Nitrogen fractions of Andalusian goat milk compared to similar types of commercial milk

Mean total protein content was significantly higher in the untreated raw goat milk (3.67 g/100 g) than in the commercial goat milk (3.27 g/100 g) or cow milk (3.14 g/100 g). Mean non-casein content was 0.138 g/100 g in raw goat milk and 0.118 g/100 g in commercial cow milk, and mean non-protein nitrogen was significantly higher in raw goat milk (0.040 g/100 g) than in commercial cow milk (0.027 g/100 g) Nitrogen from casein peptides and from globulin was also determined.