Assessment of Microbial and Heavy Metal Contamination of Natural Sheep Casings from Different Geographic Regions
Marker-corpus ingest from raw/markdown/FM_12071571/FM_12071571.md.
Evidence fitness
Food-matrix occurrence source for heavy metals in salted natural sheep casings. The values are potentially routeable to processed-meat or meat-related pages, but the matrix is a casing ingredient rather than a finished sausage; retain that row-fit distinction during routing.
Key numbers
- The study tested 35 salted natural sheep-casing samples from eight countries.
- Total mean concentrations were Pb 0.077 +/- 0.045 mg/kg, As 0.036 +/- 0.029 mg/kg, and Cd 0.009 +/- 0.008 mg/kg.
- Mercury was below the LOQ in all samples; the source table reports Hg <0.001 mg/kg.
- Reported LOQs were 0.001 mg/kg for Cd and Hg and 0.01 mg/kg for As and Pb.
- The total observed ranges were Pb 0.017-0.17 mg/kg, Cd <0.001-0.026 mg/kg, As <0.01-0.13 mg/kg, and Hg <0.001 mg/kg.
Methods
The source reports ICP-MS after microwave digestion of homogenized casing samples with nitric acid and hydrogen peroxide, followed by hydrochloric acid addition and dilution. Trace-element concentrations were expressed in mg/kg on a dry-matter basis.
Implications
Use this as source-scoped processed-meat/casing occurrence evidence. Do not silently merge the casing matrix with finished sausage or meat-puree benchmark rows without a row-fit note.
Wiki pages this source may touch
Verification notes
- Manifest DOI was malformed by Markdown extraction; the DOI was corrected from the paper citation.
- Table 2 contains an apparent typo in the China arsenic range (
0.14-0.094); use the narrative/table maxima of 0.13 mg/kg as the upper value unless a later audit resolves the table typo from the PDF. - Matrix scope is recorded conservatively as
meat; the paper’s actual matrix is salted natural sheep casing used in processed meat production. - Brand firewall: no sampled consumer brands are reproduced.
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.