Photoinitiators into Powdered Milk - New Method

Development of a Method to Study the Migration of Six Photoinitiators into Powdered Milk.

The aim of the present work was to develop a rapid multimethod for the analysis of six photoinitiators (PIs) in powdered milk and to study the migration of these PIs from LDPE packaging into powdered milk.

The key parameters of migration phenomena (diffusion and partition coefficients) were determined. The diffusion coefficients at 5 °C ranged between 8.4 × 10−12 (for ITX) and 5.1 × 10−10 (for benzophenone) and those at 40 °C between 5.9 × 10−10 (for ITX) and 6.1 × 10−9 (for Irgacure 184).

The diffusion coefficients of the six model migrants under study increased with temperature and showed a good Arrhenius relationship between 5 and 40 °C.

Source: ASAP J. Agric. Food Chem