Hostname: page-component-586b7cd67f-t7czq Total loading time: 0 Render date: 2024-11-26T12:44:21.107Z Has data issue: false hasContentIssue false

491. The effect of pre-heating milk at 230° F. (110° C) on the keeping quality of spray-dried whole milk

Published online by Cambridge University Press:  01 June 2009

J. C. D. White
Affiliation:
The Hannah Dairy Research Institute, Kirkhill, Ayr
R. Waite
Affiliation:
The Hannah Dairy Research Institute, Kirkhill, Ayr
H. B. Hawley
Affiliation:
Messrs Aplin ' Barrett Ltd., Yeovil
J. G. Clark
Affiliation:
The A. P. V. Co. Ltd., London
Kathleen M. Henry
Affiliation:
National Institute for Research in Dairying, University of Reading

Extract

1. Three samples of spray-dried whole milk were made from milk pre-heated at 190, 230° and 230° F. with regenerative cooling to 190° F., in an A.P.V. H.M. Paraflow Heat Exchanger and dried in a Kestner plant. The powders were packed in plain tin-plate cans and stored at 17, 37 and 47° C. The keeping quality of the powders was determined by examination at intervals for palatability, absorption of oxygen and peroxide value of the fat. The biological value and true digestibility of the protein of the powders were estimated in rat-feeding experiments initially and after 6 months' storage. The breadmaking properties of the powders were also examined.

2. The keeping quality, biological and baking tests showed that the three milk powders were very much alike, and that no advantage was gained by raising the preheating temperature of the liquid milk from 190 to 230° F.

Type
Original Articles
Copyright
Copyright © Proprietors of Journal of Dairy Research 1952

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)Mattick, A. T. R., Hiscox, E. R., Crossley, E. L., Lea, C. H., Findlay, J. D., Smith, J. A. B., Thompson, S. Y., Kon, S. K. ' Egdell, J. W. (1945). J. Dairy Res. 14, 116.Google Scholar
(2)Findlay, J. D., Higgingbottom, C., Smith, J. A. B. ' Lea, C. H. (1946). J. Dairy Res. 14, 378.Google Scholar
(3)White, J. C. D., Smith, J. A. B. ' Lea, C. H. (1947). J. Dairy Res. 15, 127.Google Scholar
(4)Josephson, D. V. ' Doan, F. J. (1939). Milk Dlr, 29, 35.Google Scholar
(5)Townley, R. C. ' Gould, I. A. (1943). J. Dairy Sci. 26, 689.Google Scholar
(6)Bost, R. W., Turner, J. O. ' Norton, R. D. (1932). J. Amer. chem. Soc. 54, 1985.Google Scholar
(7)Bost, R. W., Turner, J. O. ' Conn, M. W. (1933). J. Amer. chem. Soc. 55, 4956.Google Scholar
(8)Rowland, S. J. (1938). J. Dairy Res. 9, 30, 42 ' 47.Google Scholar
(9)Rowland, S. J. (1948). Private communication (see Rep. Nat. Inst. Res. Dairying, 1944–6, p. 28).Google Scholar
(10)Parsons, A. T. (1949). J. Dairy Res. 16, 377.Google Scholar
(11)Hetrick, J. H. ' Tracy, P. H. (1945). J. Milk Tech. 8, 5.Google Scholar
(12)Lea, C. H. ' Gan, R. (1946). J. Dairy Res. 14, 400.Google Scholar
(13)Henry, K. M., Kon, S. K., Lea, C. H. ' White, J. C. D. (1948). J. Dairy Res. 15, 292.CrossRefGoogle Scholar
(14)Hills, G. L. ' Thiel, C. C. (1946). J. Dairy Res. 14, 340.Google Scholar
(15)Chapman, R. A. ' Maokay, K. (1949). J. Amer. Oil chem. Soc. 26, 360.Google Scholar
(16)Mitchell, H. H. (19231924). J. biol. Chem. 58, 873.Google Scholar
(17)Mitchell, H. H. ' Carman, G. G. (1926). J. biol. Chem. 68, 183.Google Scholar
(18)de Loureiro, A. (1931). Arch. Patol. Lisboa, 3, 72.Google Scholar
(19)Henry, K. M., Kon, S. K. ' Watson, M. B. (1937). Milk and Nutrition, Part I, p. 37. Reading: Nat. Inst. Res. Dairying.Google Scholar
(20)Henry, K. M. ' Kon, S. K. (1947). J. Dairy Res. 15, 140.Google Scholar
(21)György, P., Stiller, E. T. ' Williamson, M. B. (1943). Science, 98, 518.Google Scholar
(22)Williamson, M. B. (1944). Food Res. 9, 298.Google Scholar