Papers by Adeniyi Adeleye
Deleted Journal, May 22, 2024
These days, public health policy is primarily concerned with the global challenge of food safety.... more These days, public health policy is primarily concerned with the global challenge of food safety. Hawked-cooked foods (HCF) play a vital role in people's everyday food alternatives, as their ever-increasing busy schedules take away the opportunity to eat homemade foods. This study aimed at analyzing the bacteriological quality of HCF sold in Dutse ultra-modern market. This study observed and analyzed the bacteriological quality of the nine (9) most popular foods sold by hawkers in the research region. All samples were analyzed using standard microbiological methods. The total viable bacterial counts in the samples for the reciprocal of dilution 10 5 ranged between 3.2 10 6 and 1.40 10 7 CFU/g, while dilution 10 7 ranged from 1.50 10 8 to 1.10 10 9 CFU/g. A total of twelve bacteria that are of public health importance were isolated and identified from the assayed ready-to-eat foods. All the sampled ready-to-eat foods in this study recorded bacteriological contaminants, which can potentially constitute public health issues. Seven of these bacteria are pathogenic; Bacillus cereus, Staphylococcus aureus, Escherichia coli, Salmonella, Vibro cholerae, Streptococcus pneumoniae, and Klebsiella sp. Prior to food sampling, most food hawkers interrogated lack western education, demonstrating the low degree of hygiene they practice in the preparation of the hawked foods. Therefore, in order to prevent impending public health catastrophes (foodborne illnesses) that can be brought on by consuming HCF, it is advised that food producers who hawk ready-to-eat foods adopt hygienic practice in the preparation and serving to improve food safety.
World Journal of Environmental Research, Dec 21, 2023
The aim of this study was to assess the environmental pollutants present in the cobwebs found in ... more The aim of this study was to assess the environmental pollutants present in the cobwebs found in selected lecture rooms; Mathematics lecture room (MTH), Chemistry lecture room (CHM), Biology lecture room (BIO) and Environmental Science lecture room (EMT) in the Faculty of Science, Federal University Dutse. Bacterial pollutants coupled with Arsenic (As) Lead (Pb) in the sampled cobwebs were isolated and identified using standard procedures. One-way Analysis of variance was used to determine the variation in the concentrations of Pb and As in the sampled cobwebs. Staphylococcus aureus (28.1%), Bacillus sp. (37.5%), Streptococcus sp. (18.8%), and Streptobacillus sp. (15.6%) were detected in all the cobwebs samples. MTH 4 had the highest Pb concentration (1.2800 mg/kg) while CHM 3 had the lowest (0.470 mg/kg) Pb concentration. CHM 3 and BIO 3 had very low concentrations of Pb, which were significantly different from each other (p˂0.05). This study has revealed that spider cobwebs can be an effective bio-indicator in determining indoor air quality.
Innovare journal of science, Feb 24, 2024
Introduction: Consumption of ready-to-drink beverages is a norm in the world over. However, the p... more Introduction: Consumption of ready-to-drink beverages is a norm in the world over. However, the presence of total coliform in any beverage renders it unfit for human consumption. Objectives: Due to non-existence of scientific data on the safety status of the ready-to-drink Zobo which is a popular local beverage, we did conduct this study to assess the bacteriological quality of the lots sold to consumers on the campus of Federal University Dutse (FUD), Nigeria. Methods: Purposive sampling was employed to sample nine (9) locally packaged Zobo in three (3) different outlets; FUD Bakery (BAK) where three (3) were assayed (BAKA, BAKB, and BAKC), FUD Backside (BS) where three (3) samples were assayed (BSA, BSB, and BSC), and Morocco Girls' hostel (MGH) three (3) samples were assayed (MGHA, MGHB, and MGHC). Standard methods were used to assay the sampled Zobo. Results: Results obtained indicate that samples from MGH (8.0×10⁴ CFU/mL) had the lowest total viable count (TVC), while samples from BAK (2.8×10⁷ CFU/mL) recorded the highest TVC. However, samples assayed from MGH recorded no total coliform count. The number of bacterial colonies recorded in BAKA and BAKB was not significantly different from each other (p>0.05). However, the number of bacterial colonies recorded from MGHA was significantly different from those obtained in MGHB and MGHC (p<0.05). Conclusion: Due to the results obtained, we can conclude that Zobo samples assayed in the sampling points were not fit for human consumption during the conduct of our study.
Journal CleanWAS, Jan 18, 2023
The purity of breathable air in an indoor environment is one of the factors that determines how h... more The purity of breathable air in an indoor environment is one of the factors that determines how healthy the inhabitants are. In order to evaluate the mycological indoor air quality of a few chosen private hospitals in Dutse metropolitan, this study was carried out. To choose the three (3) private hospitals that agreed to the study's conduct, a purposive sampling technique was used. The settle plate method was adopted to isolate fungi in the morning, afternoon, and evening using eighty one (81) sterile sabouraud dextrose agar (SDA) plates. Following that, established microbiological techniques were used to identify the fungal isolates. The indoor environment of the private hospitals were extensively contaminated with fungal aerosols, according to the results, with mean fungal loads in the morning (4680 CFU/m 3), afternoon (3566 CFU/m 3), and evening (3016.33 CFU/m 3). However, the mean fungal load obtained in Dr. Bashir hospital (4966 CFU/m 3) was significantly (p< 0.05) different from other private hospitals while the mean fungal loads obtained across all the private hospitals were not significantly (p> 0.05)different from each other. Penicillium spp. (23.46%), Aspergillus flavus (7.41%), Mucor spp. (17.28%), Rhizopus spp. (13.58%) and Aspergillus niger (23.46%) were isolated across the private hospital indoor environment. The findings in this study indicate that fungal aerosols were able to accumulate in the examined indoor environment of the hospitals regardless of the sampling intervals, suggesting that they may have the ability to act as a reservoir of fungal infections. Therefore, it is advised that safety precautions should be taken in order to lessen fungal contamination in the hospitals' indoor environment.
Science heritage journal, Dec 31, 2022
This study assessed the effect of cattle dung (CD) enhanced with fungi isolated from spent engine... more This study assessed the effect of cattle dung (CD) enhanced with fungi isolated from spent engine oil (SEO)polluted soil on Lead (Pb) decontamination. Twenty plastic bottles containing 20 g of soil each were prepared with varying weights of CD and volumes of fungal isolates in potato dextrose broth each. The mixture was incubated at room temperature. It was a 4 x 2 factorial experiment. Atomic absorption spectrophotometer was employed to determine Pb decontamination of the bio-enhanced fungal consortium in the 2nd, 4th and 6th week of incubation. At the 2nd week, there was no significant (p> 0.05) difference between the addition of 10 g of CD (0.1750 mg/kg) and 15 g of CD (0.1750 mg/kg). At the 6th week, the lowest concentration (0.0400 mg/kg) of Pb was recorded with the addition of 20 g of CD and inoculation with fungal isolate (15 mL). Fungi bio-enhanced with CD influenced decontamination of Pb in SEO-contaminated soils in this study.
Environmental Contaminants Reviews, Feb 1, 2023
Chromium (Cr) is a major pollutant found in tannery effluent is detrimental to human health and t... more Chromium (Cr) is a major pollutant found in tannery effluent is detrimental to human health and the ecosystem. The present research aimed to remove Cr from tannery wastewater using corn-cobs as adsorbent. The tannery wastewater was collected from one of the tannery industries in Kano, Nigeria. APHA 2012 method was employed in establishing the physicochemical properties of the sampled wastewater. Using the batch method, effect of adsorbent dosage, pH and contact time on the adsorption of Cr by corn-cob was determined. Results show that the percentage removal of Cr from the wastewater ranging from 67% to 87% was obtained by using the adsorbent. However, the contact time (0, 10 and 20 minutes) of the adsorbent had significant (p<0.05) difference on the concentrations (65.60, 37.65 and 25.38 mg/L) of Cr removed from the sampled tannery wastewater respectively. In conclusion, corn-cob has shown be an efficient adsorbent in the removal of Cr from wastewater.
Through the use of a controlled greenhouse experiment, this research analyzes the function that p... more Through the use of a controlled greenhouse experiment, this research analyzes the function that plant-microbe interactions play in the promotion of sustainable agriculture. In this study, we used a randomized complete block design to investigate the influence that arbuscular mycorrhizal fungi (AMF) and plant growth-promoting rhizobacteria (PGPR) have on the development of wheat (Triticum aestivum) and soybeans (Glycine max). The results showed that there was a considerable improvement in the parameters of plant growth, notably in the group that was treated with AMF. This improvement included an increase in shoot height, root length, and biomass. While this was going on, indices of soil health showed that the soil that had been treated with AMF had a higher microbial diversity and it contained more nutrients. These results highlight the possibility of using certain plant-microbe interactions, in particular with AMF, to promote both the development of plants and the health of the soil in sustainable agriculture. The research underscores the relevance of these relationships in terms of minimizing dependency on synthetic inputs, lessening the effect on the environment, and supporting agricultural systems that are resilient.
The present study was conducted to assess the physicochemical and bacteriological quality of wate... more The present study was conducted to assess the physicochemical and bacteriological quality of water sampled from different boreholes on the campus of Federal University Dutse. Water samples were collected from six (6) different boreholes. Physicochemical parameters; pH, Electrical conductivity (EC) and temperature were measured in-situ. pH, EC and temperature ranged from 6.53¬7.80, 422.0¬690µ/cm and 31.0¬33.0ºC respectively. Turbidity, total hardness and nitrite (NO 2) were found to be in the range of 0.01¬41.2NTU, 51.3¬102.6mg/L and 0.001¬0.06mg/L respectively. Bacteriological analysis also revealed the presence of E. coli in four (4) of the assessed boreholes. Upon comparison with water quality standards of World Health Organisation (WHO) and Nigeria Standard for Drinking Water Quality (NSDWQ), it was found that some of the parameters were above the permissible standards for potable water that is fit for human consumption. It is therefore recommended that all stakeholders entrusted with water quality management should be actively involved in ensuring that all public serving boreholes are subjected to appropriate water quality tests with a view to ascertaining its quality so as to adequately advise on its consumption status. Water quality inspectors should be sent on regular basis to the tertiary institutions in the state for routine checkup .
UMYU Journal of Microbiology Research (UJMR)
Biogas production is a promising renewable energy source that can reduce greenhouse gas emissions... more Biogas production is a promising renewable energy source that can reduce greenhouse gas emissions and improve environmental health. Substrate pre-treatment methods, including physical, chemical, and biological methods can increase biogas yields and reduce operational costs. This review assessed the advancements in substrate pre-treatment methods for biogas production, while exploring potential benefits and drawbacks of various techniques. Physical pre-treatment methods, such as chopping, grinding, steam explosion, and high-pressure homogenization, have been found to increase biogas yield despite requiring high energy consumption and expensive equipment. Chemical pre-treatment methods involving acid and alkaline hydrolysis have been effective, but can be costly and generate hazardous wastes. The biological pre-treatment methods utilized microorganisms or enzymes, have advantages of higher biogas yields, shorter process time, and eco-friendliness. Future research can focus on developi...
Journal of Environmental Issues and Climate Change
Pollution of groundwater by slaughterhouse effluent has been documented to have negative health a... more Pollution of groundwater by slaughterhouse effluent has been documented to have negative health and environmental consequences. Tudun-Wada and Kawo residential suburbs of Kaduna city are known to house slaughterhouses where effluent is mostly discharged indiscriminately into the environment. Eighteen water samples were obtained from six existing hang dug wells representing six sampling points with varying distances in the study area. Group A (K1 and T1) is located within the slaughterhouses, Group B (K2 and T2) is located 60-130 meters away from the slaughterhouses and Group C (K3 and T3) is 80-200 meters away from the slaughterhouses. Standardized methods were employed to analyze temperature, pH, total dissolved solids (TDS), total suspended solids (TSS), dissolved oxygen (DO), bacterial oxygen demand (BOD), chemical oxygen demand (COD), electrical conductivity (EC), nitrate, sulphate, total coliform and faecal coliform of the sampled water. Results indicated that the mean pH value...
Journal of Environmental Issues and Climate Change
The study was conducted to isolate and identify possible bacterial contaminants on the gate passe... more The study was conducted to isolate and identify possible bacterial contaminants on the gate passes issued to motorists in the three (3) major gates leading to Federal University Dutse. Swab stick method was employed to sample possible bacterial contaminants from seventy (70) gate passes. Sampling was done at the end of the daily activities to maximize the chances of isolating bacteria that might be present thereon. The swab sticks labelled S1 to S70, were instantaneously taken to the Microbiology laboratory with a view to conducting bacteriological analysis by means of customary microbiological methods. Plate colony count method was adopted to compute the number of bacteria present on the sampled gate passes. 'Results generated on the total viable count show that S31 sampled from gate two had the highest load (1.68 × 10-2 CFU/mL) while S43 sampled from the same gate recorded the lowest load (0.34 × 10-3 CFU/mL). Four (4) bacteria; Escherichia coli, Staphylococcus aureus, Klebsie...
Stamford Journal of Microbiology
Suya is a street-hawked food that offers a source of the nourishing menu for its consumers. In th... more Suya is a street-hawked food that offers a source of the nourishing menu for its consumers. In this study, the quality and safety of street hawked ready-to-eat suya in Dutse urban was assessed. Twenty skewers of suya were sampled from four sampling points (Hakimi Street, Yelwawa, Takuradua and Mobile base) where it is mostly sold. At each sampling point, five skewers of suya were obtained randomly from the suya vendors in sterile containers that were labeled A to T. Samples were immediately taken to the laboratory where standard methods were employed for the bacteriological assay. The total viable count (TVC) showed that the sample G (1.96 × 107 CFU/g) collected from Yelwawa had the highest load while sample P (8.60 × 106 CFU/g) collected from Takuradua recorded the lowest. Bacillus spp., Staphylococcus spp., Escherichia coli and Streptococcus spp. were detected in the samples. Across the sampling points, percentage of occurrence of bacteria isolated was highest for Escherichia coli...
World Journal of Environmental Research, May 31, 2022
The study assessed the quality of water obtainable in six (6) storage tanks present in the male a... more The study assessed the quality of water obtainable in six (6) storage tanks present in the male and female hostels on the Federal University Dutse campus. Physicochemical analyses; temperature, pH, turbidity, electrical conductivity, nitrate, and phosphate were conducted using standard methods. Presumptive, confirmed, and completed tests were employed to determine total and fecal coliforms from the water samples using the most probable number (MPN) technique. Generated results from the parameters were compared with the allowable standards of the Nigerian Standard for Drinking Water Quality (NSDWQ) and the World Health Organisation (WHO). Results obtained on the physicochemical status of the water indicate that all measured parameters conformed to NSDWQ and WHO permissible standards. The results obtained in this study also show the presence of bacteria in the water present in the storage tanks which may constitute a health risk amongst students drinking it. It is therefore recommended that the water pumped and stored in these storage tanks should be adequately treated.
Indonesian Journal of Innovation and Applied Sciences (IJIAS), 2022
This research aimed to assess the mycological indoor air quality of the grains’ grinding mills si... more This research aimed to assess the mycological indoor air quality of the grains’ grinding mills situated in the Dutse ultra-modern market. A simple random sampling method was employed to select nine (9) shops where grains are milled. Settle plate method through the use of fifty-four (54) sterile sabouraud dextrose agar (SDA) plates was adopted for fungal isolation in the morning, afternoon and evening. Fungal isolates were subsequently identified using standardized methods. Results obtained indicate that depending on the sampling period and operation status of the grinding mills, all the sampling points examined were heavily contaminated with total mean fungal load in the morning (4084 CFU/m3), evening (3867 CFU/m3), and afternoon (3818 CFU/m3). However, the mean fungal load obtained in the morning from shop C (6426 CFU/m3) was significantly different from other shops (p< 0.05) while the mean fungal loads obtained across all the shops in the afternoon and evening were not signific...
Indonesian Journal of Social and Environmental Issues (IJSEI), 2021
The interface between surface water and groundwater is becoming more complex owing to the effects... more The interface between surface water and groundwater is becoming more complex owing to the effects of climate change and anthropogenic activities these days. In this study, the physicochemical; pH, color, electrical conductivity, total dissolved solids, and turbidity while bacteriological parameters; total and fecal coliform of water samples from River Gashua and its surrounding wells in Gashua local government area of Yobe State were assessed. All the physicochemical parameters were analyzed using water quality standards. Fecal and total coliforms were assayed using the filter membrane technique. The results obtained from the physicochemical parameters of Boreholes (BH1, BH2, and BH3) and hand pump wells (HPW1, HPW2, and HPW3) are within the World Health Organization (WHO) standards. However, the river (R) water sample was found to have a high concentration in total dissolved solids, turbidity, and color than permissible standards. Bacteriological analysis revealed the presence of t...
This study was conducted to assess bacterial degradation of total petroleum hydrocarbon (TPH) and... more This study was conducted to assess bacterial degradation of total petroleum hydrocarbon (TPH) and polycyclic aromatic hydrocarbon (PAHs) contents of spent engine oil (SEO) contaminated soil through the employment of Pseudomonas aeruginosa and Alcaligenes faecalis isolated from spent engine oil polluted soil from Dutse mechanic village, Nigeria. About 1.5 kg of autoclaved soil was deliberately contaminated with SEO at three levels. The soil was then supplemented with processed compost, powdered cocoa pod husk (CPH) and powdered cow dung (CD). Successively, the soil was bio-augmented with bacterial co-culture (150 ml). TPH and PAHs were estimated at the commencement, 5 and 10 week of the study. Factorial experiment laid out in a completely randomized design (CRD) was adopted. Results indicate that all the biostimulants employed did have significant effects on bacterial degradation of TPH and PAHs (P<0.05). Compost facilitated the most TPH reductions (756 and 250 mg\kg) on 5 and 10%...
Nigerian Journal of Basic and Applied Sciences, 2021
Water from borehole source can be contaminated due to indiscriminate waste disposal. This pilot s... more Water from borehole source can be contaminated due to indiscriminate waste disposal. This pilot study was conducted to assess the bacteriological quality of water from five (5) hand-pump-fitted borehole sources present in Sabon Gari quarters in Ringim Local Government Area of Jigawa State. Presumptive, confirmed and completed tests were employed to determine total and faecal coliforms from the water samples using most probable number (MPN) technique. Bacterial isolates were identified by standard microbiologicalmethods. Results obtained indicate that all the water samples across all the dilution strengths tested recorded substantial growth of total coliforms at 37.3°C while faecal coliforms were observed at 44°C after incubation for 48 h. Using the MPN table, the five water samples assayed recorded 50 MPN/100mL, 14 MPN/100mL, 3 MPN/100mL, 5 MPN/100mL and 1 MPN/100mL. Results were also positive for gas and acid production in all samples collected characteristic of presence of E. coli...
The current research examined the level of groundwater contamination in Sharada industrial area o... more The current research examined the level of groundwater contamination in Sharada industrial area of Kano, Nigeria. Groundwater samples were collected, examined and analyzed for water quality parameters (physicochemical and heavy metals) and compared with permissible water quality standards (World Health Organisation (WHO); Nigeria Standard for Drinking Water Quality (NSDWQ); and National Agency for Food, Drug and Control (NAFDAC). A random sampling method was employed in collecting the samples from three (3) different locations of Sharada phase I, II and III. Heavy metals were determined using Atomic Absorption Spectrophotometer and titration was employed to determine physicochemical parameters while pH, electrical conductivity (EC) and temperature were measured in-situ. Results obtained from the analysis of the heavy metal in the sampled hand dug wells revealed mean concentration ranges of Cd(0.10-0.20 mg/l), Cr(0.0370-0.0925 mg/L), Pb(0.0650-0.1305 mg/L) and Zn(0.0280-0.0420 mg/L) ...
Agro-Science, 2021
The study assessed the removal of total petroleum hydrocarbon (TPH) and polyaromatic hydrocarbons... more The study assessed the removal of total petroleum hydrocarbon (TPH) and polyaromatic hydrocarbons (PAHs) from spent engine oil (SEO) contaminated soil through bioenhancement of bacteria isolated from SEO polluted soil. Sterilized soil was subjected to a three level of SEO contamination before the addition of sterilized biostimulants including powdered cow dung (CD), powdered cocoa pod husk (CPH) and compost (made from fresh CPH and CD). Bacterial inoculum being Staphylococcus aureus and Bacillus cereus co-culture (150 mL) was added to the mixture in polyethylene bags. It was a factorial experiment that was laid out in a completely randomized design (CRD). The TPH and PAHs were estimated in the first day, fifth week and the tenth week that the room incubation lasted. Results generated from the influence of biostimulants on TPH and PAHs degradation potential of the bacterial co-culture showed that degradation of the hydrocarbon contents was significantly enhanced (p < 0.05). At the...
FUDMA JOURNAL OF SCIENCES, 2020
The harmful effects of spent engine oil on aquatic and terrestrial ecosystems have been well esta... more The harmful effects of spent engine oil on aquatic and terrestrial ecosystems have been well established in literature. This study was conducted to assess the bio stimulatory influence of amendments; compost and inorganic fertilizer on bacterial degradation of spent engine oil contaminated soil. 500 g of unpolluted soil was collected and artificially contaminated with 5, 10 and 15% (v/w) spent engine oil. The experiment was laid out in a completely randomized design. Each amendment (50 g) was subsequently mixed thoroughly with the spent engine oil contaminated soil at varying levels except nine experimental bottles used as control. Incubation study was carried out and lasted for four weeks. Estimation of total petroleum hydrocarbon, pH, electrical conductivity, temperature and bacterial population density was done within two weeks interval during the incubation study. Results obtained indicate that compost significantly enhanced total petroleum hydrocarbon reduction by 87% while in...
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Papers by Adeniyi Adeleye