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A microassay for the syneresis of cheese curd

Published online by Cambridge University Press:  01 June 2009

Robert J. Hall
Affiliation:
Schools of Biochemistry and Chemical Engineering, University of New South Wales, Kensington, New South Wales, Australia
Peter M. Linklater
Affiliation:
Schools of Biochemistry and Chemical Engineering, University of New South Wales, Kensington, New South Wales, Australia

Summary

A micro scale syneresis assay, using the natural optical density of the whey released as a trace, is reported. This assay is suitable for use with raw, reconstituted skim-milk (RSM) or artificial milk. Using RSM the reproducibility and accuracy of the method compared favourably with larger scale laboratory assays. When the method was used to investigate the syneresis properties of artificial micelle milk (AMM), the rate and extent of syneresis and response to a major variable such as pH were very similar to those of RSM. This suggests that the assay used in conjunction with AMM is suitable for investigating the mechanism of syneresis at a molecular level.

Type
Original Articles
Copyright
Copyright © Proprietors of Journal of Dairy Research 1984

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References

REFERENCES

Beeby, R. 1959 A method for following the syneresis of the rennet coagulum in milk. Australian Journal of Dairy Technology 14 7779Google Scholar
Cheeyan, M., Van Wyk, P. J., Olson, N. F. & Richardson, T. 1975 Secondary phase and mechanism of enzymic milk coagulation. Journal of Dairy Science 58 477481Google Scholar
Cheeseman, G. C. 1962 Syneresis of milk and caseinate solutions. 16th International Dairy Congress, Copenhagen, B 465471Google 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 129134Google Scholar
Hill, R. D. 1970 The effect of the modification of arginine side chains in casein on the coagulation of rennin-altered casein. Journal of Dairy Research 37 187192CrossRefGoogle Scholar
Lawrence, A. J. 1959 Syneresis of rennet curd. Australian Journal of Dairy Technology 14 166172.Google Scholar
Lawrence, A. J. & Hill, R. D. 1974 A method for measuring the syneresis of cheese-curd. 19th International Dairy Congress, New Delhi 1E 204205Google Scholar
Patel, M. C., Lund, D. B. & Olsen, N. F. 1972 Factors affecting syneresis of renneted milk gels. Journal of Dairy Science 55 913918CrossRefGoogle Scholar
Pulay, G., CsóK, J. & Bakos, A. 1970 New method for measuring the syneresis of cheese curd. 18th International Dairy Congress, Sydney 1E 326Google Scholar
Schmidt, D. G., Koops, J. & Westerbeek, D. 1977 Properties of artificial casein micelles. 1. Preparation, size distribution and composition. Netherlands Milk and Dairy Journal 31, 328341Google Scholar
Schmidt, D. G. & Koops, J. 1977 Properties of artificial casein micelles. 2. Stability towards ethanol, dialysis pressure and heat in relation to casein composition. Netherlands Milk and Dairy Journal 31 342357Google Scholar
Schmidt, D. G., Both, P. & Koops, J. 1979 Properties of artificial casein micelles. 3. Relationship between salt composition, size and stability towards ethanol, dialysis and heat. Netherlands Milk and Dairy Journal 33 4049Google Scholar
Storry, J. E. & Ford, G. D. 1982 Development of coagulum firmness in renneted milk – a two-phase process. Journal of Dairy Research 49 343346CrossRefGoogle Scholar
Tarodo De La Fuente, B. & Alais, C. 1975 Physico-chemical studies on the enzymic coagulation of milk. Chimia 29 379383Google Scholar
Zviedrans, P. & Graham, E. R. B. 1981 An improved tracer method for measuring the syneresis of rennet curd. Australian Journal of Dairy Technology 36 117120Google Scholar