83B-5 |
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D.-H. JEON1, G. Y. Park2, I.-S. Kwak1, C.-W. Lee1, H.-J. Park2, and K.-H. Lee1. (1) Food Packaging Division, Korea Food and Drug Administration (KFDA), 5 Nokbun-Dong, Eunpyung-Ku, Seoul, 122-704, South Korea, (2) Graduate school of Biotechnology, Korea University, SungBuk-Gu Anam 5 Ga, Lab. of packaging engineering (Lab. 307), Seoul, 136-701, South Korea The effects of g-irradiation on residues and migration levels of antioxidants, tris(2,4-di-tert-butylphenyl)phosphite(Irgafos 168), octadecyl b-(2,6-di-tert-butylphenol)propionate(Irganox 1076) and their degradation products of low density polyethylene(LDPE) packaging film were investigated in the range of 0 to 200 kGy. The residues of Irgafos 168 were not detected after 5 kGy and that of Irganox 1076 at 0, 5, 10, 30, 60, 100 and 200 kGy were 1126, 607, 730, 243, 126, 59 and 34 mg/kg, respectively. The migration levels of antioxidants from LDPE into food simulants, water, 4% acetic acid, 20% ethanol and olive oil were decreased with increasing g-irradiation. The decomposition products, 1,3-di-tert-butylbenzene and 2,4-di-tert-butylphenol, of Irgafos 168 were identified with GC/MSD and the residues were increased with increasing g-irradiation in LDPE. However the decomposition products of Irganox 1076 could not be identified by same method.
Session 83B, Food Packaging: Applications of edible coatings, antimicrobial films, and sensors in food packaging
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