DETERMINATION OF ORCANOPHOSPHORUS PESTICIDE RESIDUES IN EGGPLANT AND CAULIFLOWER COLLECTED FROM DIFFERENT MARKETS OF DHAKA

Abstract

Ihe study was conducted to analyze pesticide residues in two common vegetables (eggplant and cauliflower) collected from live different areas (Kawran Bazaar. Mohammadpur Krishi Market. Mirpur- I Bazar, Talcola Bazar and Jatrahari l3azar) of Dhaka city from September 2016 to March 2017. The collected samples were carried to the Pesticide Analytical Laboratory. Entomology Division of Bangladesh Agricultural Research Institute (BARI). Gazipur on the same sampling day. The collected samples were analyzed using Quick, Easy. Cheap. Effective, Rugged and Safe (QuEChERS) extraction technique and Gas Chromatography (GC) coupled with Flame l'hermionized Detector (FTD) for the determination of pesticide residues in 50 samples of eggplant and 50 samples of cauliflower. Among the 50 analyzed samples of eggplant, 9 samples (18% of the total number of samples) contained pesticide residues of Chlorpyrifos. Diazinon and Dimethoate. Among these 9 samples. 8 had residues above the Maximum Residue Limit (MM.) set by European Commission and one had the residue level exactly same as the Maximum Residue Limit (MRI.) set by European Commission. Out of 50 samples of cauliflower, 8 samples (16% of the total no. of samples) contained pesticide residues of Chlorpyrifos. Diazinon and Quinalphos. All the contaminated samples of cauliflower contained residue above Maximum Residue Limit (MRI.). Chiorpyrifos and Diinethoate were detected in most of the contaminated eggplant sample, while Chlorpyrifos and Diazinon were detected mostly in cauliflower samples. •l'his study reflects the overall scenario of pesticide residue remain in eggplant and cauliflower in the local markets of Dhaka city, which will help the consumer to be aware of their health and safety. Key words: Eggplant. Cauliflower, Gas Chromatography. Pesticide residues, QuEChERS Extraction