Health Research Registry List

Research Registry No : HRID-00338_V3
University Departmental Research : No
Registration Date : 2020-05-26
Title of Research : A study of pesticide (chlorpyrifos) residue analysis in different vegetables collected from different markets
Principle Investigator :
Co-authors : Khin Phyu Phyu, Khine Khine Lwin, Phyo Wai Zin, Aye Min Maw, Seng Raw
Field of Research : Others
Publication Source :
Year of Publication : -
URL of Publication : -
Presentation Source : 48th Myanmar Health Research Congress. 2020; P77
Placement of Presentation : DMR
Year of Presentation : 2020
Abstract : Vegetables are important components of the human diet. Pesticides are chemical compounds that are used to kill pests including insects, rodents, fungi and weeds for better yield and quality of crops. Various human health related concerns are associated with excessive exposure to pesticides and their residues. In Myanmar tomatoes, cabbage and cauliflowers are common for production and domestic consumption. According to report of Ministry of agriculture, livestock and irrigation, chlorpyrifos is one of the most commonly used pesticides in agricultural sector. Therefore, this study was conducted to investigate the possible contamination of Chlorpyrifos residues in vegetables sold in the different markets of Yangon. It was a cross-sectional descriptive study. Total 24 vegetable samples (cauliflower, cabbage and tomatoes) were collected from four different shops of Thiri-Mingalar market and Kandawgyi park farmer market. Pesticide residue analysis was determined by using Gas Chromatography Mass Spectrometry (GC-MS) at Department of Medical Research and the method for determination of pesticide was validated. For the sample extraction, Bond Elut Original QuChERS Method Extraction Kit was used. Chromatogram for showing peak of standard chlorpyrifos was at retention time 19.2 minutes. In this study, all the vegetable samples contained no detectable level of chlorpyifos residue. However, it contained other compounds like hexadecanoic acid and alpha-Tocopherol in vegetable samples. These compounds are saturated fatty acid and vitamin E commonly found in plants and vegetables. Although this study showed that there was no detectable amount of chlorpyrifos residues in vegetable samples from different markets of Yangon, research on pesticide residues monitoring in vegetables should be continued more for consumer safety and export.
IRB/PRC/ERC Approval Date : 2018-10-15
Placement of IRB/PRC/ERC : UOPH
IRB/PRC/ERC Approval Letter/Document : 26052020064633Dr.MNDA.pdf
Pre-existing Registration ID : -
Pre-existing Name of Organization : -
Pre-existing Website : no