The last few years have seen a number of advances in the understanding of
genetic polymorphisms of caprine caseins, and especially in molecular characterization
of the allelic variants and analysis of their frequencies in Spanish and other
breeds (Grosclaude et al. 1994; Jordana et al. 1996). Although more is being
discovered about the influence of these polymorphisms on the yield and characteristics
of cheeses (Remeuf, 1993; Pirisi et al. 1994), little work has been done on the
quantitation of different casein fractions of goats' milk throughout lactation.
Measurements have been made using SDS-PAGE (Quiles et al. 1990) and cation-
exchange FPLC (Brown et al. 1995), and Recio et al. (1997a) have demonstrated the
potential of capillary electrophoresis (CE) for the analysis and quantitation of milk
proteins. Use of CE has resulted in the development of rapid automated analysis with
very high resolution, requiring very small sample and buffer volumes and with a
significantly reduced amount of solvent waste.The aim of the present study was to determine the influence of herd and milking
period on the contents of the various nitrogen and casein fractions, the latter being
determined by CE, in milk from goats of the Murciana-Granadina breed.
Stress Characterization of Tungsten-Filled through Silicon via Arrays
Using Very High Resolution Multi-Wavelength Raman Spectroscopy
