic fungi with lipA gene from soil environments. Fungi [molds and yeasts] were isolated from contaminated soil samples randomly collected from...

Open access Research Article 10.9734/jamb/2022/v22i1030504

Optimization of Submerged Fermentation Parameters for Enhanced Lipase Production from Newly Isolated Lipolytic Yeasts using Agro Waste Substrates

A. E. Akinduyite, G. O. Abu & O. K. Agwa · Journal of Advances in Microbiology · 2022

Fungi are currently recognized as the most preferred sources of lipase due to their ability to produce copious amount of extracellular lipase with lower production’s and extraction’s costs. Lipase production was carried out in agro wastes formulated-liquid fermentation media at 3...

Open access Research Article 10.9734/jamb/2022/v22i1030503

Biosynthesis and Characterization of Algae oil Obtained from Chlorella vulgaris

I. Saidu, G. O. Abu, O. Akaranta, F. O. Chukwuma, S. Vijayalakshmi & J. Ranjitha · Journal of Materials Science Research and Reviews · 2021

Chlorella vulgaris was isolated from the African Regional Aquacultural Centre Aluu, Rivers State. The culture was grown and was analysed for oil contents using three different extraction methods and was also analysed for pigments and the algae oil was characterized. Pigment analy...

Open access Research Article

Biochemical Composition of Chlorella vulgaris Grown on Sugarcane Molasses

I. Saidu, G. O. Abu, O. Akaranta, F. O. Chukwuma, S. Vijayalakshmi & J. Ranjitha · Journal of Engineering Research and Reports · 2021

The quest for green and sustainable biofuel to serve as alternative to the conventional fossil fuel have remained a grey area in biotechnology. The Chlorella vulgaris was isolated from the African Regional Aquacultural Centre Aluu, Port Harcourt, Nigeria. Sugarcane Molasses modif...

Open access Research Article 10.9734/jerr/2021/v20i617334

Catechol-2,3-Dioxygenase and Crude Oil Biodegradation Screening of Rhizo-Bacterial Endophytes from Bodo-Gokana, Rivers State

J. E. Agbaji, G. O. Abu & E. O. Nwaichi · Current Journal of Applied Science and Technology · 2019

Strain-selection for the biotechnological application is critical in modern environmental bioremediation process design. In this study, twenty-one rhizobacterial isolates were obtained from the rhizosphere soil of Cyperus sp., Cyperus rotundus, Mariscus alternifolius and Maricus...

Open access Research Article 10.9734/cjast/2019/v38i630426

Production of Microbial Exopolysaccharide by Cost-effective Medium Opimization Method

I. G. Nwosu, G. O. Abu & K. O. Agwa · Journal of Advances in Microbiology · 2019

Microbial exopolysaccharide (EPS) emerged as a fast and high yielding sustainable polymeric substance which can be used as an alternative to synthetic polymer in industry. In this study, the influence of various nutritional and environmental factors of fermentation medium on bact...

Open access Research Article 10.9734/jamb/2019/v19i230189

Isolation, Screening and Characterization of Exopolysaccharide Producing Bacteria

I. G. Nwosu, G. O. Abu & K. O. Agwa · Microbiology Research Journal International · 2019

Exopolysaccharides(EPSs) are essential metabolites synthesized and excreted by certain microorganisms in response to extreme condition of pH, temperature, salinity, osmotic stress and other contaminants for survival in such adverse environment. The present study focuses on isolat...

Open access Research Article 10.9734/mrji/2019/v29i530174

Application of Response Surface Methodology for Optimizing the Production of Bioethanol from Calabash (Crescentia cujete) Substrate Using Saccharomyces cerevisiae

N. U. Nwogwugwu, G. O. Abu, O. Akaranta & E. C. Chinakwe · Journal of Advances in Microbiology · 2019

Aim: The study employed the Response surface methodology (RSM) model to optimize ethanol production from Calabash (Crescentia cujete) pulp juice using Saccharomyces cerevisiae. Study Design: The Calabash pulp was squeezed with muslin cloth, and vacuum filtered to clear solution b...

Open access Research Article 10.9734/jamb/2019/v17i230139

Investigating the Effectiveness between Using Pseudomonas fluorescens and Its Biosurfactant in Bioremediation of Petroleum Hydrocarbon Contaminated Soil

P. L. Peekate, G. O. Abu & C. J. Ogugbue · Asian Journal of Biotechnology and Bioresource Technology · 2018

Investigating the Effectiveness between Using Pseudomonas fluorescens and Its Biosurfactant in Bioremediation of Petroleum Hydrocarbon Contaminated Soil Aim: To investigate the effectiveness of using Pseudomonas fluorescens and its biosurfactant in bioremediation of petroleum hyd...

Open access Research Article 10.9734/AJB2T/2018/40528

Optimizing C:N Ratio, C:P Ratio, and pH for Biosurfactant Production by Pseudomonas fluorescens

P. L. Peekate & G. O. Abu · Journal of Advances in Microbiology · 2017

Aim: To optimize the combination of selected culture medium parameters so as to achieve maximum biosurfactant production from Pseudomonas fluorescens. Study Design: (1) Culturing P. fluorescens for biosurfactant production using a glycerol-mineral salt media with variations in  r...

Open access Research Article 10.9734/JAMB/2017/38199

Inhibition of Biogenic Sulphide Production and Biocorrosion of Carbon Steel by Sulphate-reducing Bacteria Using Ocimum gratissimum Essential Oil

O. M. Immanuel, G. O. Abu & H. O. Stanley · Journal of Advances in Biology & Biotechnology · 2016

The inhibition effects of Ocimum gratissimum essential oil (OGEO) on biogenic sulphide production and biocorrosion of carbon steel by Sulphate-reducing bacteria (SRB) were investigated in the laboratory. SRB were isolated from injection and produced water from Bonga oilfield in N...

Open access Research Article 10.9734/JABB/2016/28786

Molecular Characterization, Optimization and Production of PHA by Indigenous Bacteria Using Alternative Nutrient Sources as Substrate

B. N. Dienye, O. K. Agwa & G. O. Abu · Microbiology Research Journal International · 2022

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 Article 10.9734/mrji/2022/v32i111352

Air Quality at Artisanal Crude Oil Refinery Sites in Igia-Ama, Tombia Kingdom, Rivers State, Nigeria

D. B. Onwuna, H. O. Stanley, G. O. Abu & O. M. Immanuel · Asian Journal of Advanced Research and Reports · 2022

Artisanal crude oil refining is an illegal operation thriving in the oil-rich Niger Delta region of Nigeria, and their activities are known to cause serious air pollution, evident by incidences of black soot pollution in many parts of this region. This study aimed to ascertain th...

Open access Research Article 10.9734/ajarr/2022/v16i12450

Impact of Artisanal Crude Oil Refinery on Physicochemical and Microbiological Properties of Soil and Water in Igia-Ama, Tombia Kingdom, Rivers State, Nigeria

D. B. Onwuna, H. O. Stanley, G. O. Abu & O. M. Immanuel · Asian Journal of Environment & Ecology · 2022

This study aimed to determine the impact of artisanal refinery operations on the physicochemical and microbiological properties of soil and water in Igia-Ama, Tombia Kingdom, Rivers State, Nigeria. Physicochemical parameters along with concentrations of heavy metals, polyaromatic...

Open access Research Article 10.9734/ajee/2022/v19i3412

Screening, Characterization and Identification of Sophorolipid-Producing Yeast Isolated from Palm Oil Effluent Polluted Soil

K. F. Williams, O. K. Agwa, G. O. Abu & O. Akaranta · Journal of Advances in Microbiology · 2021

Aim: This study investigated the screening, characterization and identification of sophorolipid-producing yeast isolated from palm oil effluent polluted soil. Place and Duration: Two soil samples impacted with palm oil mill effluent were obtained from Elibrada and Rumuche in Emoh...

Open access Research Article 10.9734/jamb/2021/v21i1230409

Antimicrobial Activity and Toxicity of Sophorolipids Produced by Candida haemulonis and Saccharomyces cerevisiae against Some Selected Microorganisms

K. F. Williams, O. K. Agwa, G. O. Abu & O. Akaranta · Journal of Advances in Biology & Biotechnology · 2021

Sophorolipid have been identified to possess varying antagonism relationship to a number microbiota, although having been identified as being ecologically friendly. The biosafety of biologically synthesized materials has been identified as a major challenge to commercialization a...

Open access Research Article 10.9734/jabb/2021/v24i930234

Toxicological Assessment of Crops Grown in Soils Amended with Municipal Solid Waste Ash

G. D. Ibrahim, E. O. Nwaichi & G. O. Abu · Journal of Scientific Research and Reports · 2021

This study assessed heavy metals (As, Cd, Cr, Cu, Pb, Ni, Fe and Zn) in sites and food crops (beans and groundnuts) harvested from farmland amended with municipal solid waste (MSW) ash. Farmlands with no amendments and crops grown on such soils served as control. Soils and crops...

Open access Research Article 10.9734/jsrr/2021/v27i130343

Niche-proxies of Hydrocarbon-impacted Rhizosphere Soil of Weeds of Bodo in Gokana, Rivers State, Nigeria

E. Effiong, O. K. Agwa & G. O. Abu · Archives of Current Research International · 2020

Niche-ecology and isolation studies of microbes from the environment have been described as the bedrock and driving-force for bioprocess industry. This investigation was designed to determine the microbiological quality of weeds growing on aged-crude oil polluted soil.  Ten (10)...

Open access Research Article 10.9734/acri/2019/v19i430161

Algal-biomass Production from Chlorella sp. Using Hot and Cold Water Infusions of Poultry Droppings

E. Effiong, O. K. Agwa & G. O. Abu · Asian Journal of Biotechnology and Bioresource Technology · 2019

Background: Microbial biomass is a valuable resource to the development of sustainable energy. However, the challenge of having an effective media for energy production have adversely affected biotechnological development. This study was aimed at comparing algal biomass produced...

Open access Research Article 10.9734/ajb2t/2018/v4i430048

Effect of Liquid Digestate on Agricultural Soil – I: Growth Dynamics of Zea mays Plant

H. O. Stanley, C. B. Ogbonna, G. O. Abu & C. J. Ugboma · Journal of Experimental Agriculture International · 2019

The study was designed to model the effect of liquid digestate on growth dynamics of Zea mays plant. Maize seeds were subjected to various concentrations of liquid digestate (between 0% and 72%) using One-Factor Response Design with a total of ten (10) runs in 10L-capacity plasti...

Open access Research Article 10.9734/jeai/2019/v31i530083

Dynamics of Micro/Macro Elements and Heavy Metals during Anaerobic Treatment of Organic Fraction of Municipal Solid Waste (OFMSW)

H. O. Stanley, C. B. Ogbonna & G. O. Abu · Asian Journal of Biotechnology and Bioresource Technology · 2017

In this study, the dynamics of macro and micro elements (including heavy metals) during anaerobic treatment of organic fraction of municipal solid waste (OFMSW) was investigated to determine the effect of seasonal variation on the performance of the treatment process. The first a...

Open access Research Article 10.9734/AJB2T/2017/37831

Physico-chemical Quality Characteristics and Hazard Analysis Critical Control Points for the Production of Millet-based Kunun Zaki Obtained from Three Production Locations in Port Harcourt, Nigeria

C. N. Elele, S. N. Ibe & G. O. Abu · Microbiology Research Journal International · 2014

Aim: To study the commercial preparation of Kunun zaki in three locations in Port Harcourt namely; Bori-camp, Rumuodomaya and Mgbuogba, to compare the microbiological, physico-chemical, and nutritional qualities of commercial and laboratory-prepared Kunun drinks and to establish...

Open access Research Article 10.9734/BMRJ/2014/9156

Growth of Chlorella sp. on Flue Gas

H. A. Neboh, O. K. Agwa & G. O. Abu · Current Journal of Applied Science and Technology · 2013

Aims: To use the ubiquitous dirt scavenger, Chlorella sp. as an affordable, low tech transducing device in the interplay between energy utilization and extreme climatic and ecological impacts which is a key to sustainable development. Methodology: Chlorella sp. was isolated from...

Open access Research Article 10.9734/BJAST/2014/7064