Analysis of major ovine milk proteins by reversed-phase high-performance liquid chromatography and flow injection analysis with electrospray ionization mass spectrometry.
J Chromatogr A
; 870(1-2): 371-80, 2000 Feb 18.
Article
en En
| MEDLINE
| ID: mdl-10722092
ABSTRACT
Ovine milk proteins were analyzed both by coupling HPLC and electrospray ionization mass spectrometry (ESI-MS) and by flow injection analysis and ESI-MS detection after separation and collection of fractions from gel permeation chromatography. These methods resolved the four ovine caseins and whey proteins and made it possible to study the complexity of these proteins associated with genetic polymorphism, post-translational changes (phosphorylation and glycosylation) and the presence of multiple forms of proteins. The experimental molecular masses of ewe milk proteins were 19,373 for kappa-casein 3P; 25,616 for alpha(s2)-casein 10P; 23,411 for alpha(s1)-casein C-8P; 23,750 for beta-casein 5P; 18,170 and 18,148 for beta-lactoglobulins A and B; 14,152 for alpha-lactalbumin A and 66,322 for serum albumin.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Espectrometría de Masas
/
Cromatografía Líquida de Alta Presión
/
Proteínas de la Leche
Límite:
Animals
Idioma:
En
Revista:
J Chromatogr A
Año:
2000
Tipo del documento:
Article
País de afiliación:
España
Pais de publicación:
HOLANDA
/
HOLLAND
/
NETHERLANDS
/
NL
/
PAISES BAJOS
/
THE NETHERLANDS