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PubMed1981

Headspace sampling and gas chromatographic determination of styrene migration from food-contact polystyrene cups into beverages and food simulants.

Migration studies using coffee, tea, water, and 8% ethanol were conducted with various types of food-contact polystyrene cups. Study conditions simulated filing and storage at room temperature and hot-filling or pasteurization above 150 degrees F (65.6 degrees C). The quantity of styrene migrating was determined by headspace sampling and gas chromatography (GC). The GC column was 6% Carbowax 20M on Chromosorb 101 with quantitation via a flame ionization detector. Detection limits ranged from 3 to 10 ppb in various liquids. The method and results of the migration studies are presented.

Beverages↗
PubMed1981

[Hygienic-bacteriological examinations in station restaurants (author's transl)].

In four station restaurants (West station, East station, South station, Kelenföld station) microbiological examinations were carried out in conjunction with the inspection of the hygienic conditions. The microflora of the washed and dried drinking glasses and plates as well as the smocks of the kitchen staff were examined. Intestinal bacteria, chromogenic bacteria and pathogenic staphylococci were found in numerous crockery samples. Therefore, it is necessary either to improve the effectiveness of the cleaning process or to prolong the drying of the crockery by heat. Numerous species, such as intestinal bacteria, chromogenic bacteria liable to cause food-decomposition were found in the kitchen staff's smocks, sometimes even in great quantities. To reliably determine the microbiological limit values for smocks and other textiles, a great number of examinations are still necessary. The smocks of the staff handling pre-cooked meals, cold meals or pastries must also be microbiologically clean.--The medical activity in the areas mentioned proved also beneficial to the training in hygiene.

Bacteria↗