title: Dependence of the 12-methyltridecanal concentration in beef on the age of the animal.
abstract: The content of 12-methyltridecanal (12-MT), which contributes greatly to the characteristic aroma of stewed beef, was determined by a stable isotope dilution assay in meat samples from nine bovine animals of different ages. The results, which were related to the amount of phospholipids (PL), indicate that 12-MT content increases with the age of beef, e.g., from 36 micrograms.g(-1) PL in a 4-month-old calf to 810 micrograms.g(-1) PL in an 8-year-old cow. The increase of 12-MT content in PL per month varied between 8.4 and 10.9 micrograms.g(-1) PL (mean: 9.3 +/- 0.78 micrograms.g(-1) PL). Possibly 12-MT content is suitable as an indicator for the estimation of the age of a beef sample.
authors.affiliation: Deutsche Forschungsanstalt für Lebensmittelchemie, Garching, Germany.
authors.forename: H
authors.initials: H
authors.lastname: Guth
authors.forename: W
authors.initials: W
authors.lastname: Grosch
mesh_terms: D000375:Aging; D000447:Aldehydes / Q000032:analysis*; D000818:Animals; D002417:Cattle / Q000254:growth & development*; D008401:Gas Chromatography-Mass Spectrometry; D008460:Meat / Q000032:analysis*; D024510:Muscle Development; D018482:Muscle, Skeletal / Q000254:growth & development*; D010743:Phospholipids / Q000032:analysis
chemical_list: D000447:Aldehydes; D010743:Phospholipids; C095952:12-methyltridecanal