Naslov
Aluminium Content of Fruit Juices and Tea Beverages

Autori
Šeruga, Marijan ; Laslavić, Belita

Izvornik
Deutsche Lebensmittel-Rundschau (0012-0413) 102 (2006), 9; 435-441

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Aluminium content; fruit juices; tea beverages

Sažetak
The aluminium (Al) concentration in different brands of fruit juices and tea beverages packaged in different containers (Al cans, glass and PET bottles and Tetra Brick) was measured by the Zeeman graphite furnace atomic absorption spectrophotometry (ZGFAAS) method. The results show that the Al concentration varies significantly with the brand of fruit juices or tea beverages and the type of packaging containers. The samples of fruit juices or tea beverages packaged in Al cans have a significantly higher Al content than the same brand bottled in others containers. There was not significant difference in Al content between the samples packed in glass and PET bottles and Tetra Brick packaging. The results indicate that some Al is taken up by the fruit juices or tea beverages in Al cans during the storage time, presumably through the dissolution of Al from the can wall, due to some defects in the protective lacquer layer. The mean Al concentration of all fruit juices samples investigated was 0.435 mg Al/l and that of tea beverage 2.085 mg Al/l. The evaluated daily intake of Al (0.218 mg Al/d) possible through the consumption of fruit juices was practically negligible in relation to both the total dietary Al intake and the tolerable daily Al intake. Tea beverages could be a significant source of dietary Al intake in relation to the contribution from others beverages. However, the possible evaluated daily Al intake (1.043 mg Al/d) through consumption of tea beverages is significantly below the calculated tolerable daily Al inatake (TDI) value, calculated from FAO/WHO report. Thus, it appers that the dietary Al intake from investigated tea beverages, and especially from drinking fruit juices, should not be a cause for concern with regard to possible Al toxicity for the human body.

Izvorni jezik
Engleski

Znanstvena područja
Prehrambena tehnologija

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