Abstract:

The migration of benzophenone (BP) and 1-hydroxycyclohexyl phenyl ketone (HCH) from food wrapper tomilk powder and Tenax at different high temperatures was investigated. To avoid the interference of unwanted peaks frommilk powder, gas chromatography was carried out under the following conditions: the initial column temperature was 80 ℃for 3 min, increased to 150 ℃ at 20 ℃/min, held for 10 min, and then to 290 ℃ at 30 ℃/min, held for 10 min. As thetemperature increased, larger amounts of BP and HCH were migrated faster and the time required to reach the equilibriumbecame shorter. The infiltration capacity of the food wrapper had an important impact on the migration. The use of paperwith stronger infiltration capacity should be avoided for the high-fat food packaged under high temperature conditions.Compared with Tenax, whole milk powder, which showed better adsorption capacity and more complex composition, wasmore suitable for the migration study.

Key words: benzophenone;1-hydroxycyclohexyl phenyl ketone, migration, food wrapper