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Suitability Of Pet Bottles For Food Contact Applications.
Satish, A. and Naveena, M. S. and Girish, T. K. and Leela Bai, S. (2012) Suitability Of Pet Bottles For Food Contact Applications. Indian Food Packer. pp. 97-103. ISSN 0019-4808
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Abstract
Polyethylene terephthalate or PET is used as packaging material for different food products, beverages, edible oils, mineral water etc. It is lightweight, usually transparent; though available in a range of colours. The present study was investigated to evaluate the suitability of PET bottles for food contact applications along with their shrinkage behavior at high processing temperature. PET bottles and preforms were evaluated for their suitability in food packaging by overall migration of additives using different food simulants such as distilled water for aqueous/non acidic foods (pH ~ 5) without fat, 50% ethanol for alcoholic beverages, 3% acetic acid for aqueous, acidic food (pH:5:5) without fat at 40°C/10 days and n-Heptane for edible fatty foods at 38°C/0.5 as per Bureau of Indian Standards IS - 9845-1998 (2004). Overall migration values of PET bottles were well below the safety limits of 10 mg/dm2 and 60 ppm as per IS:12252-2004. Shrinkage behaviour was also studied for water bottle and juice bottle using distilled water and 3% acetic acid as simulants at 60°C, 70°C, 80°C, 90°C and 100°C for 2 hr., and it was observed that shrinkage of water bottle was upto 4.4% at 80°C and 25.8% at 100°C whereas juice bottles showed shrinkage upto 3.9% at 90°C and 12.7% at 100°C. This low shrinkage values in juice bottles is due to their construction design and higher thickness. Further investigation is needed to assess the toxic effects of some specific components of PET bottles like antimony, acetaldehyde, terephthalic acid and ethylene glycol migrating from PET to food.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Polyethylene Terephthalate (PET), Preforms, Additives, Migration, Shrinkage |
| Subjects: | 600 Technology > 08 Food technology > 06 Preservation and Storage > 06 Packaging |
| Divisions: | Food Packaging Technology |
| Depositing User: | Food Sci. & Technol. Information Services |
| Date Deposited: | 26 Mar 2013 03:59 |
| Last Modified: | 18 Nov 2016 10:24 |
| URI: | http://ir.cftri.res.in/id/eprint/11158 |
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