Washing bleached palm oil to reduce monochloropropanediols and glycidyl esters

Autor(es)

Silva, Willian Cruzeiro ^[1] ; Santiago, Jessika Karolline ^[1] ; Capristo, Maisa Freitas ^[1] ; Ferrari, Roseli Aparecida ^[2] ; Vicente, Eduardo ^[2] ; Sampaio, Klicia Araujo ^[1] ; Arisseto, Adriana Pavesi ^[1]

Afiliação do(s) autor(es)

^[1] Univ Estadual Campinas, UNICAMP, Sch Food Engn, Rua Monteiro, Lobato 80, BR-13083862 Campinas, SP - Brazil

^[2] Inst Food Technol ITAL, Food Sci & Qual Ctr CCQA, Campinas, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Food Additives and Contaminants Part A-Chemistry Analysis Control Exposure; v. 36, n. 2, p. 244-253, 2019.
• Citações Web of Science: 0

Resumo

The formation of toxic compounds, potentially carcinogenic, during food processing has been considered an important food safety issue. Among them, particular attention has been given to 3-monochloropropane-1,2-diol esters (3-MCPDE), 2-monochloropropane-1,3-diol esters (2-MCPDE) and glycidyl esters (GE), which can be formed during vegetable oil refining, especially palm oil. These substances may pose a health risk to humans due to their toxicity and carcinogenicity. The aim of this study was to investigate the effect of washing bleached palm oil (BPO) with different solvents, and evaluate the reduction of 3-MCPDE, 2-MCPDE and GE as well as assess the quality parameters of the final product. For this purpose, we used two types of washing with different solvents. A single washing was carried out in one step and a double washing in two steps using a solvent gradient. Single washing had a limited reduction in the levels of 3-MCPDE and 2-MCPDE and resulted in an increased level of GE, whereas double washing slightly reduced 3-MCPDE and 2-MCPDE and resulted in a significant reduction of GE levels. The reduction achieved in this study was up to 17.1% for 3-MCPDE, 56.4% for 2-MCPDE and 76.9% for GE levels. The reduction of 3-MCPDE and 2-MCPDE might be due to the removal of part of the ethanol-soluble chlorinated precursors from the oil which suggests that highly lipophilic forms of these substances are present in BPO. The substantial reduction on GE levels might be associated with the removal of the precursors present in the oil such as diacylglycerols. Thus, the washing treatment could be used as a supplementary strategy to reduce processing contaminants from palm oil, especially GEs. (AU)

• Processo FAPESP: 17/26675-5 - Caracterização do óleo de palma para estudos de formação e mitigação de ésteres de 3-MCPD, 2-MCPD e glicidol durante a desodorização
• Beneficiário: Maisa Freitas Capristo
• Modalidade de apoio: Bolsas no Brasil - Programa Capacitação - Treinamento Técnico