African Journal of

  • Abbreviation: Afr. J. Biotechnol.
  • Language: English
  • ISSN: 1684-5315
  • DOI: 10.5897/AJB
  • Start Year: 2002
  • Published Articles: 12291

Table of Content: August 2020; 19(8)

August 2020

A survey of the aflatoxin level and molecular identification of fungal contaminants in poultry feed mills from different geopolitical zones of Nigeria

Aflatoxin contamination of poultry feeds in Nigeria is a common problem in most feed mills. A survey on the distribution of aflatoxin in feed mills from different parts of Nigeria was carried out. The aflatoxin concentration in most feed mills from the North-western part of Nigeria was low compared to the concentration in the feed mills from the South-eastern part. The total aflatoxin level in three feed mills (B, C and...

Author(s): Anthony C. Mgbeahuruike, Emmanuela I. Nwoko and Onwumere O. S. Idolor  

August 2020

Molecular epidemiology of schistosomiasis in Central River Region of The Gambia

Schistosomiasis is the second most prevalent tropical parasitic disease after malaria, and one of the leading cause of morbidity and mortality in developing countries especially in Africa. This study was carried out among students, farmers and fishermen/women from four villages in the Central River Region of The Gambia. The aim of this study was to show the prevalence value of schistosomiasis in Central River Region of...

Author(s): A. Mendy, A. Kargbo, Y. K. E. Ibrahim, M. E. Entonu and T. T. Gbem,  

August 2020

Wolbachia infected anthropophilic mosquitoes in The Gambia are not infected with filarial nematode

Wuchereria bancrofti has been reported to cause 90% of all cases of lymphatic filariasis in Africa. wolbachia endosymbiot infect a wide range of insects and nematodes. This study was conducted in 48 settlements (8 from each division). A total of 2003 mosquitoes was pooled into 120 clusters from the 48 settlements in The Gambia. Polymerase chain reaction (PCR) was used to detect the presence of Wolbachia and filarial...

Author(s): S. Sanneh, A. Kargbo, M. E. Entonu, Y. K. E. Ibrahim and S. Nasiru

August 2020

Genetic characterization of indigenous Tswana pig population using microsatellite markers

The indigenous Tswana pig is currently listed as an endangered animal genetic resource and if not conserved, might go extinct. The objective of this study was to assess the genetic diversity (genetic characterization) of the indigenous Tswana pig population. Blood samples were collected from 30 randomly selected Tswana pigs in Kgatleng and South-East districts of Botswana for the assessment of genetic diversity using a...

Author(s): Mosweu Nicodemus, Thutwa Ketshephaone, Nsoso Shalaulani James and Kgwatalala Patrick Monametsi  

August 2020

Natural occurrence of products of cryptic pathway metabolites of pharmacological importance using liquid chromatographic-mass spectrometric techniques in date palm fruit, garlic bulb and groundnuts from North-West Nigeria markets

Investigation of secondary metabolites from the cryptic metabolic pathways in date palm fruit, garlic bulb and groundnuts from North-West Nigeria was conducted using liquid chromatography-mass spectrometry and mass spectrometry (LC-MS/MS). Results indicated the presence of several compounds which include Valinomycin, asperglaucide, asperphenamate, cyclo (L-Pro-L-Tyr). Cyclo (L-Pro-L-Val), emodin, physcion, integracin A...

Author(s): Lateef Ariyo Adeniran, Toba Samuel Anjorin, Michael Sulyok, Rudolf Krska and Olatunde Peter Ajagbonna  

August 2020

Comparative study of single nucleotide polymorphisms (SNPs) of a candidate growth gene (IGF-I) in Oreochromis niloticus and Sarotherodon melanotheron

In teleost fishes, the regulation of growth performance by the GH and IGF system also seems to be highly conserved. Adult Oreochromis niloticus (Nile tilapia) could reach up to 60 cm maximum length while Sarotherodon melanotheron (black chin Tilapia) has a maximum length of 28 cm. This study describes the analysis of Single Nucleotide Polymorphism in isolated, amplified, and sequenced DNA from two common Tilapia species...

Author(s): Sokenu, B. A., Oguntade, O. R., Ogunkanmi, L. A., Oketoki, T. O., Ukenye, E. A. and Usman, A. B.  

August 2020

Molecular identification of indigenous bacteria isolated from pesticides heavily contaminated soils

This study was carried out to isolate and identify indigenous bacteria associated with pesticides heavily contaminated soil in Sudan. The samples were collected from pesticides contaminated soil in different locations. The predominant bacterial isolates were then purified by subculturing on selective media. Seven isolates were selected based on their capability to degrade pesticides and three of them having the highest...

Author(s): Abd Elaziz Sulieman Ahmed Ishag, Azhari Omer Abdelbagi, Ahmed Mohammed Ali Hammad, Elsiddig Ahmed Elmustafa Elsheikh, Ismail Ahmed Mohammed and Jang-Hyun Hur  

August 2020

Comparative studies between growth regulators and nanoparticles on growth and mitotic index of pea plants under salinity

To our knowledge, no research study has been carried out on the effects of ascorbic acid (ASA), 5-Aminolevulinic acid (ALA) and Nano selenium (N-Se) on the cytological parameters of pea seedlings under salinity stress. Salinity treatment (60 and 120 mM NaCl) was applied. Two concentrations of ASA (50 and 100 ppm), ALA (25 and 50 ppm), and N-Se (10 and 20 ppm), respectively were used individually and in combination with...

Author(s): Hala G. El-Araby, Sahar F.M. El-Hefnawy, Mohammed A. Nassar and Nabil I. Elsheery  

August 2020

Study of the antibody stimulation potentials of lactobacillus spp isolated from palm wine

In this study lactic acid bacteria were investigated for their presence in fresh palm wine and their effects on humoral immunity examined. The bacteria were isolated from fresh palm wine in a tenfold serial dilution. The isolates were purified by repeated subculture on De Man Rogosa Sharpe (MRS) agar and characterized phenotypically and genotypically. The identified Lactobacillus spp. were investigated for their effects...

Author(s): Eze C. O., Gugu T. H., Evurani S. A., Agbo C. P., Okorie J.E and Oraeluno J.N

August 2020

Characterization of crude invertase extracted from Aspergillus species CSA 35

The enzyme invertase is very useful, especially in food industries. Invertase hydrolyzes the disaccharide sucrose into two monosaccharides, glucose and fructose. Invertase was extracted from Aspergillus sp. CSA35, and studied using spectrophotometric methods for enzyme kinetics and determination of other factors affecting enzyme activities such as salt tolerance, pH, temperature and substrate specificity. The invertase...

Author(s): Ohwofasa Aghogho, Aliyu Abubakar Aliyu, Enoch Kwaku Larrey and Ogbodu Ogaga Daniel