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Articles by E. Adewole
Total Records ( 2 ) for E. Adewole
  E. Adewole , A. Ojo , T. Oludoro and L.A. Enye
  Background and Objective: The health implications associated with consumption of food crops preserved with pesticides such as diarrhea, food poisons have been a major challenge to health practitioners and the concerned authorities, the objective of the research was to analyze the pesticide residues and compare the contamination rate with Acceptable Dietary Intake (ADI) and Maximum Residue Limit (MRL). Materials and Methods: Phaseolus vulgaris were purchased in two different locations, the samples were powdered using a grinder (Sumeet CM/L 2128945). Fifty grams of powdered flour were soaked in 200 mL of Methanol and the crude extracts were concentrated using a rotary evaporator. The extracts were Characterized using GC-MS and percentage compositions of identified pesticide residues were converted into mg/g as contamination rate and the toxic analysis was done by using the Osiris Online server. Results: In chromatogram A, identified pesticides residue include Dieldrin (96.1 mg g1), Indolizine (67.9 mg g1), permethrin (99.4 mg g1) and compounds identified in chromatogram B include dichlorvos (8.2 mg g1), Diazinon (52.3 mg g1), fenitrothion (17.8 mg g1) and permethrin (122.0 mg g1). These pesticide residues exhibited various toxicological effects, such as; mutagenic, tumorigenic effects. Moreover, the contamination rates of the identified residues were higher than both MRL and ADI. Conclusion: The research work had shown that the two samples had contamination rates higher than both the ADI and MRL, this could pose health hazards to the populace if consumed and it is recommended that the applications of pesticides in foods should be regulated and MRL and ADI should be adhered to.
  E. Adewole , A. Ojo , O. Oludoro , O. T. Ogunmodede and O.I. Awonyemi
  Background and Objective: Preservation of agricultural products remains a hallmark of all farmers as a result, both pesticides and herbicides are being applied during planting and after harvesting with the sole aim of maximizing profits. Research had shown the various degree of toxicity of organochlorine pesticides residues, the objective of the research was to identify the organochlorine pesticide residues, analyze their risk assessment vis-a-vis, Hazard Index (HI), Estimate Dietary Intake (EDI), Target Hazard Quotient (THQ) and compare the results with Acceptable Dietary Intake (ADI), Reference dose standard (Rfd) and Maximum Residue Limit (MRL) and characterized the identified organochlorine pesticides residue for their toxicological properties. Materials and Methods: Phaseolus vulgaris were purchased in a local market in Igbara -Oke, Ondo state Nigeria, the sample was powdered using a grinder (Sumeet CM/L 2128945) and solid phase extraction techniques were employed, the extract was subjected to fractionation into two fractions of aliphatic hydrocarbons and the pesticides. The pesticide extract was subjected to characterization using gas chromatography-mass spectrophotometer. Results: Total 4 organochlorine pesticide residues were identified and the contaminant rates (mg kg–1) were less than 1. Furthermore, EDI values were lower than the ADI, MRL, also, the THQ values were less than 1, an indication that the Phaseolus vulgaris was safe for consumption. Conclusion: The research had shown no toxicity of the Phaseolus vulgaris purchased from the local market and it shows compliance by the local farmers on the application of pesticides to the food crop by obeying the recommended dose.
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