Estimation of acetaldehyde in water stored in PET bottles bottled at the supply level of Isfahan

Background and importance of the subject: Polyethylene terephthalate (PET) is a polymer resin of the polyester family used in the production of beverage bottles. Transferring and migrating pet ingredients such as starches to their content will have adverse effects on consumer health. The aim of this study was to measure the amount of acetaldehyde migrated from pet to water content. Method of doing work: A total of 36 bottles of water stored in PET were collected from 12 commercial brands (mineral water and drinking water, each of 6 commercial brands) in Isfahan supply stores. The acetaldehyde mixture was extracted using ortho 2, 3, 4, 5 and 6 Penta fluoro-benzyl-hydroxylamine amine. Then, acetaldehyde was measured by mass spectrometric gas chromatography. The results are compared with the EU standard. Results:Staldehyde was observed in 26 samples of studied waters with a frequency of 72%. The average amount of acetaldehyde in mineral water and drinking water was 6.79 ± 2.28 and 4.53 ± 36.6, respectively. The amount of acetaldehyde obtained in mineral water was higher than that of drinking, and the values in all samples were less than the amount defined in the European standard. Conclusion: In this study, the amount of acetaldehyde migration in mineral water samples was higher than drinking water in packaging. The amount of acetaldehyde measured in this study was lower than the European standard, which could indicate an adverse effect on the health of consumers of this drinking product.

کلیدواژه ها:

migration ، acetaldehyde ، water ، polyethylene terephthalate