Mohammed et al. 2021 — Copper, cadmium, and lead in noodles from Salah Al-din markets

Mohammed and colleagues measured mycotoxins, fungi, and selected heavy metals in ten noodle types collected from markets in Salah Al-din Governorate, Iraq. The heavy-metal occurrence portion reports copper and cadmium concentration ranges and states that lead was below 0.1 ppm in all samples. The paper reports total-element Cu, Cd, and Pb only; it does not report arsenic, mercury, chromium, or metal speciation.

Key numbers

The extracted text shows captions for Figure 4, Figure 5, and Figure 6, but the figure graphics did not yield readable sample-level values. No per-sample copper, cadmium, or lead table was present in the extracted text.

Methods (brief)

Ten noodle types were collected from Salah Al-din Governorate markets with three replicates. The heavy-metal method says 10 duplicate noodle samples were dried in an electric oven, ashed in a muffle furnace at 600 C to stable weight, taken up in 5 mL of 5% HNO3, filtered through Whatman No. 1, and analyzed for Cd, Cu, and Pb by atomic absorption spectrophotometry using a Shimadzo-6200 instrument. The source reports total elements only and does not give LOD or LOQ values in the extracted text.

Implications

This source contributes Iraq-market noodle occurrence ranges for total Cu, total Cd, and total Pb. It is useful for routing to broad noodle and wheat-based pasta product pages, but it is summary-only for metals because the extracted figure graphics do not provide a readable sample-level table. It is not suitable for iAs, MeHg, or Cr-VI routing because those analytes were not measured.

Verification notes

• PDF text extracted with pdftotext -layout; the title page, DOI, abstract, sampling description, heavy-metal method, and Section 3.3 were readable.
• DOI verified from the page header as 10.1088/1742-6596/1879/2/022006; DOI, raw handle MFK_mohammed2021, and cite-key checks found no existing source page before creation.
• All metal numbers in Key numbers were checked against the abstract and Section 3.3. Units are preserved as ppm; no conversion to mg/kg or ppb was performed.
• Speciation: Cu, Cd, and Pb are reported as total elements. The paper does not report arsenic, mercury, chromium, or metal speciation.
• Brand firewall: the source names noodle flavor/type descriptors in the sampling section, but the occurrence page does not attach any product or brand name to a contamination value.
• Frontmatter product and ingredient slugs were checked against docs/gpt-collaboration/taxonomy-snapshot.md; no new slug was invented.

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.