Nkwocha et al. 2021 - metals in raw cashew nuts from Enugu State
Nkwocha and coauthors measured heavy metals, antinutrients, physicochemical properties, and PAHs in raw cashew nuts from Enugu State, Nigeria. The source is routeable to cashews because it reports numeric Cd, Pb, and Hg concentrations in the edible nut matrix. Values are summary-level, not sample-level distributions.
Key numbers
- Raw cashew nuts contained Cd 0.0703 +/- 0.0096 ppm, Pb 0.0773 +/- 0.0047 ppm, and Hg 0.8013 +/- 0.0785 ppm.
- The same summary reports PAHs and antinutrients, but those are context only for Heavy Metal Index routing.
- The PDF describes frying in vegetable oil for 10 minutes to remove seeds from pods before drying, dehulling, grinding, and analysis.
Methods (brief)
The PDF states that Hg, Pb, and Cd were analyzed with a Varian AA240 atomic absorption spectrophotometer after sample preparation. The reporting basis is ppm for the cashew nut matrix.
Implications
Certification: summary-level cashew occurrence evidence for Cd, Pb, and total Hg. Courses: example of processed sample preparation needing basis notes. App: supports a Nigeria/Enugu context flag for cashew nuts.
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Verification notes
The PDF provides numeric heavy-metal values and author/journal/DOI metadata. It does not provide sample-level values or a clear market sample count, so this should not be treated as a distribution-ready source without additional extraction.
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.