Studies of Migration of styrene monomer from Polystyrene Packaging into the Food Simulant
محل انتشار: ششمین کنگره بین المللی مهندسی شیمی
سال انتشار: 1388
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 1,805
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شناسه ملی سند علمی:
ICHEC06_045
تاریخ نمایه سازی: 1 مهر 1388
چکیده مقاله:
Abstract: Migration of styrene monomer from polystyrene (PS) dishes were conducted during this research at temperatures of 5, 20, and 40 0C. According to the Food and Drug Administration (FDA) regulations, these experiments were performed in contact with 10%ethanol as a food simulant for the oil in water (o/w) emulsions. The dishes were filled in each defined temperatures and stored for 35 days. In a relatively close intervals (1, 7, 15, 24, and 35 days) the amount of migration which occured, was determined by means of Head Space Gas Chromatography Mass Spectrometry (HS-GC-MS). By increasing storage time and temperature, the amount of migration was increased and in all times and temperatures styrene monomer was detected. In addition, a mathematical model based on the Fick’s second law was validated to predict migration from packaging material into the 10% ethanol. The resulted diffusion coefficients were 3.6*10-18 , 4.9*10-18, and 6*10-18 (m2/s) in 5 ,20 and 40 0C respectively.
کلیدواژه ها:
نویسندگان
Zahra amirshaghaghi
Department of Food Science, Technology and Engineering, University of Tehran, Karaj, Tehran, Iran;
Zahra emamdjomeh
Department of Food Science, Technology and Engineering, University of Tehran, Karaj, Tehran, Iran;
Abdolrasul Oromiehie
Iran Polymer and petrochemical Institute, ۱۵ km tehran- karaj. Pajoohesh, Tehran