Hostname: page-component-78c5997874-8bhkd Total loading time: 0 Render date: 2024-11-19T14:45:19.992Z Has data issue: false hasContentIssue false

Seasonal variation in the viscosity index and adhesive strength of casein from the milk of individual cows

Published online by Cambridge University Press:  01 June 2009

C. R. Southward
Affiliation:
New Zealand Dairy Research Institute, Palmerston North, New Zealand
R. M. Dolby
Affiliation:
New Zealand Dairy Research Institute, Palmerston North, New Zealand

Summary

The viscosity index and adhesive strength of casein from the milk of 6 individual cows were determined on samples collected regularly throughout the 9-month dairying season. The viscosity index of the casein from each cow showed a seasonal decline while the adhesive strength showed a general increase during this time. Casein from one cow had a consistently low viscosity index attributed to the presence in it of a rare genetic variant of α-casein. It is suggested that the variations in viscosity index and adhesive strength are lactational rather than seasonal.

Type
Original Articles
Copyright
Copyright © Proprietors of Journal of Dairy Research 1968

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Dolby, R. M. (1961). Aust. J. Dairy Technol. 16, 261.Google Scholar
Dolby, R. M. (1964). Aust. J. Dairy Technol. 19, 7.Google Scholar
Hemstock, G. A. & Swanson, J. W. (1957). TAPPI 40, 794.Google Scholar
Salzberg, H. K. & Britton, R. K. (1963). In Testing of Adhesive, chap. 2. TAPPI Monograph Series no. 26. New York: Tech. Ass. Pulp and Paper Ind.Google Scholar
Salzberg, H. K., Georgevits, L. E. & Cobb, R. M. K. (1961). In Synthetic and Protein Adhesives for Paper Coating, chap. 7. TAPPI Monograph Series no. 22. New York: Tech. Ass. Pulp and Paper Ind.Google Scholar
Sutermeister, E. (1914). Paper 14, 19.Google Scholar
Sutermeister, E. & Browne, F. L. (1939). Casein and its Industrial Applications, New York: Reinhold Publishing Co.Google Scholar
Tappi Specification T 459 m-42. New York: Tech. Ass. Pulp and Paper Ind.Google Scholar
Thompson, M. P., Kiddy, C. A., Pepper, L. & Zittle, C. A. (1962). Nature, Lond. 195, 1001.Google Scholar