Determination Of The Migration Of Acetaldehyde From Pet Bottles Into Non-Carbonated And Carbonated Mineral Water

The market for PET bottles for mineral water packaging is still increasing. On packaging materials very exacting levels on neutrality of odour and taste are required. In view of PET bottles the migration of acetaldehyde from the bottle wall into the mineral water is of special interest, due to the fact that acetaldehyde is noticeable in low concentrations in mineral water. The aim of this study was to monitor this migration at room temperature from various commercially available PET bottles into carbonated and non-carbonated mineral water. In addition, the correlation between room temperature storage and a short-term test suitable for routine testing (eg 10d at 40 deg C) should be established.