Iron migration from undamaged and dented juice tinplate cans

authors	Verissimo, MIS; Silva, RPO; Gomes, MTSR
nationality	International
journal	JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
author keywords	iron migration; tinplate cans; pineapple juice; flame atomic absorption spectroscopy
keywords	ATOMIC-ABSORPTION-SPECTROMETRY; CANNED FOODS; TIN; ASSOCIATION; CANCER; METAL; RISK
abstract	BACKGROUND: Iron migration fromtinplate cans to pineapple drinkwas studied over time using flame atomic absorption spectroscopy, taking into consideration storage temperature, sell-by date and can condition (dented/undamaged). An organoleptic test, at the sell-by date, was also performed. RESULT: Analysis of iron in drinks from tinplate cans, glass and polyethylene terephthalate (PET) bottles was performed up until the sell-by date. For undamaged canned drinks stored at room temperature, iron was found to remain constant at 0.23 +/- 0.01mgL(-1), fromthe 24th day until 1 year after production. Iron found in glass and PET bottles also remained constant until the sell-by date, at 0.15 +/- 0.04 and 0.12 +/- 0.04mgL(-1), respectively. However, migration of iron fromdented canswas found to be significant. Twelve months after production, iron content in dented cans, stored at room temperature (22 +/- C) and in a refrigerator chamber (4 degrees C) was 14.4 +/- 1.0 and 5.5 +/- 0.4mg L-1, respectively. CONCLUSION: Results showed that for a 35 kg child the intake of three damaged canned drinks may contribute to more than 50% of the iron provisionalmaximum tolerance daily intake. (C) 2015 Society of Chemical Industry
publisher	WILEY-BLACKWELL
issn	0022-5142
year published	2016
volume	96
issue	9
beginning page	3042
ending page	3046
digital object identifier (doi)	10.1002/jsfa.7474
web of science category	Agriculture, Multidisciplinary; Chemistry, Applied; Food Science & Technology
subject category	Agriculture; Chemistry; Food Science & Technology
unique article identifier	WOS:000377203000014