Electronic Journal of Polish Agricultural Universities (EJPAU) founded by all Polish Agriculture Universities presents original papers and review articles relevant to all aspects of agricultural sciences. It is target for persons working both in science and industry,regulatory agencies or teaching in agricultural sector. Covered by IFIS Publishing (Food Science and Technology Abstracts), ELSEVIER Science - Food Science and Technology Program, CAS USA (Chemical Abstracts), CABI Publishing UK and ALPSP (Association of Learned and Professional Society Publisher - full membership). Presented in the Master List of Thomson ISI.

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Melski K. , Zabielski J. , Kubera H. 2003. MODEL STUDY ON INTENSIFIED MIGRATION OF VOLATILE SUBSTANCES FROM FOOD CONTACTING PLASTIC MATERIALS DURING REPEATED MICROWAVING, EJPAU 6(1), #09.
Available Online: http://www.ejpau.media.pl/volume6/issue1/food/abs-09.html

ABSTRACT

This model experiment was aimed towards determination of the effect of repeated microwaving on migration of volatile substances to food simulating model solutions from packages commonly used in food industry. For this purpose 5 most common plastic packages were selected: white round shaped polypropylene container for ready to eat courses, its polystyrene cover, yellow polypropylene cup of 175 cm³ capacity, white polystyrene cup of 135 cm³ capacity and polystyrene/polyethylene foil; 3% acetic acid, 15% ethanol and rectified olive oil were taken as food simulating solvents. Prior to microwaving, the samples were stored for 10 days in 5°C. Using the GC/MS combined with static head space technique, 26 substances migrating into food simulants were identified after storage and prior to microwave heating. Cumulative exposure time to microwaving ranged from 2 till 30 min. It was found that repeated microwaving increased by 400% global migration of volatile substances from ye

Key words: migration, food packages, microwaving

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