title: Quantitative determination of alpha(s2)- and alpha(s1)-casein in goat's milk with different genotypes by capillary electrophoresis.
abstract: A capillary electrophoresis (CE) method has been applied for the quantitative determination of alpha(s1)- and alpha(s2)-CN in goat's milk. Several analytical parameters were evaluated showing the reliability of this CE method. Coefficients of determination (R2) greater than 99% were obtained and determination limits of 1.23 and 0.98 mg/ml were achieved for alpha(s1)- and alpha(s2)-CN, respectively. The analytical parameters studied in terms of accuracy, precision and recovery were within acceptable limits. Among 18 samples of 4 different genotypes (BB, EE, BF and FF) for alpha(s1)-CN were analysed, different amounts were obtained from the genotypes.
authors.affiliation: Instituto de Fermentaciones Industriales (CSIC), Juan de la Cierva 3, 28006 Madrid, Spain.
authors.forename: José Angel
authors.initials: JA
authors.lastname: Gómez-Ruiz
authors.forename: Beatriz
authors.initials: B
authors.lastname: Miralles
authors.forename: Pastora
authors.initials: P
authors.lastname: Agüera
authors.forename: Lourdes
authors.initials: L
authors.lastname: Amigo
mesh_terms: D000818:Animals; D002364:Caseins / Q000032:analysis*; D019075:Electrophoresis, Capillary / Q000379:methods*; D005838:Genotype; D006041:Goats
chemical_list: D002364:Caseins