UPSI Digital Repository (UDRep)
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UPSI Digital Repository (UDRep)
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| Abstract : Perpustakaan Tuanku Bainun |
| The profile of glyphosate (GLY) residues in maize grains sold in the Federal Capital Territory Abuja (FCT), Nigeria, was assessed. Twenty-six maize grain samples of yellow and white morphotypes were collected from some selected markets within the FCT, Abuja. Analytical methods on the pulverized maize grains included solvent extraction using (acetonitrile/water (55:45), clean-up of pesticide residues as described by the Association of Official Analytical Chemists Quick Easy Cheap Efficient Rugged and Safe method (AOAC-QuEChERS) and quantification done by high performance liquid chromatography (HPLC) with UV detector. The results showed that the mean concentration of glyphosate in the maize grains ranged below the detection limit (BDL) to 24.30±0.002 mg/kg with a mean glyphosate concentration of 3.474 mg/kg was detected. Three samples representing 11.54% of the samples collected from Gwagwalada and Nyanya markets violated the World Health Organization (WHO)/Food Agricultural Organization (FAO) Codex Alimentarius Commission standards of 5.0 mg/kg values recorded for Acceptable Daily Intake (ADI) for all samples were within an acceptable limit of 0.1 mg/kg and it was also observed that all values recorded for Estimated Daily Intake (EDI) were lower than ADI which suggest that the maize grains is toxicologically safe for the consumer. The values obtained for Health risk index indicated that they are all |
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