ABSTRACT Proper management strategies for huge amounts of crop residue generated from agricultural farms need to be obtained. Composting is a good strategy in rice straw management. Traditional methods of composting rice straw are limited in timely production of good quality compost due to its recalcitrant nature. There is need to develop and formulate microbial starter cultures that are adapted to local climatic conditions to ensure efficiency in using microorganisms in composting. This st...
ABSTRACT Information on the potency of many African medicinal plants against microorganisms is scanty, and in the current wave of antimicrobial resistance against chemotherapeutic drugs, there is need to search for plants that could be having phytochemicals that are resistance-free, affordable and with fewer and less side effects. The objective of this study was to investigate the phytochemical properties with respect to antimicrobial effects of the crude and pure components from extracts o...
ABSTRACT Crickets are drawing interest as sustainable source of protein for food and feed worldwide. However, there is little information on microbial quality of edible crickets thus the need for a profound insight into their safety. The objective of the study was to determine the microbial load of two edible cricket species Scapsipedus marginatus and Gryllus bimaculatus and to evaluate the efficiency of different processing methods (boiling, sun-drying, freeze-drying, snap freezing and deep...
ABSTRACT Microbial contamination in laboratories and hospitals is becoming serious problem worldwide and characterization of such contaminants offer hope for treating some hospital and laboratory acquired infections (LAI). Microbial contaminants on benches, floors, media and in equipment can be influenced by temperature, humidity, nutrient media used in the laboratories as well as storage conditions of the media. Therefore there is need to determine the microbial sources, isolate and identify...
ABSTRACT Aflatoxins are fungal metabolites which are toxic, mutagenic and carcinogenic and thus cause undesirable effects on animal and human health when ingested with feed or foodstuffs. Aflatoxin producing fungi may occur in certain food products in form of spores, and thus when conditions are favourable, the fungi germinate and may produce aflatoxin in varied amounts. Ingestion of higher dose of aflatoxin (Codex Commission upper limit is 10ppb), may result in aflatoxicosis which manifests ...
ABSTRACT Petroleum hydrocarbons (PHCs) are common site contaminants, but they are not generally regulated as hazardous wastes. TPH refers not only to analytical results, but also to environmental and health properties of PHCs. Biodegradation by natural populations of microorganisms represents one of the primary mechanisms by which petroleum and other hydrocarbon pollutants can be removed from the environment and is cheaper than other remediation technologies. The environmental implication as...
ABSTRACT The study compared and predicted the remediation rates of microbes using the rate removal of Total Petroleum Hydrocarbon Content (TPHC) of a crude oil polluted land. This was done using field experimental data generated from the soil of the Federal University of Technology Owerri Research Farm in Imo State, Nigeria. The soil was artificially polluted in the laboratory with crude oil - Bonny light - with specific gravity of 0.8323. Petroleum contaminant present in the soil was 230mg ...
ABSTRACT Aflatoxins are secondary metabolites produced by several species of Aspergillus fungi, which occur in food crops due to exposure of pre-harvest and post-harvest conditions. Complementary foods are considered an important source of energy, protein and fat for children aged between 6-24 months. The study was carried out to to determine levels of aflatoxins contamination of complementary flour composite and to explore the association between post-harvest handling practices and aflatoxi...
ABSTRACT A total of eight soil samples were collected from different sites within FUOYE environment and were analyzed to determine the presence of antibiotic producing bacteria, fungi and actinomycete Using nutrient agar, sabauraud dextrose agar and glycerol yeast extract agar as culture media. Seven bacteria: Escherichia coli, Bacillus spp, Pseudomonas spp, Azomonas spp, Gluconobacter spp, Micrococcus spp, and Staphylococcus aureus; five fungi: Rhizopus spp, Mucor spp, Rhodotorula spp, ...
ABSTRACT The present study was conducted in the Laboratory of Plant Pathology at the College of Agricultural Studies.Sudan University of Science and Technology- Shambat. To study the effect of water solvent extracts of Root, Brak and Leave of Mesquite tree ( Prosopis juliflora) and Fungicide REVUS top® on Wilt Branch disease , which is considerate one of most important disease that infectous Mango trees (Mangifera indica), and caausing significant reduction in yield. In present study the pa...
ABSTRACT This research study is designed to determine the microbial count of Chicken Droppings and Ground Palm kernel shell in which the chicken droppings is used as inoculum on Ground Palm Kernel Shell at Ratio 2: l in which the inoculum size is half of the Ground Palm Kernel Shell. Pollution of the environment due to oil production can be reduced through this study because is aimed at examining the microorganism responsible for the biodegradation that can be achieved in Palm kernel she...
ABSTRACT Magnetically recoverable Pd/Fe3O4-catalyzed Hiyama cross-coupling reactions of 6-Bromo-5H-benzo[a]phenothiazin-5-one, 6-Bromo-5H-naphtho[2,1-b]pyrido[2,3-e][1,4]oxazin-5-one and 11-Amino-6-bromo-9-thio-5H-naphtho[2,1-b]pyrimido[5,4-e][1,4]oxazin-5-one (as intermediates) with 2-(Dimethylsilyl)pyridine and Dimethyl(2-thienyl)silanol were investigated. The intermediates were prepared by the reactions of 2-Aminothiophenol, 2-Aminopyridin-3-ol and 4,5-Diamino-6-hydroxylpyrimidin-2-t...
ABSTRACT Ximenia Americana is considered one of medicinal plant which are widely used especially in West of Sudan. This plant has been studied in this research, which is collected from Nuba Mountains and Babanusa. In part I of the present study, crude extracts of different parts of plant was investigated for their biological activity. Preliminary investigations were carried out to select the plant extracts of the highest activity for further investigation. The extracts were screened for phyt...
ABSTRAC Fusarium wilt of tomato is considered as one of the most important diseases of the worldwide. The present investigation was undertaken under laboratory of Plant protection Department, College of Agricultural Studies, Sudan University of Science and Technology, to study the effect of aqueous leaves extracts of Eucalyptus camaldulensis, Mint, Sweet basil plants and fungicide Revus top on growth of the fungi Fusarium oxysporum f. sp. Lycopersici causal agent of wilt in tomato. Three conc...
ABSTRACT Food poisoning with mycotoxins produced by fungi is a global food safety issue. The consumption of mycotoxin-contaminated foods is responsible for several foodborne diseases outbreak worldwide. While peanuts are an important crop with both economic and nutritional significance in tropical and subtropical regions, their vulnerability to aflatoxin contamination, for example, makes them unsuitable for human consumption. This study aimed at assessing the aflatoxin contamination of local...