Daily Intake of DEHP in Tainted Food
In this video, the professor describes the methodology for calculating the daily intake of DEHP, a type of phthalate, in tainted food. The daily intake was calculated based on various factors, including the concentration of DEHP in the tainted food, the amount and frequency of consumption, exposure duration, and body weight.
The urine samples were pretreated and extracted using solid-phase extraction and then analyzed using ultraperformance liquid chromatography coupled with tandem mass spectrometry (UPLC-MS/MS). The estimated mean daily intake of DEHP was higher in children, particularly those who consumed tainted nutritional supplements regularly. The daily intake of tainted fruit jams and nutritional supplements was uncertain, while tea drinks had a relatively lower level of DEHP. The take-home message emphasized the importance of understanding the purpose, scope, and methodology of sampling, measuring, and analyzing contaminants in food and taking appropriate actions based on the results.
Review Questions:
- What factors were considered when calculating the daily intake of DEHP?
- How were the urine samples pretreated and extracted before analysis?
Sustainable Development in Health and Ecology
Sustainable Development in Health and Ecology
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