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- Title
台灣食用油3 -單氯丙二醇酯含量調查.
- Authors
李昱宗; 朱燕華
- Abstract
3-monochloro-1,2-propanediol esters (3-MCPDEs) are substances produced during the oil refining process. 3-MCPDEs could be hydrolyzed by human intestinal lipase to produce 3-monochloro-1, 2-propanediol (3-MCPD), which has been listed as the Class 2B suspected carcinogen by International Agency for Research on Cancer (IARC). Previous studies have shown that the presence of glycidol can overestimate the amount of 3- MCPDEs content. This study established a 3-MCPDEs analytical method by reducing glycidol or its esterification products. This method was used to assess the amount of 3-MCPDEs in 87 commercial edible oils in Taiwan market. The results showed that after treatment with sulfuric acid/methanol for 30 minutes, the 3-MCPD produced from glycidol was significantly reduced. An average of 1.2% glycidol was converted to 3-MCPD in this study. The method was validated and was consistent with the validation regulation of food chemistry. The quantitative limit for this method is 100 μg/kg. According to 3-MCPD equivalent level detected in oil samples, palm oil had the highest concentration (9,647 μg/kg), followed by grape seed oil (4,224 μg/kg), rice bran oil (3,695 μg/kg), olive oil (2,994 μg/kg), sunflower oil (1,088 μg/kg), refined olive oil (977 μg/kg), sesame oil (841 μg/kg), soybean oil (413 μg/kg), canola oil (439 μg/kg), bitter camellia oil (167 μg/kg) and extra virgin olive oil (not detected). In conclusion, we established a method for MCPDEs determination by modifying sample preparation procedure to avoid overestimation of 3-MCPDEs. We also conducted a 3-MCPD investigation to oil sample in the market. These data can be provided as basis on risk assessment and residue limits management for government authority.
- Publication
Taiwanese Journal of Agricultural Chemistry & Food Science, 2018, Vol 56, Issue 1/2, p52
- ISSN
1605-2471
- Publication type
Article
- DOI
10.6578/TJACFS.201804_56(1&2).0006