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C. N. Obi

Publications (10)

Isolation and Enzymatic Activity of Thermo-tolerant Bacteria from Waste Dumpsites in Umudikeand Environs

C. N. Obi, B. O. Ihuoma & S. Ike · Microbiology Research Journal International · 2021

The research studied the isolation of thermo-tolerant bacteria with enzymatic activity from waste dumpsites. 30 soil samples were collected using sterile spatular into sterile universal bottles, labelled and taken to the laboratory analyses. The soil samples were serially diluted...

Open access Research Article 10.9734/mrji/2021/v31i1230363

Amylase Production by Solid State Fermentation of Agro-industrial Wastes Using Bacillus species

C. N. Obi, O. Okezie & A. N. Ezugwu · European Journal of Nutrition & Food Safety · 2019

This study evaluated amylase production by Bacillus species employing the solid state fermentation (SSF) method using five agro-industrial wastes namely corn cobs, potato peel and maize straw, groundnut husk and corn chaff. Five Bacillus species were tested for amylase production...

Open access Research Article 10.9734/ejnfs/2019/v9i430087

Fermentation Reduces Cyanide Content during the Production of Cassava Flours from Sweet and Bitter Cassava Tuber Varieties

C. N. Obi, O. Okezie & T. Ukaegbu · Asian Food Science Journal · 2019

Sweet and Bitter Cassava tubers were fermented for production of cassava flours. The samples were peeled, washed with potable water and cut into slices of 5-6 cm length. They were steeped separately in water to ferment spontaneously for 4 days. The samples were serially diluted a...

Open access Research Article 10.9734/afsj/2019/v11i130050

Microbiological and Nutritional Changes Associated with the Thermal Processing and Fermentation of African Oilbean (Pentaclethra macrophylla) Seeds for ugba Production

C. N. Obi & M. U. James · South Asian Journal of Research in Microbiology · 2019

Boiled slices of African oil bean (Pentaclethra macrophylla) seeds were subjected to a 72-hour traditional fermentation to produce ugba for the evaluation of the effect of boiling and fermentation on the nutritional status of the seeds.  Bacterial isolates recovered from the ferm...

Open access Research Article 10.9734/sajrm/2019/v4i130100

Effect of Thermal Processing on the Nutritional Status of Soy Milks and Yoghurts Produced by Enhanced Spontaneous Fermentation

C. N. Obi & A. C. Nwoke · Asian Food Science Journal · 2018

This research was carried out to determine the effects of thermal process of boiling of soy bean seeds on the nutritional status of soy milk and soy yoghurt produced by fermentation. The soybean seeds were de-hulled, boiled and thermally processed to soymilk. Food sweetener (Gluc...

Open access Research Article 10.9734/AFSJ/2018/44099

Bio-preservative Activities of Partially Purified Bacteriocin Extracts of Lactobacillus mindensis TMW and Lactobacillus tucceti CECT 5920 Isolated from Nigerian Fermented Foods

C. N. Obi, O. K. Achi & E. Nwachukwu · European Journal of Nutrition & Food Safety · 2018

The preservative potentials of lactic acid bacteria (LAB) recovered from some Nigerian traditional fermented foods were assessed by inoculating 0.1 ml aliquots of suitable dilutions of the food samples on De Man Rogosa Sharpe (MRS) agar fortified with 50mg of nystatin. The isolat...

Open access Research Article 10.9734/EJNFS/2018/44097

Microbiological and Physico-chemical Analyses of Borehole Water Samples from Private Schools in Umuahia Metropolis, Abia State, Nigeria

C. N. Obi, A. L. Onyegbulam, F. Ejukonemu & M. Ubogu · Microbiology Research Journal International · 2015

The microbiological and physico-chemical analysis of randomly selected borehole waters used by staffs, students and pupils in twenty (20) private schools in Umuahia Abia State were carried out. Five bacteria: Escherichia coli, Staphylococcus aureus, Enterobacter aerogenes, Pseudo...

Open access Research Article 10.9734/BMRJ/2016/20136

Microbiological Examination of Household Kitchen Sponges from Three Communities in Ikwuano L. G. A, Umuahia, Abia State Nigeria

C. N. Obi & C. C. Ndukwu · Microbiology Research Journal International · 2015

Sixty kitchen sponges collected from the households in three major communities in Ikwuano L.G.A, Umuariaga, Amawom and Amaoba were examined microbiologically using standard methods. Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa and Aspergillus niger were recover...

Open access Research Article 10.9734/BMRJ/2016/19952

Determination of Proteolytic Activities of Bacillus species Isolated From Traditional Fermented Oil Bean Seed (UGBA: Pentaclethra macrophylla, Benth)

V. Orji, C. N. Obi & J. N. Ogbulie · Microbiology Research Journal International · 2015

Eighty samples of traditional fermented “ugba” (Pentaclethra macrophylla, Benth) wraps collected from eight markets in Umuahia were analyzed for proteolytic activities (by zone of inhibition in mm) of Bacillus species using two protein-based substrates: Skim Milk Agar and Nutrien...

Open access Research Article 10.9734/BMRJ/2015/15950