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A note on the variation of protein fractions in the milk of indigenous Greek goats (Capra prisca) during the milking period

Published online by Cambridge University Press:  02 September 2010

D. Zygoyiannis  and
N. Katsaounis
D. Zygoyiannis
Affiliation:
Department of Animal Husbandry, Faculty of Veterinary Medicine, Aristotelian University of Thessaloniki, Macedonia Greece
N. Katsaounis
Affiliation:
Department of Animal Husbandry, Faculty of Veterinary Medicine, Aristotelian University of Thessaloniki, Macedonia Greece
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Abstract

The variation of protein fractions in the milk of indigenous Greek goats fCapra prisca) during the milking period was studied. Total nitrogen (TN), non-casein or soluble nitrogen (SN), rennet whey nitrogen (WN), non-protein nitrogen (NPN) were determined and from these analyses crude protein (CP), true protein (TP), casein (Cas) rennet casein or coagulable protein (Coag P) were calculated. The NPN component is lost during the cheese process whereas Cas and Coag P are important constituents of the cheese itself. The ratios NPNICP, CaslTP and Coag PITP throughout milking, were for the groups A and B 0·0646 and 0·0648 (s.e.d. = 0·00025), 0·846 and 0·845 (s.e.d. = 0·0141) and 0·916 and 0·904 (s.e.d. = 0·0112), respectively, suggesting a high level of suitability for conversion of milk into cheese.

Keywords

goatsmilk proteins
Type
Research Article
Information
Animal Production , Volume 52 , Issue 3 , June 1991 , pp. 545 - 547
Copyright
Copyright © British Society of Animal Science 1991

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References

REFERENCES

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Zygoyiannis, D. 1987. The milk yield and milk composition of the Greek indigenous goat (Capra prisca) as influenced by duration of suckling period. Animal Production 44: 107–116.Google Scholar
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