title: 1H-HRMAS NMR study of cold smoked Atlantic salmon (Salmo salar) treated with E-beam.
abstract: (1)H High resolution magic angle spinning (HRMAS) NMR spectroscopic data in combination with principal components analysis and analysis of variance were used to differentiate between irradiated and non-irradiated cold-smoked Atlantic salmon (Salmo salar). NMR profiling was obtained, with a spectral acquisition time of less than 8 min, from a small sample size of intact white salmon muscle, by non-destructive analysis that includes a very simple and rapid sample preparation step. Results obtained enable the use of creatine, trimethylamine oxide and the sum of phosphorylcholine and glycerophosphorylcholine as diagnostic compounds to detect irradiation treatment. This study shows the potential of (1)H-HRMAS to be a rapid method for investigating compositional changes due to food processing as well as to confirm the presence or absence of some bioactive compounds in irradiated samples.
authors.affiliation: CAI de RMN y RSE, Universidad Complutense de Madrid, 28040 Madrid, Spain.
authors.forename: Palmira
authors.initials: P
authors.lastname: Villa
authors.forename: David
authors.initials: D
authors.lastname: Castejón
authors.forename: Marta
authors.initials: M
authors.lastname: Herraiz
authors.forename: Antonio
authors.initials: A
authors.lastname: Herrera
mesh_terms: D000818:Animals; D005511:Food Handling; D009682:Magnetic Resonance Spectroscopy / Q000592:standards*; D011522:Protons; D012015:Reference Standards; D020317:Salmo salar; D012474:Salmon
chemical_list: D011522:Protons