Organochlorine pesticide residues in dried cocoa beans obtained from cocoa stores at Ondo and Ile-Ife, Southwestern Nigeria
| Autor: | Abolanle S. Adekunle, O.A. Akindolani, MB Sosan, John Adekunle Oyedele Oyekunle |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
0301 basic medicine
Maximum Residue Limit Health Toxicology and Mutagenesis Nigeria 010501 environmental sciences Toxicology Organochlorine 01 natural sciences Cocoa beans World health Article Crop 03 medical and health sciences chemistry.chemical_compound lcsh:RA1190-1270 Health safety Pesticides 0105 earth and related environmental sciences lcsh:Toxicology. Poisons ComputingMethodologies_COMPUTERGRAPHICS business.industry Ondo Organochlorine pesticide Pesticide 030104 developmental biology chemistry Agriculture Environmental science Endrin business Ile-Ife |
| Zdroj: | Toxicology Reports Toxicology Reports, Vol 4, Iss, Pp 151-159 (2017) |
| ISSN: | 2214-7500 |
| DOI: | 10.1016/j.toxrep.2017.03.001 |
| Popis: | Graphical abstract Highlights • Organochlorine pesticides (OCPs) were determined in dried cocoa beans in Nigeria. • Qualitative and quantitative evaluation of the extracted OCPs was done using GC-ECD. • Levels of OCPs in cocoa beans from Ondo range from ND to 82.17 ± 54.53 ng/g. • The OCPs levels in cocoa beans from Ondo are higher than that from Ile-Ife town. • OCPs in the cocoa beans were within the Maximum Residue Limit (MRLs) set by WHO. Levels of organochlorine pesticides (OCPs) were determined in dried cocoa beans obtained from cocoa produce stores at Ondo and Ile-Ife, Southwestern Nigeria. Cocoa beans samples were sun dried to a constant weight, pulverized and soxhlet extracted with dichloromethane to obtain the OCPs. Qualitative identification and quantitative evaluation of the extracted OCPs after clean-up on silica gel were accomplished with the aid of a Gas Chromatography coupled with an Electron Capture Detector (GC-ECD). Levels of OCPs in cocoa beans from Ondo had a mean range of ND (p, p’-DDE) to 82.17 ± 54.53 ng/g (p, p’-DDT) were higher than the OCPs levels in cocoa beans from Ile-Ife with a mean range of 0.37 ± 0.63 ng/g (Endrin) to 57.76 ± 81.48 ng/g (p, p’-DDT). The higher levels of OCPs detected in the cocoa beans from Ondo could be an indication of higher volume of OCPs application by cocoa farmers in Ondo and its environs since cocoa plantations were more concentrated than Ile-Ife environs. Levels of OCPs determined in the cocoa beans were within the Maximum Residue Limit (MRLs) for OCPs set by the World Health Organization/Food and Agricultural Organization. The study established the presence of OCPs in an important crop of Nigeria. Hence, there is the need to keep monitoring ecotoxicological chemical substances in agricultural food products of Nigeria so as to take steps that ensure health safety of end users. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|