Monitoring of pesticide residues in vegetables collected from retail markets of Dhaka district of Bangladesh using QuEChERS Extraction and Gas Chromatography

Abstract

The present study was aimed to detect and quantify major organophosphorus pesticide residues in cauliflower and cucumber collected from different retail markets of Dhaka city, Bangladesh. In this study, a total of 50 vegetable samples (30 samples of cauliflower and 20 samples of cucumber) were analyzed using Quick, Easy, Cheap, Effective, Rugged and Safe (QuEChERS) extraction technique and Gas Chromatography coupled with Flame Thermionic Detector (GC-FTD). Among the 30 analyzed samples of cauliflower, 5 samples (16.7% of the total number of samples) contained residues of chlorpyrifos, quinalphos, acephate and dimethoate, where 4 samples contained multiple pesticide residues. All the contaminated samples of cauliflower contained residues above the EU-MRL. On the other hand, among the 20 analyzed samples of cucumber, only 2 samples (10% of the total number of samples) contained residues of quinalphos and chlorpyrifos at a level being below the EU-MRL. This study reflects the overall scenario of pesticide residues remain in cauliflower and cucumber purchased from different local markets of Dhaka city, which will help the consumer to be aware of their health and safety. The findings derived from this study reveals the public health concern due to the potential of pesticide toxicity in vegetables for the consumers. Therefore, continuous monitoring on the use of pesticides in vegetables should be strengthened. Asian Australas. J. Food Saf. Secur. 2021, 5 (2), 63-70

Determination of pre harvest interval for selected pesticides in hyacinth bean in the agro-climatic conditions of Bangladesh

“…Up until now, a number of research works have been conducted for the determination of pesticide residues in fruits (Prodhan et al, 2021), vegetables (Alam et al, 2023;Tasnim et al, 2022;Parven et al, 2021;Nisha et al, 2021;Hasan et al, 2021;Habib et al, 2021;Nahar et al, 2020;Prodhan et al,2018a;Aktar et al, 2017), sugarcane (Kabir et al, 2007), betel leaf (Prodhan et al, 2023), water (Prodhan et al,2021a) and others matrices (Hoque et al, 2021;Prodhan et al, 2018b;2010;2009). Most of the research works mentioned above have been conducted on the monitoring of pesticide residues in Bangladesh with the marketed samples.…”

Degradation of selected organophosphorus pesticide residues and their pre harvest interval determination in hyacinth bean grown commercially in Bangladesh

“…The residues were detected upto 8 DAS for fenitrothion and 9 DAS for diazinon, respectively. Numerous studies have been conducted so far to determine the pesticide residues in fruits (Prodhan et al, 2021), vegetables (Aktar et al, 2017;Prodhan et al,2018a;Nahar et al, 2020;Parven et al, 2021;Nisha et al, 2021;Hasan et al, 2021;Habib et al, 2021;Tasnim et al, 2022Tasnim et al, , 2022aAlam et al, 2022Alam et al, , 2023, sugarcane (Kabir et al, 2007), betel leaf (Prodhan et al, 2023a), water (Prodhan et al,2021a) and others matrices (Prodhan et al, 2009(Prodhan et al, , 2010(Prodhan et al, , 2018bHoque et al, 2021). Among them, most of the research works cited above have been conducted to monitor pesticide residues in Bangladesh with the marketed samples.…”

Monitoring of pesticide residues in yard long bean collected from Mymensingh district of Bangladesh

“…Gas Chromatography coupled with flame thermionic detector is widely used for the quantification of pesticide residues in vegetables, fruits (Alam et al, 2022;Rahman et al, 2021;Prodhan et al, 2021;Ahmed et al, 2021;, fish and dry fish (Hoque et al, 2021;Prodhan et al, 2018a;2010;2009), sugercane (Kabir et al, 2007), betel leaf and water (Prodhan et al, 2021a;2021b), as they are very much sensitive for the quantification of organophosphorus pesticides. Up until now, several research works have been conducted for the quantification of pesticide residues in vegetables in Bangladesh (Tasnim et al, 2022;Parvin et al, 2021;Hasan et al, 2021;Habib et al, 2021;Nahar et al, 2020;Islam et al, 2021;2019a;Prodhan et al, 2022;2018b;2018c;Hossain et al, 2014;Islam et al, 2014;Kabir et al, 2008;2008a). However, more research work is needed to find out the actual scenario of pesticide residues remain in vegetables in a specific area of Bangladesh.…”