Skip to Content
Merck
  • An improved UPLC method for the detection of undeclared horse meat addition by using myoglobin as molecular marker.

An improved UPLC method for the detection of undeclared horse meat addition by using myoglobin as molecular marker.

Food chemistry (2014-09-23)
Antonella M A Di Giuseppe, Nicola Giarretta, Martina Lippert, Valeria Severino, Antimo Di Maro
ABSTRACT

In 2013, following the scandal of the presence of undeclared horse meat in various processed beef products across the Europe, several researches have been undertaken for the safety of consumer health. In this framework, an improved UPLC separation method has been developed to detect the presence of horse myoglobin in raw meat samples. The separation of both horse and beef myoglobins was achieved in only seven minutes. The methodology was improved by preparing mixtures with different composition percentages of horse and beef meat. By using myoglobin as marker, low amounts (0.50mg/0.50g, w/w; ∼0.1%) of horse meat can be detected and quantified in minced raw meat samples with high reproducibility and sensitivity, thus offering a valid alternative to conventional PCR techniques.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
Sodium hydroxide-16O solution, 20 wt. % in H216O, 99.9 atom % 16O
Supelco
Nitrite ion standard solution, for ion-selective electrodes, 0.1 M NO2-
Sigma-Aldrich
Sodium nitrite, 99.999% trace metals basis
Sigma-Aldrich
Sodium nitrite, anhydrous, Redi-Dri, ReagentPlus®, ≥99.0%
Sigma-Aldrich
Sodium nitrite, ReagentPlus®, ≥99.0%
Supelco
Sodium nitrite, analytical standard
Sigma-Aldrich
Sodium nitrite, ACS reagent, ≥97.0%
Supelco
Glycine, analytical standard, for nitrogen determination according to Kjeldahl method
Sigma-Aldrich
Glycine, 99%, FCC
Supelco
Glycine, Pharmaceutical Secondary Standard; Certified Reference Material
Sigma-Aldrich
Glycine, from non-animal source, meets EP, JP, USP testing specifications, suitable for cell culture, ≥98.5%
Sigma-Aldrich
Glycine, suitable for electrophoresis, ≥99%
Sigma-Aldrich
Glycine, ReagentPlus®, ≥99% (HPLC)
Sigma-Aldrich
Glycine, meets analytical specification of Ph. Eur., BP, USP, 99-101% (based on anhydrous substance)
Sigma-Aldrich
Glycine, tested according to Ph. Eur.
Sigma-Aldrich
Glycine, BioUltra, Molecular Biology, ≥99.0% (NT)
Sigma-Aldrich
Glycine, ACS reagent, ≥98.5%
Sigma-Aldrich
3-Ethyl-2,4-pentanedione, mixture of tautomers, 98%
Sigma-Aldrich
Glycine, puriss. p.a., reag. Ph. Eur., buffer substance, 99.7-101% (calc. to the dried substance)
SAFC
Glycine
Supelco
Glycine, certified reference material, TraceCERT®, Manufactured by: Sigma-Aldrich Production GmbH, Switzerland
Sigma-Aldrich
Sodium hydroxide solution, 50% in H2O
Sigma-Aldrich
Sodium hydroxide, pellets, semiconductor grade, 99.99% trace metals basis
Sigma-Aldrich
Sodium hydroxide, reagent grade, ≥98%, pellets (anhydrous)
Sigma-Aldrich
Sodium hydroxide solution, 5.0 M
Sigma-Aldrich
Sodium hydroxide, ACS reagent, ≥97.0%, pellets
Sigma-Aldrich
Sodium hydroxide, reagent grade, 97%, flakes
Sigma-Aldrich
Sodium hydroxide, anhydrous, free-flowing, Redi-Dri, reagent grade, ≥98%, pellets
Sigma-Aldrich
Sodium hydroxide, beads, 16-60 mesh, reagent grade, 97%
Sigma-Aldrich
Sodium hydroxide, reagent grade, 97%, powder