PL
Przeprowadzono analizę 16 podstawowych wielopierścieniowych węglowodorów aromatycznych (WWA) w naparach herbat owocowych i ziołowych. WW A w badanych naparach występowały na poziomie 54,4-743,6 ng/dm3. Najwięcej BaP stwierdzono w herbacie czarnej (13,9 ng/dm3).
EN
Polycyclic aromatic hydrocarbons (PAHs) are fused-ring aromatic compounds formed in both natural and manmade processes and are found widely distributed throughout the human environment. PAHs occur as contaminants in different food categories and beverages including water, vegetables, fruit, cereals, oils and fats, barbecued and smoked meat. The sources of PAHs in food are predominantly from environmental pollution and food processing. In vegetables, the presence of PAHs originates mainly by deposition of air pollution particulates on their surfaces. The present study was carried out to determine levels of PAHs in tea infusion samples prepared from herbs and fruits. The method is based on the liquid-liquid extraction and cleaned up by florisil cartridge. Quantification and detection are carried out by GC MS. The levels of total PAHs was varied from 54,5 ng/dm3 (hibiscus tea) to 743,6 ng/dm3 (green tea). The highest level of BaP was found in black tea (13,9 ng/dm3).