Quantitation of lysinoalanine in dairy products by liquid chromatography–-mass spectrometry with selective ion monitoring (Articolo in rivista)

Type
Label
  • Quantitation of lysinoalanine in dairy products by liquid chromatography–-mass spectrometry with selective ion monitoring (Articolo in rivista) (literal)
Anno
  • 2009-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/j.foodchem.2009.03.041 (literal)
Alternative label
  • Calabrese MG; Mamone G, Caira S, Ferranti P, Addeo F. (2009)
    Quantitation of lysinoalanine in dairy products by liquid chromatography–-mass spectrometry with selective ion monitoring
    in Food chemistry
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Calabrese MG; Mamone G, Caira S, Ferranti P, Addeo F. (literal)
Pagina inizio
  • 799 (literal)
Pagina fine
  • 805 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://www.isa.cnr.it (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 116 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Institute of Food Science, National Research Council, via Roma 64, 83100 Avellino, Italy Department of Food Science, University of Naples Federico II, Parco Gussone, 80055 Portici (Napoli), Italy (literal)
Titolo
  • Quantitation of lysinoalanine in dairy products by liquid chromatography–-mass spectrometry with selective ion monitoring (literal)
Abstract
  • The unnatural amino acid lysinoalanine (LAL) has been identified in milk and cheese products by liquid chromatography mass spectrometry (LC/ESI/MS) with selective ion monitoring (SIM) of the 9-fluorenylmethylchloro- formate (FMOC) derivative. LAL is not present in raw milk or derived from Mozzarella cheese; however, high amounts of LAL are found in calcium caseinate and milk powder. As expected, milk fortified with caseinate or whey protein powder produces cheese with higher LAL content. Our analytical procedure is based on the simultaneous detection of specific ion masses of the FMOC–LAL derivative and the N-e-methyl-lysine internal standard. A linear relationship was observed within the 0.2–20 ppm concentration range, in addition to a high correlation coefficient and 3% relative standard deviation. (literal)
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