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Effect of antioxidants and light stabilisers on silver migration from nanosilver-polyethylene composite packaging films into food simulants.
- Source :
-
Food additives & contaminants. Part A, Chemistry, analysis, control, exposure & risk assessment [Food Addit Contam Part A Chem Anal Control Expo Risk Assess] 2015; Vol. 32 (9), pp. 1561-6. Date of Electronic Publication: 2015 Aug 17. - Publication Year :
- 2015
-
Abstract
- The effect of exposure time, temperature and food simulants, especially additives, on the release of silver from nanosilver-polyethylene composite films to food simulants was studied. Two different type of nanosilver-polyethylene composite films (with or without additives) were chosen to conduct the experiment with the aim of exploring the behaviour of silver migration. It was shown that the migration of silver into 50% ethanol at 40 and 70°C was much less than that into 3% acetic acid. With the increase of exposure time and temperature, the release of silver increased. The migration even continued after a long exposure time (14 days at 20°C, 10 days at 40°C, and 6 days at 70°C respectively). Only about 0.15‰ of silver migrated from composite films with the additives into 3% acetic acid after 6 days of exposure at 70°C, while about 1.3% of silver migrated from composite films that did not contain additives under the same conditions. This could be because the addition of the antioxidants and light stabilisers prevents silver from being oxidised, which is an important way for the release of silver.
Details
- Language :
- English
- ISSN :
- 1944-0057
- Volume :
- 32
- Issue :
- 9
- Database :
- MEDLINE
- Journal :
- Food additives & contaminants. Part A, Chemistry, analysis, control, exposure & risk assessment
- Publication Type :
- Academic Journal
- Accession number :
- 26209184
- Full Text :
- https://doi.org/10.1080/19440049.2015.1075258