Abdullahi 2019 - Heavy metals in fruits and vegetables in Nigeria

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.

Wiki pages this source may touch

• Pineapple
• Fresh Fruit
• Cadmium
• Nickel
• Lead

Verification notes

• Source identity checked against DOI 10.31142/ijtsrd20298 and the downloaded PDF.
• The table’s element order is taken from the paper’s immediately preceding standards list: Zn, Cu, Fe, Cd, Ni, Pb.

Page history

The five most recent substantive edits to this page. The full version history lives in git; when DOI minting comes online (see schema docs), each entry below will also link to a version-pinned DataCite DOI.