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Current Research in Agricultural Sciences

June 2021, Volume 8, 1, pp 47-55

Bacteriological Quality and Cyanide Contents of Different Cassava Products Processed in Benue State for Use as Food for Man or Feedstock for Animals

Alphonso. O. Nwankiti

,

Innocent. O. Ogbonna

,

Christopher O. Eche

Alphonso. O. Nwankiti 1 Innocent. O. Ogbonna 2

Christopher O. Eche 1 

  1. Department of Crop and Environmental Protection, Federal University of Agriculture, Makurdi, Nigeria. 1

  2. Department of Microbiology, Federal University of Agriculture, Makurdi, Nigeria. 2

Pages: 47-55

DOI: 10.18488/journal.68.2021.81.47.55

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Article History:

Received: 10 December, 2019
Revised: 30 December, 2020
Accepted: 26 March, 2021
Published: 13 April, 2021


Abstract:

The bacteriological profiles of the different cassava products were investigated. Ground cassava samples, serially diluted with sterile normal saline were cultured in different sterile bacteriological media. Hydrogen cyanide content was determined by spectrometric method. Colonies isolated from the different locations were statistically the same for total viable bacterial counts (TVBC). Cassava peels had the highest values of TVBC (4.456 log10CFU/g) TCC (3.025 log10CFU/g) EC (1.663) and SA counts. Gari had the lowest values of TVBC (3.193) TCC (2.580) EC (not isolated) and SA counts. The traditionally processed cassava products showed no statistically significant differences (p<0.05) with the mechanically processed products except in fufu. The total viable bacterial count was highest in cassava products dried along the roadside (6.980 log10CFU/g) and lowest oven-dried cassava products (2.763 log10CFU/g). No Salmonella and Shigella spp. were isolated in most of the assayed cassava products. The identified storage places of the cassava products did not significantly impact any difference on the bacterial load. There was a progressive decrease in the cyanide contents from cassava peels to cassava chips to fufu and least in gari. The highest hydrogen cyanide concentration of 14.50 mg/kg was recorded in cassava peels and was higher than 10 mg of HCN/kg body weight recommended by WHO. Gari had the least content of 2.25 mg/kg. The study provides information on potential infections and toxicities due to the microorganisms and cyanide level.
Contribution/ Originality
This study is one of the very few studies which have investigated bacteriological quality of different cassava products processed in Benue State for use as food for man or feedstock for animals.

Keywords:

Bacteriological quality, Cassava products, Cyanide, Total viable bacterial count , Total coliform count.

Reference:

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Funding:

Authors acknowledge the financial support from the Tertiary Education Trust Fund based in Abuja Nigeria and the encouragement from the Vice-Chancellor, Director of Research and Mr. Otolo Ogili, all of Federal University of Agriculture, Makurdi.

Competing Interests:

The authors declare that they have no competing interests.

Acknowledgement:

All authors contributed equally to the conception and design of the study.

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( 264 ) Survey on Economical Important Fungal Diseases of Tomato in Sub-Zoba Hamemalo of Eritrea
( 266 ) Microbial Degradation of Organic Waste through Vermicomposting
( 267 ) Identification of Cattle Persistently Infected With BVDV (PI) By Ear-Notch Testing In Southeast of Iran
( 270 ) Fetal Maceration in Crossbred Holstein Frisian Heifer-A Case Report
( 271 ) Frequency of Gastrointestinal Parasites and Egg per Gram Faeces Count of Nematodes in Black Bengal Goat under Field Condition in West Bengal, India
( 273 ) Screening of Some Coffee Arabica Genotypes Against Coffee Wilt Diseases (Gibberella Xylarioides Heim And Saccus) At Jimma, Southwest Ethiopia
( 275 ) Combined Microbial Inoculation as a Promising Approach to Enhance Promiscuous Soybean Nodulation and Nitrogen Content in Sudan Savanna
( 278 ) An Analysis of the Pre and Post Harvest Management Techniques in Rice Production: The Case of Unvda Ndop, North West Region, Cameroon
( 279 ) Comparative Analysis of Technical Efficiencies of Smallholder Vegetable Farmers with and Without Credit Access in Swazil and the Case of the Hhohho Region
( 284 ) Genetic Divergence and Character Association of Kabuli-Type Chickpea (Cicer Arietium) Genotype under Rainfed Conditions in Ethiopia
( 285 ) Effect of Sodium Alginate Coating with Ascorbic Acid on Shelf Life of Raw Pork Meat
( 286 ) Apparent Metabolisability of Diets Containing Concentrate, Zostera Noltii or Taraxacum Officinalis in Anas Penelope
( 287 ) Management of Root-Knot Nematode, Meloidogyne Javanica Infecting Sunflower by Some Composted Plant or Animal Residues as Soil Amendments in Egypt
( 288 ) Nutrient Composition, Amylose Content and Pasting Characteristics of Some Elite Accessions of Nerica Rice
( 290 ) Effect of Contamination by Fungi and Yeast on the Physiochemical Characteristics of Gum Arabic Stored in Semi-Desert Climate of Khartoum City, Sudan
( 292 ) Assessments of Market Oriented Beef Cattle Fattening System Under Farmer Management Condition in South Omo Zone of Snnpr
( 293 ) The Domestic Livestock Resources of Turkey: Social Aspects, Genetic Resources and Conservation of Companion Animal Cats (Felis Catus)
( 294 ) Monosex Barb (Osteochilus Hasselti ) Culture with Reduction Feed on Economic Efficiency and Cost Reduction at Net Cage in Cirata Reservoir
( 296 ) Straw Composting with Biological Agent Inoculation and Application Biofertilizer to Increase Rice Production
( 299 ) Comparing Post-Partum Growth by Body Weight between Sex and Litter Size of Agouti (Dasyprocta Leporina) Offspring from Birth to 360 Days Old
( 304 ) Stage Specific Life Table of Invasive Pest Mealybug, Phenacoccus Solenopsis (Tinsley) Under Cotton Field Conditions
( 307 ) Molecular Studies on E.Coli Isolate from Milk of Mastatic Cattle with Special Reference to Associated Biochemical Changes in Kaliobea Governorate
( 308 ) Helminths and Protozoa of the Gastrointestinal Tract of Ruminants in Tanzania
( 311 ) Runoff Response to Climate Variability: An Analysis of Thika River Basin in Kenya Using Hydrological Simulation Model (Hysim)
( 316 ) Competency Assessment of Veterinary Medicine Students Who are Trained in Basra Veterinary Hospital - 2017
( 317 ) Utilization of Fish and Mango Wastes on Biological Silage Production
( 319 ) Assessment of Potassium Leaching Behaviour in Selected Soils of Southeastern Nigeria
( 320 ) The Simulation of Egg Hatching Trend of Aedes Aegypti Associated with Rainfall Distribution