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KMID : 0377619760310040335
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Korean Jungang Medical Journal
1976 Volume.31 No. 4 p.335 ~ p.343
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A Hygienic Aspect of Thermoplastic Resins as Food Packaging Materials
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權肅杓/Kwon, Sook Pyo
鄭勇/金順兒/沈吉淳/Chung Yong/Kim, Soon-A./Shim, Kia Soon
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Abstract
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The thermoplastic resins using food packaging materials and blood bag were determined in kinds of materials, soluble heavy metals and phthalates from December 1, 1974 to October 30, 1975:
1) The food packaging materials, were polyvinyl chloride(PVC), poly ethylene (PE), poly propylene(PP),polyvinylidene chloride(PVDC) and the laminates. The blood bag´s-was, PVC:
.2) PE and PP of food packaging materials and PVC of blood bag were not determined in lead and, cadmium compounds by eluting with-saline and 4% acetic acid solution. But PVC of food materials were eluted that lead were determined at 0.0-1.5;mg/g by saline for 4 days, 28-92mg/g by 4%acetic acid for 1 day, and, cadmium, were determined at 0:.077mg/g by saline and 0.0-0.308mg/g by 4% acetic acid. They were under the regulation comparing with below 100 ppm of legal solutes for the food packaging materials.
3) Phthalates as plasticizer of resins were measured in the range of 0.00 0.44mg/g and 0.032-0.073mg/g in saline solutesat 30°C for I day from PVC and blood bag, respectively and 3.30mg/g and, 0.0-9.23mg/g at 60°C for 1 day in 4% acetic acid solutes.
4) Considering of food content preservation against light by the films the tasted propylene transmitted all range of ultraviolet ray, the oriented propylene transmitted 50% of ultraviolet ray and PVC banned under 270mm of ultraviolet ray.
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