Abstract:
The study was conducted to analyze pesticide residues in three common vegetables (cauliflower, eggplant and yard long bean) collected from five local markets of Mymensingh city during November 2017 to January 2018. 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 Thermionic Detector (FTD) for the determination of pesticide residues in 30 samples of cauliflower, 30 samples of eggplant and 30 samples of yard long bean. Among the 30 analyzed samples of cauliflower, 5 samples (17% of the total number of samples) contained residues of dimethoate, chlorpyrifos and quinalphos, where 1 sample contained multiple residues and 3 samples contained residue above the maximum residue limits (MRLs). Out of 30 samples of eggplant, 5 samples (17% of the total number of samples) contained residues of chlorpyrifos, quinalphos, and dimethoate, where only one sample contained pesticide residues above MRL. On the other hand, among the 30 samples of yard long bean, 3 samples (10% of the total samples) contained residue of quinalphos, of which 2 samples contained pesticide residues above MRL. This study reflects the overall scenario of pesticide residue remain in cauliflower, eggplant and yard long bean collected from local markets of Mymensingh city, which will help the consumer to be aware of their health and safety.
Description:
A Thesis
Submitted to the Department of Entomology
Sher-e-Bangla Agricultural University, Dhaka, in partial
fulfillment of the requirements
for the degree
of
MASTER OF SCIENCE
IN
ENTOMOLOGY
SEMESTER: JANUARY-JUNE, 2017
