Authentication of fattening diet of goat kid according to their fatty acid profile from perirenal fat.
Fatty acids of forty-two samples of perirenal fat of goat kids reared on three different feeding systems: goat milk (B), milk replacer (R) and milk-based starter (F) have been analyzed by Gas Chromatography flame ionization detector. The lipids were extracted by melting of perirenal fat in a microwave oven. The fat was then filtered and dissolved in hexane. This analysis was performed on a column (100 m x 0.25 mm i.d. and 0.25 microm film thickness) coated with a polar stationary phase HP-88 and flame ionization detector was used. Hydrogen (25 psi inlet constant pressure) was used as carrier gas. Programmed temperature was kept at 175 degrees C and held isothermally for 10 min, and was then raised to 205 degrees C at a rate of 3 degrees C/min and held isothermally for 10 min. By using the fatty acids as chemical descriptors, pattern recognition techniques were applied to differentiate between goat milk, milk replacer and milk-based starter fattening diet of goat kid. C18:2 and C18:3 acids were found to be the most differentiating variables.
Mellado-González
Tania
T
Departamento de Bromatología y Nutrición, Universidad Autónoma de Tamaulipas, UAM Reynosa-Aztlán, Mexico.
Narváez-Rivas
Mónica
M
Alcalde
M Jesús
MJ
Cano
Tomás
T
León-Camacho
Manuel
M
D000273:Adipose Tissue; D000818:Animals; D000831:Animals, Newborn; D002849:Chromatography, Gas; D004032:Diet; D005227:Fatty Acids / Q000032:analysis*; D006041:Goats / Q000378:metabolism*; D007668:Kidney; D009829:Oleic Acids / Q000032:analysis
D005227:Fatty Acids; D009829:Oleic Acids