Hostname: page-component-8448b6f56d-jr42d Total loading time: 0 Render date: 2024-04-23T11:03:51.832Z Has data issue: false hasContentIssue false
  • English
  • Français

The effect of decreasing acidity on the solubility of calcium, magnesium and phosphorus in bran and certain pure salt solutions

Published online by Cambridge University Press:  27 March 2009

R. Hill  and
C. Tyler
R. Hill
Affiliation:
Royal Agricultural College, Cirencester*
C. Tyler
Affiliation:
Department of Agricultural Chemistry, The University, Reading
Get access Rights & Permissions [Opens in a new window]

Extract

1. The precipitation of calcium, magnesium, phytate phosphorus, and non-phytate (chiefly phosphate) phosphorus has been determined in ‘hydrolysed’ and ‘unhydrolysed’ bran, with varying amounts of added calcium as calcium carbonate.

2. It was found that calcium phytate was precipitated before non-phytate (chiefly phosphate), whatever level of calcium carbonate was added.

3. Precipitation began and was more complete under more acid conditions when calcium and Ca: P ratio were high.

4. Similar experiments have been carried out using salt solutions containing calcium and phytate, calcium and phosphate, and calcium, phytate, and phosphate. The results were similar in most cases to those of corresponding bran mixtures.

5. The above results have been considered in relation to the precipitations which are likely to occur in the small intestine, and the possible effects of these precipitations on absorption are discussed.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 44 , Issue 3 , June 1954 , pp. 311 - 323
Copyright
Copyright © Cambridge University Press 1954

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

Bethke, R. M., Edgington, B. H. and Kick, C. H. (1933). J. Agric. Res. 47, 331.Google Scholar
Braude, R., Kon, S. K. & White, E. G. (1943). J. Comp. Path. 53, 161.CrossRefGoogle Scholar
Bruce, H. M. & Callow, R. K. (1934). Biochem. J. 28, 517.CrossRefGoogle Scholar
Common, R. H. (1940). J. Agric. Sci. 30, 113.CrossRefGoogle Scholar
Harrison, D. C. & Mellanby, E. (1939). Biochem. J. 33, 1660.CrossRefGoogle Scholar
Hassan, K. (1947). Factors affecting the utilisation of phosphorus in the form of phytic acid by ruminants. Thesis, University of Aberdeen.Google Scholar
Hay, J. G. (1942). Cereal Chem. 19, 326.Google Scholar
Hill, R. & Tyler, C. (1954 a). J. Agr. Sci. 44, 293.CrossRefGoogle Scholar
Hill, R. & Tyler, C. (1954 b). J. Agr. Sci. 44, 306.CrossRefGoogle Scholar
Hoff-Jørgensen, E. (1944). K. danske Vidensk. Selsk. (Mat.-fys. Medd.), 21, no. 7 (in English).Google Scholar
Jones, J. H. (1940). J. Nutr. 20, 367.CrossRefGoogle Scholar
Krieger, C. H. & Steenbock, H. (1940). J. Nutr. 20, 125.CrossRefGoogle Scholar
Lowe, J. T. & Steenbock, H. (1936). Biochem. J. 30, 1126.CrossRefGoogle Scholar
McCance, R. A. & Widdowson, E. M. (1942 a). J. Physiol. 101, 44.CrossRefGoogle Scholar
McCance, R. A. & Widdowson, E. M. (1942 b). J. Physiol. 101, 304.CrossRefGoogle Scholar
McCance, R. A., Widdowson, E. M. & Lehmann, H. (1942). Biochem. J. 36, 686.CrossRefGoogle Scholar
Mellanby, E. (1949). J. Physiol. 109, 488.CrossRefGoogle Scholar
Mellanby, E. (1950). A Story of Nutritional Research, pp. 224–431. Baltimore: The Williams and Wilkins Co.Google Scholar
Møllgaard, H. (1946). Biochem. J. 40, 589.CrossRefGoogle Scholar
Moore, J. H. (1952). The absorption and excretion of minerals by pigs. Thesis, University of Reading.Google Scholar
Posternak, S. (1921). Helv. chim. Acta, 4, 150.CrossRefGoogle Scholar
Sendroy, J. & Hastings, A. B. (1926–1927). J. Biol. Chem. 71, 783.CrossRefGoogle Scholar
Shohl, A. T. (1939). Mineral Metabolism, p. 150. New York: Reinhold Publ. Co.Google Scholar
Tyler, C. (1946). J. Agric. Sci. 36, 275.CrossRefGoogle Scholar
Woolley, D. W. (1944). J. Nutr. 28, 305.CrossRefGoogle Scholar
Yang, E. F. (1940). Nature, Lond., 145, 745.CrossRefGoogle Scholar