Hostname: page-component-78c5997874-xbtfd Total loading time: 0 Render date: 2024-11-09T06:06:40.985Z Has data issue: false hasContentIssue false
  • English
  • Français

439. The rate of creaming of raw cows' and buffaloes' milk

Published online by Cambridge University Press:  01 June 2009

A. H. Fahmi
A. H. Fahmi
Affiliation:
Dairying Department, Faculty of Agriculture, Foad-El-Awal University, Giza, Egypt
Get access Rights & Permissions [Opens in a new window]

Extract

A preliminary investigation was carried out on the effects of two ranges of temperature (room and refrigerator) on the creaming properties of cows' and buffaloes' milk. The results reported show that:

(1) While refrigerator temperature favoured the creaming of cows' milk, it greatly retarded the creaming of buffaloes' milk. This retarding effect was associated with a smaller cream-layer volume and a greater percentage of fat in the skim milk.

(2) At room temperature, the creaming of buffaloes' milk proceeded much more rapidly, suggesting that fat clumping was probably being induced.

(3) For both kinds of milk, when creamed at room temperature, the maximum values of the cream-layer volume and the specific cream-volume were found to be less than when creaming occurred in the refrigerator: reverse temperature relationships were observed in connexion with the maximum fat content of the skim milks.

In conclusion, it may be added that the observed variations in the cream-layer volume, and the fat content of the skim milks resulting from creaming at the two different temperature levels and for the varying lengths of time, would clearly result in some variability in any cheese made from such milk. This would particularly affect the yield, quality, composition and nutritive value of the cheese.

Type
Original Articles
Information
Journal of Dairy Research , Volume 18 , Issue 1 , February 1951 , pp. 106 - 112
Copyright
Copyright © Proprietors of Journal of Dairy Research 1951

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

(1)Dahlberg, A. C. & Marquardt, J. C. (1929). Tech. Bull. N.Y. St. agric. Exp. Sta. no. 157.Google Scholar
(2)Dunkley, W. L. & Sommer, H. H. (1944). Res. Bull. Wis. agric. Exp. Sta. no. 151.Google Scholar
(3)Fahmi, A. H. (1949). Papers and Communications of the XIIth Int. Dairy Congress, Stockholm 1, 666.Google Scholar
(4)British Standards Institution (1936). Brit. Stand. Specif. no. 696, part 2, p. 15.Google Scholar
(5)Van Ber Burg, B. (1921). Alg. Zuivelbl. 3. Cited from ref. (8).Google Scholar
(6)Rahn, O. (1921). Forsch. Geb. Milchwirtch, u. Molkereiwesen, 1, 133, 165 and 213. Cited from ref. (8).Google Scholar
(7)Van Dam, W. & Sirks, H. A. (1922). Versl. BijkslandbProefst., 's Grav., 26, 106. Cited from ref. (8).Google Scholar
(8)Troy, H. C. & Sharp, P. F. (1928). J. Dairy Sci. 11,189.CrossRefGoogle Scholar
(9)Zein-El-Abidine, A. (1945). Ph.D. Thesis submitted to Fouad 1st Univ., Giza, Egypt.Google Scholar
(10)Marcas, L. (1904). Rev. gen. Lait, 3, 361. Cited from ref. (13).Google Scholar
(11)Henseval, M. (1903). Rev. gén. Lait, 1, 366. Cited from ref. (8).Google Scholar
(12)Marcas, L. (1903). Bull. Agric. Brux. 19, 1228. Cited from ref. (8).Google Scholar
(13)Hammer, B. W. (1916). Res. Bull. Iowa agric. Exp. Sta. no. 31.Google Scholar
(14)Babcock, S. M. (1891). Bull. Wis. agric. Exp. Sta. no. 29.Google Scholar
(15)Woll, F. W., Babcock, S. M. & Russell, H. L. (1903). 20th Ann. Rep. Wis. agric. Exp. Sta.Google Scholar