Additives in plastics are capable of migrating from the packaging materials into the foodstuffs, thereby presenting a source of contamination and a potential health risk to the consumer. The migration from packaging materials into foodstuffs is first of all regulated by examining the amounts of global and specific migrated components. Besides, there is worldwide still a need for practical methods for measuring and monitoring migration from polymers, especially for the testing of migration into fatty foodstuffs. Therefore, these studies were undertaken to investigate the safety status of domestic plastic packaging materials with respect to migration. Another objective of this study was to examine the applicability of ethanol as an alternative fatty food simulant substituting for olive oil and n-heptane. The evaporation residues for various domestic plastic samples determined as described in Korean food laws were in the level from 4.3 to 14.5 mg/l, which were much lower than the limit value of 150 mg/l. The global migration values into 95 % ethanol showed to be comparable to those into n-heptane, while the olive oil migration values were comparably higher than those into ethanol or n-heptane and moreover they were not reproducible. The kinetic migration behavior of additives in polyolefin samples into 95% ethanol showed a Fickian diffusion process. The results of these studies on global migration and kinetic testings demonstrate that the ethanol could be successfully substitute for the olive oil and n-heptane as an alternative fatty food simulant, at least in contact with polyolefins.

세정수로서의 전해산화수 효능을 증대시키기 위하여 다양한 식품첨가제를 첨가하여 제조한 이하의 세정수에 대한 냉각특성, 살균 및 갈변억제 효과를 조사하였다. 식품첨가제의 첨가비율은 NaCl 0.85%(w/v), ethanol 0.5%(v/v), 레몬과즙 0.5%(v/v), 유자과즙 0.5%(v/v), polysorbate 80은 1 ppm으로 결정하였다. 미생물 사멸효과는 초기 5.63 CFU/mL인 Escherichia coli KCTC 1039