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Effects of variations in somatic cell count on the rennet coagulation properties of milk and on the yield, composition and quality of Cheddar cheese

Published online by Cambridge University Press:  01 June 2009

Alistair S. Grandison
Affiliation:
National Institute for Research in Dairying (University of Reading), Shinfield, Reading RG2 9 AT, UK*
Graeme D. Ford
Affiliation:
National Institute for Research in Dairying (University of Reading), Shinfield, Reading RG2 9 AT, UK*

Summary

Cheddar cheeses were prepared from low somatic cell count (SCC) milks and from milks containing 10, 20 and 30% added high SCC milk to give modestly elevated SCC. Increased SCO in the milk were associated with a reduction in the coagulum strength and an increase in moisture content of the cheeses. Cheese texture was affected significantly as judged both by the findings of an assessment panel and by instrumental physical measurement. The panel scores for flavour were also slightly altered. It was concluded that even a small increase in SCC is detrimental to cheese composition and quality, although no significant effects on yield were detected. Relationships between cheese yield, composition and properties, coagulation properties and composition of the milk were also studied. Yield was related to the total solids and fat in the milk but not to the coagulation properties or the flavour or texture of the cheeses. Coagulum strength, cheese composition and cheese texture were strongly interrelated.

Type
Original Articles
Copyright
Copyright © Proprietors of Journal of Dairy Research 1986

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References

REFERENCES

Ali, A. E., Andrews, A. T. & Cheeseman, G. C. 1980 Influence of elevated somatic cell count on casein distribution and cheese-making. Journal of Dairy Research 47 393400CrossRefGoogle Scholar
Annibaldi, S., Berlani, G., Menozzi, P. & Pecorari, M. 1974 [Influence of cell count in milk on cheesemaking.] Scienza e Tecnica Lattiero-Casearia 25 245260Google Scholar
British Standards Institution 1955 Gerber method for the determination of fat in milk and milk products. 1.Apparatus. London: BSI (British Standard 696 part 1)Google Scholar
British Standards Institution 1963 The chemical analysis of liquid milk and cream. London: BSI (British Standard 1741)Google Scholar
British Standards Institution 1969 Gerber method for the determination of fat in milk and milk products. 2. Methods. London: BSI (British Standard 696 part 2)Google Scholar
Butkus, K., Berzhyunas, Z., Intsene, G. & Pesetskas, D. 1970 [Properties of cheeses made from normal milk with an admixture of milk from mastitic cows] Trudy Litovskiĭ Filial Vsesoyuznogo Nauchno-issledovatel'skogo Institula Maslodel' noĭ i Syrodel' noĭ Promyshlennosti. 5 111122Google Scholar
Dean, M. E. 1974 Mastitis is costing you cheese and net profit! Dairy and Ice Cream Field 157 81Google Scholar
Feagan, J. T., Bailey, L. F., Hehir, A. F., McLean, D. M. & Ellis, N. J. 1972 Coagulation properties of milk proteins. I. Effect of genetic variants of milk proteins on rennet coagulation and heat stability of normal milk. Australian Journal of Dairy Technology 27 129134Google Scholar
Florence, E., Milner, D. F. & Harris, W. M. 1984 Nutrient composition of dairy products. I. Cheeses. Journal of the Society of Dairy Technology 37 1316CrossRefGoogle Scholar
Grandison, A. S., Anderson, M., Ford, G. D. & Newell, L. 1985 a Interrelationships between the diet fed to cows, composition and properties of milk and composition and quality of Cheshire cheese from farmhouse manufacturers. Journal of Dairy Research 52 587593CrossRefGoogle Scholar
Grandison, A. S., Anderson, M., Ford, G. D., Newell, L. & Lyon-Smith, P. 1985 b Effect of variation in the composition of milk supply on the composition and quality of farmhouse Cheshire cheese. Journal of Dairy Research 52 573586CrossRefGoogle Scholar
Green, M. L., Turvey, A. & Hobbs, D. G. 1981 Development of structure and texture in Cheddar cheese. Journal of Dairy Research 48 343355CrossRefGoogle Scholar
Hampton, O. & Randolph, H. E. 1969 Influence of mastitis on properties of milk. II. Acid production and curd firmness. Journal of Dairy Science 52 15621565CrossRefGoogle Scholar
Kitchen, B. J. 1981 Review of the progress of Dairy Science: Bovine mastitis: milk compositional changes and related diagnostic tests Journal of Dairy Research 48 167188CrossRefGoogle ScholarPubMed
Law, B. A. & Wigmore, A. S. 1982 Accelerated cheese ripening with food grade proteinases. Journal of Dairy Research 49 137146CrossRefGoogle Scholar
Munro, G. L., Grieve, P. A. & Kitchen, B. J. 1984 Effects of mastitis on milk yield, milk composition, processing properties and yield and quality of milk products. Australian Journal of Dairy Technology 39 716Google Scholar
O'Leary, J. & Leavitt, B. 1982 Influence of mastitis on milk production, milk quality, and cheese yield. Kentucky Agricultural Experiment Station Progress Report no. 264 25 pp.Google Scholar
Olson, N. F. 1978 Properties of milk and their relation to cheese yield. Dairy and Ice Cream Field 161(1) 6667Google Scholar
Pettipher, G. L. & Rodrigues, U. M. 1981 Rapid membrane filtration epifluorescent microscopic technique for the direct enumeration of somatic cells in fresh and formalin-preserved milk. Journal of Dairy Research 48 239246CrossRefGoogle Scholar
Redaelli, G. & Ruffo, G. 1976 [Mastitis control and its effect on the suitability of milk for cheese production.] Archiv für Lebensmittelhygiene 27 1923Google Scholar
Ruffo, G., Carini, S., Maffeo, G. & Vezzoni, A. 1975 [Effect of bovine mastitis on Grana cheese production.] Industria del Latte 11 4158Google Scholar
Shabma, K. K. & Randolph, H. H. 1974 Influence of mastitis on properties of milk. VIII. Distribution of soluble and micellar casein. Journal of Dairy Science 57 1923Google Scholar
Storry, J. E., Grandison, A. S., Millard, D., Owen, A. J. & Ford, G. D. 1983 Chemical composition and coagulating properties of renneted milks from different breeds and species of ruminant. Journal of Dairy Research 50 215229CrossRefGoogle Scholar