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The formation and structure of some proteose-peptone components

Published online by Cambridge University Press:  01 June 2009

Anthony T. Andrews
Anthony T. Andrews
Affiliation:
National Institute for Research in Dairying, Shinfiel, Reading, RG2 9AT
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Summary

Two constituents of the proteose-peptone fraction of bovine milk have been isolated and characterized. Component 5 (PP5) has been shown to represent residues 1–105 and 1–107 of the β-casein amino acid sequence, while component 8-fast (PP8F) corresponds to residues 1–28 of β-casein. Thus, these proteose-peptones represent the N-terminal portions of the β-casein molecule, produced by proteolytic cleavages which form the γ1-, γ2- and γ3-caseins from the C-terminal part. The continuing formation of the total proteose-peptone fraction, PP5, PP8F and the γ-caseins during storage of raw milk at 18 or 37 °C has also been demonstrated

Type
Section B. Milk Proteins: Comparative Aspects, and the Study of some of the Minor Caseins
Information
Journal of Dairy Research , Volume 46 , Issue 2: Symposium on the Physics and Chemistry of Milk Proteins , April 1979 , pp. 215 - 218
Copyright
Copyright © Proprietors of Journal of Dairy Research 1979

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References

REFERENCES

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