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KMID : 0881720100250030203
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Journal of Food Hygiene and Safety
2010 Volume.25 No. 3 p.203 ~ p.208
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Migration Measurement of Volatile Organic Compounds (VOCs) from Polystyrene-made Food Containers into Distilled Water
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Kim Nam-Hoon
Kim Ae-Kyung
Cho Tae-Hee
Park Kyung-Ai
Kwak Jae-Eun
Kim Ji-Young
Kim Il-Young
Chae Young-Zoo
Kim Min-Young
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Abstract
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In this study, the level of migration of 5 kinds of volatile organic compounds (VOCs) (toluene, styrene, ethylbenzene, isopropylbenzene and n-propylbenzene) into distilled water from polystyrene-made food containers was measured using Purge&Trap combined with GC/FID. The contents of the VOCs which have regulatory limits in Korea food code only for material specification were determined under three exposure conditions which were 30 min at 60oC, 30 min at 95oC and actual situation of instant noodle intake. The calibration curve of 5 compounds showed good linearity (r2 = 0.9976~0.9995) within the concentration range of 1~50 ng/mL. The limit of detection (LOD) and limit of quantification (LOQ) were validated at range of 0.041~0.092 and 0.135~0.304 ng/mL, respectively. The average migration contents of 5 compounds were below 5 ng/mL except for styrene. The average contents of styrene were highly detected at 95oC for 30 min exposure (52.71 ng/mL). Under actual condition at instant noodle intake, the average contents of styrene was 17.23 ng/mL. The results demonstrated that the migration rate of VOCs was related to storage temperature and time.
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KEYWORD
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Volatile organic compounds, VOCs, polystyrene
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