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Determination of Carbamate and Organophosphorus Pesticides in Vegetable Samples and the Efficiency of Gamma-Radiation in Their Removal.

Authors :
Muhammed Alamgir Zaman Chowdhury
Jahan, Iffat
Karim, Nurul
Mohammad Khorshed Alam
Rahman, Mohammad Abdur
Mohammed Moniruzzaman
Siew Hua Gan
Abu Naieum Muhammad Fakhruddin
Source :
BioMed Research International. 2014, Vol. 2014, p1-9. 9p.
Publication Year :
2014

Abstract

In the present study, the residual pesticide levels were determined in eggplants (Solanummelongena) (n = 16), purchased from four different markets in Dhaka, Bangladesh. The carbamate and organophosphorus pesticide residual levels were determined by high performance liquid chromatography (HPLC), and the efficiency of gamma radiation on pesticide removal in three different types of vegetables was also studied. Many (50%) of the samples contained pesticides, and three samples had residual levels above the maximum residue levels determined by the World Health Organisation. Three carbamates (carbaryl, carbofuran, and pirimicarb) and six organophosphates (phenthoate, diazinon, parathion, dimethoate, phosphamidon, and pirimiphos-methyl) were detected in eggplant samples; the highest carbofuran level detected was 1.86 mg/kg, while phenthoate was detected at 0.311 mg/kg. Gamma radiation decreased pesticide levels proportionately with increasing radiation doses. Diazinon, chlorpyrifos, and phosphamidon were reduced by 40-48%, 35-43%, and 30-45%, respectively, when a radiation strength of 0.5 kGy was utilized. However, when the radiation dose was increased to 1.0 kGy, the levels of the pesticides were reduced to 85-90%, 80-91%, and 90-95%, respectively. In summary, our study revealed that pesticide residues are present at high amounts in vegetable samples and that gamma radiation at 1.0 kGy can remove 80-95% of some pesticides. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
23146133
Volume :
2014
Database :
Academic Search Index
Journal :
BioMed Research International
Publication Type :
Academic Journal
Accession number :
100578053
Full Text :
https://doi.org/10.1155/2014/145159