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3-Monochloropropane-1,2-diol (3-MCPD) esters and glycidyl esters (GE) are process-induced contaminants formed primarily during the high-temperature refining of edible vegetable oils. Increasing regulatory scrutiny and toxicological concerns have made their control a critical challenge for the edible oil industry. This study examines the chemical pathways responsible for the formation of 3-MCPD and glycidyl esters during key refining stages, including degumming, bleaching, and deodorization. The influence of process variables such as temperature, residence time, chloride sources, diacylglycerol content, and the nature of bleaching earth is discussed. Analytical approaches used for the detection and quantification of these contaminants, including gas chromatography and liquid chromatography–mass spectrometry techniques, are briefly reviewed. Furthermore, practical mitigation strategies such as optimization of deodorization conditions, selection of low-chloride raw materials, modification of bleaching practices, and pre-treatment techniques for reducing precursor compounds are evaluated. The findings highlight that preventive process control is more effective than post-refining removal strategies. This paper provides a comprehensive overview of formation mechanisms and industrially feasible mitigation approaches, contributing to improved refining practices and enhanced food safety compliance.
"Formation and Mitigation of 3-MCPD and Glycidyl Esters during Edible Oil Refining", International Journal for Research Trends and Innovation (www.ijrti.org), ISSN:2456-3315, Vol.11, Issue 3, page no.a609-a615, March-2026, Available :http://www.ijrti.org/papers/IJRTI2603076.pdf
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2456-3315 | IMPACT FACTOR: 8.14 Calculated By Google Scholar| ESTD YEAR: 2016
An International Scholarly Open Access Journal, Peer-Reviewed, Refereed Journal Impact Factor 8.14 Calculate by Google Scholar and Semantic Scholar | AI-Powered Research Tool, Multidisciplinary, Monthly, Multilanguage Journal Indexing in All Major Database & Metadata, Citation Generator