Overview
This preprint measured trace elements in canned tomato paste and canned pineapple marketed in Algeria. It is routeable for canned tomato and canned fruit context because it reports Cd exceedance counts and measured trace-element concentrations in canned foods.
Key numbers
- The study analyzed 52 canned food samples: tomato paste and pineapple.
- The measured elements were Fe, Zn, Cu, Cd, and Pb.
- Approximately 29% of analyzed samples did not meet regulatory limits, according to the authors.
- Eleven samples (21%) had Cd at or above 0.05 mg/kg.
- Fe, Zn, Cu, and Pb concentrations were statistically below regulatory limits in the authors’ analysis.
- The authors report positive correlations for Zn and Cd contents, and between both elements and food/package contact time.
Methods
Samples were mineralized by wet acid digestion and analyzed by atomic absorption spectroscopy. The paper focuses on migration from metallic packaging into canned foods.
Implications
The source supports canned tomato paste and canned pineapple occurrence context for Cd, Pb, Zn, Cu, and Fe. Because it is a preprint, its values should be weighted below peer-reviewed market surveys until publication status is confirmed.
Related evidence
- Tomato Paste
- Pineapple
- Canned tomatoes
- Tomato Paste — REDIRECT (Cat 7 sub-variant of Canned foods, general)
- Canned Tomatoes — REDIRECT (Cat 7 sub-variant of Canned foods, general)
- Canned Vegetables — REDIRECT (Cat 7 sub-variant of Canned foods, general)
- Cadmium
- Lead
- Zinc
- Copper
- Iron
Update history
No substantive edit history is available in this build. The full commit record is available in git.