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Chemical prediction of water activity in processed cheese

Published online by Cambridge University Press:  01 June 2009

María A. Esteban  and
Andrés Marcos
María A. Esteban
Affiliation:
Department of Food Technology and Biochemistry, Veterinary Faculty, University of Cordoba, 14005 Cordoba, Spain
Andrés Marcos
Affiliation:
Department of Food Technology and Biochemistry, Veterinary Faculty, University of Cordoba, 14005 Cordoba, Spain
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Summary

By linear regression analysis, a highly significant negative correlation (r = −0·96) was found between the mean ash concentration values (g/100 g moisture) and water activity (aw) of six types of processed cheeses (low-fat, semi-fat, fat, extra-fat, double fat and special). The regression equation aw = 0·9951 − 0·0032* (ash), applied to 40 cheese samples, yielded aw values which differed by < 0·005 aw units from those measured experimentally in 75% of the samples. The maximum differences between the calculated and experimental aw values (found in only two samples) were ±0·01 aw units.

Type
Original Articles
Information
Journal of Dairy Research , Volume 56 , Issue 4 , August 1989 , pp. 665 - 668
Copyright
Copyright © Proprietors of Journal of Dairy Research 1989

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References

REFERENCES

Association of Official Agricultural Chemists 1965 Official Methods of Analyste of the AOAC, 10th edn, Washington, DC: AOACGoogle Scholar
British Standards Institution 1963 Methods for the Chemical Analysis of Cheese. London: BSI (Brilish Standard no. 770)Google Scholar
Carić, M. & Kaláb, M. 1987 Processed cheese products. In Cheese: Chemistry, Physics and Microbiology, vol. 2, Major cheese groups pp. 339–383 (Ed. Fox, P. F.) London: Elsevier Applied ScienceGoogle Scholar
Fernández-Salguero, J., Alcalá, M., Marcos, A. & Esteban, M. A. 1986 Measurement and calculation of water activity in Blue cheese. Journal of Dairy Research 53 639–644CrossRefGoogle Scholar
Marcos, A. 1987 Spanish and Portuguese cheese varieties. In Cheese: Chemistry, Physics and Microbiology vol. 2, Major cheese groups pp 185–219 (Ed. Fox, P. F.). London: Elsevier Applied Science.Google Scholar
Marcos, A., Alcalá, M., León, F., Fernández-Salguero, J. & Esteban, M. A. 1981 Water activity and chemical composition of cheese. Journal of Dairy Science 64 622–626CrossRefGoogle Scholar
Marcos, A., Esteban, M. A., Alcalá, M. & Millán, R. 1983 Prediction of water activity of San Simón cheese. Journal of Dairy Science 66 909–911CrossRefGoogle Scholar
Marcos, A., Fernández-Salguero, J., Esteban, M. A. & Alcalá, M. 1985 b Water activity measurement near to 1·00. Journal of Food Technology 20 523–526CrossRefGoogle Scholar
Marcos, A., Fernández-Salguero, J., Esteban, M. A., León, F., Alcalá, M. & Beltran, F. H. 1985 a [Spanish cheeses: Tables of composition, nutritive value and stabilily.] Cordoba, Spain: University of CordobaGoogle Scholar
Rüegg, M. 1985 Water in dairy products related to quality, with special reference to cheese. In Properties of Water in Food (in Relation to Quality and Stability) pp. 603–625 (Eds Simatos, D. and Multon, J. L.) Dordrecht: Martinus Nijhoff PublishersCrossRefGoogle Scholar
Rüegg, M. & Blanc, B. 1977 [Relationships between water activity, water sorption capacity and cheese composition.] Milchwissenschaft 32 193–201Google Scholar