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Effect of homogenization on the heat stability of milk

Published online by Cambridge University Press:  01 June 2009

A. W. Maurice Sweetsur  and
D. Donald Muir
A. W. Maurice Sweetsur
Affiliation:
Hannah Research Institute, Ayr, Scotland, KA6 5HL
D. Donald Muir
Affiliation:
Hannah Research Institute, Ayr, Scotland, KA6 5HL
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Summary

The effect of homogenization on the heat stability characteristics of milk was examined. The heat stability of homogenized milk, as determined by the time taken for protein clots to form when heated at 140 °C, was reduced with increasing pressure in the range 3·5–34·5 MPa. The heat stability of homogenized milks was greater for samples obtained in the summer months than for those obtained in the winter. The general destabilizing effect of homogenization could be partly offset by 2-stage homogenization (20·7 MPa followed by 3·5 MPa), addition of phosphate stabilizers (0·08% w/v) or homogenization at a high temperature (65 °C). Whilst homogenized and unhomogenized milks reacted similarly to the addition of Ca, phosphate stabilizers, sulphydryl-blocking and oxidizing agents, the effects of season, addition of urea or formaldehyde were different for homogenized milk.

Type
Original Articles
Information
Journal of Dairy Research , Volume 50 , Issue 3 , August 1983 , pp. 291 - 300
Copyright
Copyright © Proprietors of Journal of Dairy Research 1983

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References

REFERENCES

Davies, D. T. & White, J. C. D. 1966 The stability of milk protein to heat. 1. Subjective measurement of heat stability of milk. Journal of Dairy Research 33 67–81CrossRefGoogle Scholar
Feagan, J. T., Bailey, L. F., Hehir, A. F., McLean, D. M. & Ellis, N. J. S. 1972 Coagulation of milk proteins. 1. Effect of genetic variants of milk proteins on rennet coagulation and heat stability of normal milk. Australian Journal of Dairy Technology 27 129–134Google Scholar
Fox, P. F. & Hoynes, M. C. T. 1975 Heat stability of milk: influence of colloidal calcium phosphate and β-lactoglobulin. Journal of Dairy Research 42 427–435CrossRefGoogle Scholar
Fox, P. F. & Morrissey, P. A. 1977 Reviews of the progress of Dairy Science: the heat stability of milk. Journal of Dairy Research 44 627–646CrossRefGoogle Scholar
Harper, W. J. 1976 Processing-induced changes. In Dairy Technology and Engineering pp. 539–596 (Eds Harper, W. J. & Hall, C. W.). Westport, Conn.; Avi Publishing Co. Inc.Google Scholar
Holt, C. & Muir, D. D. 1979 Inorganic constituents of milk. 1. Correlation of soluble calcium with citrate in bovine milk. Journal of Dairy Research 46 433–439CrossRefGoogle Scholar
Holt, C., Muir, D. D. & Sweetsur, A. W. M. 1978 a The heat stability of milk and concentrated milk containing added aldehydes and sugars. Journal of Dairy Research 45 47–52CrossRefGoogle Scholar
Holt, C., Muir, D. D. & Sweetsur, A. W. M. 1978 b Seasonal changes in the heat stability of milk from creamery silos in south-west Scotland. Journal of Dairy Research 45, 183–190CrossRefGoogle Scholar
Jones, V. A. & Harper, W. J. 1976 General processes for fluid milks. In Dairy Technology and Engineering p. 141–184 (Eds Harper, W. J. & Hall, C. W.). Westport, Conn.: Avi Publishing Co. Inc.Google Scholar
Muir, D. D., Kelly, M. E., Phillips, J. D. & Wilson, A. G. 1978 The quality of blended raw milk in creameries in south-west Scotland. Journal of the Society of Dairy Technology 31 137–144CrossRefGoogle Scholar
Muir, D. D. & Sweetsur, A. W. M. 1976 The influence of naturally occurring levels of urea on the heat stability of bulk milk. Journal of Dairy Research 43 495–499CrossRefGoogle Scholar
Muir, D. D. & Sweetsur, A. W. M. 1977 Effect of urea on the heat coagulation of the caseinate complex in skim-milk. Journal of Dairy Research 44 249–257CrossRefGoogle Scholar
Muir, D. D. & Sweetsur, A. W. M. 1978 The effect of concentration on the heat stability of skim-milk. Journal of Dairy Research 45 37–45CrossRefGoogle Scholar
Oortwijn, H. & Walstra, P. 1979 The membranes of recombined fat globules. 2. Composition. Netherlands Milk and Dairy Journal 33 134–154Google Scholar
Oortwijn, H., Walstra, P. & Mulder, H. 1977 The membranes of recombined fat globules. 1. Electron microscopy. Netherlands Milk and Dairy Journal 31, 134–147Google Scholar
Robertson, N. H. & Dixon, A. 1969 The nitrogen fractions and the heat stability of bovine milk. Agroanimalia 1 141–144Google Scholar
Rose, D. 1961 Factors affecting the pH-sensitivity of the heat stability of milk from individual cows. Journal of Dairy Science 44 1405–1413CrossRefGoogle Scholar
Rose, D. 1962 Factors affecting the heat stability of milk. Journal of Dairy Science 45 1305–1311CrossRefGoogle Scholar
Rose, D. 1963 Heat stability of bovine milk: a review. Dairy Science Abstracts 25 45–52Google Scholar
Skudder, P. J., Thomas, E. L., Pavey, J. A. & Perkin, A. G. 1981 Effects of adding potassium iodate to milk before UHT treatment. 1. Reduction in the amount of deposit on the heated surfaces. Journal of Dairy Research 48 99–113CrossRefGoogle ScholarPubMed
Sweetsur, A. W. M. & Muir, D. D. 1980 The use of permitted additives and heat-treatment to optimize the heat-stability of skim milk and concentrated skim milk. Journal of the Society of Dairy Technology 33 101–105CrossRefGoogle Scholar
Sweetsur, A. W. M. & White, J. C. D. 1974 Studies on the heat stability of milk protein. 1. Interconversion of type A and type B milk heat-stability curves. Journal of Dairy Research 41 349–358CrossRefGoogle Scholar
Tessier, H. & Rose, D. 1964 Influence of κ-casein and β-lactoglobulin on the heat stability of skim milk. Journal of Dairy Science 47 1047–1051CrossRefGoogle Scholar
Walstra, P. 1975 Effect of homogenization on the fat globule size distribution in milk. Netherlands Milk and Dairy Journal 29 279–294Google Scholar
Walstra, P. 1980 Effect of homogenization on milk plasma. Netherlands Milk and Dairy Journal 34 181–190Google Scholar
White, J. C. D. & Davies, D. T. 1966 The stability of milk protein to heat. 3. Objective measurement of heat stability of milk. Journal of Dairy Research 33 93–102CrossRefGoogle Scholar