Abstract:

This study aimed to evaluate the effect of nanosilver on the migration of two antioxidants (Irganox1076 and
Irgafos168) from nanosilver-polyethylene plastic packaging into food simulants. Two polyethylene films containing two
antioxidants (Irganox1076 and Irgafos168) with or without nanosilver were soaked in the food simulants, hexane or 95%
aqueous ethanol (V/V), at 20, 40 or 70 ℃ for migration. The spiked recoveries of two antioxidants from the food simulants
ranged from 79.3% to 108.0% with relative standard deviations (RSDs) varying from 0.7% to 5.3%. In addition, the
migration of two antioxidants increased gradually with the increases in temperature and time in both food simulants till the
migration balance. The migration was greater in hexane than in 95% (V/V) ethanol. The migration of the polyethylene film
with nanosilver was lower than that without nanosilver. Thus, the addition of nanosilver plastic hindered the migration of
antioxidants into food simulants.

Key words: nanosilver, antioxidants, food simulant, migration, high performance liquid chromatography (HPLC)