Overview
This study measured zinc, copper, iron, cadmium, nickel, and lead in fruit and vegetable samples from a Nigerian local market. The routeable pineapple data are limited but extractable, and the page preserves the source’s liquid-concentration basis.
Key numbers
Source units are mg/L in digested sample solution.
- Orange fruit: Zn 0.36; Cu 0.20; Fe 1.22; Cd <0.01; Ni <0.01; Pb 0.10.
- Pineapple fruit: Zn 0.54; Cu 0.47; Fe 0.80; Cd 0.01; Ni 0.18; Pb 0.20.
- The study lists WHO/FAO comparison limits in the same table: Zn 60.0; Cu 40.0; Fe 0.80; Cd 0.20; Ni 0.14; Pb 0.30.
- The discussion states that cadmium was higher in pineapple fruit at 0.01 mg/L than in orange fruit below 0.01 mg/L.
Methods
Samples were digested and analyzed with a Perkins Elmer AA100 atomic absorption spectrometer.
Implications
The pineapple values are useful as occurrence context but should be treated carefully because the source reports concentrations in digested solution units rather than a conventional mg/kg fresh-weight or dry-weight food basis.
Related evidence
Update history
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