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Application of Enzyme Digestion and Deconjugation Followed by Quick, Easy, Cheap, Effective, Rugged, Safe Extraction and Liquid Chromatography-Tandem Mass Spectrometry Methodology To Determine Ractopamine Residue in Pork.
- Source :
-
Journal of food protection [J Food Prot] 2018 Aug; Vol. 81 (8), pp. 1258-1263. - Publication Year :
- 2018
-
Abstract
- A new methodology is proposed for ractopamine residue analysis in pork. It consists of enzyme-mediated digestion and deconjugation steps; modified quick, easy, cheap, effective, rugged, and safe (QuEChERS) extraction; and liquid chromatography-tandem mass spectrometry (LC-MS/MS). In brief, the samples were digested with protease and then deconjugated with β-glucuronidase enzyme; they were then subjected to extraction and cleanup by QuEChERS and underwent sequential analysis by LC-MS/MS. The method performance was evaluated in accordance to the validation guidelines regulated by the Brazilian Ministry of Agriculture and Food Supply. The limit of detection was 0.15 μg/kg and limit of quantification was 0.5 μg/kg. When the method was applied to real samples, ractopamine residue was found in concentrations (up to 7.86 μg/kg) below international recommendation limits up to 10 μg/kg. The method is sensitive, accurate, quick, simple, and suitable for routine analysis; therefore, it is a monitoring tool that may be adopted by laboratories to achieve compliance levels.
Details
- Language :
- English
- ISSN :
- 1944-9097
- Volume :
- 81
- Issue :
- 8
- Database :
- MEDLINE
- Journal :
- Journal of food protection
- Publication Type :
- Academic Journal
- Accession number :
- 29979614
- Full Text :
- https://doi.org/10.4315/0362-028X.JFP-17-526