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Studies on lipid digestion in the preruminant calf

2.* A comparison of the products of lipolysis of milk fat by salivary and pancreatic lipases in vitro

Published online by Cambridge University Press:  13 December 2007

J. D. Edwards-Webb  and
S. Y. Thompson
J. D. Edwards-Webb
Affiliation:
National Institute for Research in Dairying, Shinfield, Reading RG2 9AT
S. Y. Thompson
Affiliation:
National Institute for Research in Dairying, Shinfield, Reading RG2 9AT
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Abstract

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1. A comparison has been made of the products of lipolysis of the fat in cow's milk by salivary and pancreatic lipases (EC 3.1.1.3) from a preruminant calf.

2. It was confirmed that salivary lipase releases short-chain acids preferentially, particularly butyric and caproic acids. This was not only true initially but also as the course of lipolysis progressed. Even after 60 min incubation the longer-chain acids were only released to about one-twentieth of the extent of butyric acid.

3. Although pancreatic lipase also initially released proportionately more butyric acid than other fatty acids, within 30 min the longer-chain acids were released to about half the extent of butyric acid.

4. Since the over-all extent of lipolysis by salivary lipase was limited by its inability to release long-chain acids, the release of these acids (which comprise two-thirds of the total fatty acids of milk fat) in the calf is likely to be dependent on the subsequent action of pancreatic lipase.

5. The release of fatty acids by pancreatic lipase was enhanced by pre-incubating milk fat with salivary lipase.

Type
Papers on General Nutrition
Information
British Journal of Nutrition , Volume 37 , Issue 3 , May 1977 , pp. 431 - 440
Copyright
Copyright © The Nutrition Society 1977

References

REFERENCES

Chandan, R. C., Khan, I. M. & Shahani, K. M. (1976). J. Dairy Sci. 59, 847.CrossRefGoogle Scholar
Chapman, H. W. & Hamilton, F. J. (1962). Aust. vet. J. 38, 400.Google Scholar
Cohen, M., Morgan, R. G. H. & Hofmann, A. F. (1971). Gastroenterology 60, 1.Google Scholar
Constantin, M. J., Paséro, L. & Desnuelle, P. (1960). Biochim. biophys. Acta 43, 103.Google Scholar
Edwards-Webb, J. D. (1975). J. Sci. Fd Agric. 26, 1943.Google Scholar
Folch, J., Lees, M. & Sloane Stanley, G. H. (1957). J. biol Chem. 226, 497.Google Scholar
Gooden, J. M. (1973). Aust. J. biol. Sci. 26, 1189.CrossRefGoogle Scholar
Grosskopf, J. F. W. (1965). Onderstepoort J. vet. Res. 32, 153.Google Scholar
Hamilton, R. K. & Raven, A. M. (1973). J. Sci. Fd Agric. 24, 257.CrossRefGoogle Scholar
Harper, W. J. (1957). J. Dairy Sci. 40, 556.CrossRefGoogle Scholar
Harper, W. J. & Gould, I. A. (1955). J. Dairy Sci. 38, 87.CrossRefGoogle Scholar
Huber, J. T., Jacobson, N. L., Allen, R. S. & Hartman, P. A. (1961). J. Dairy Sci. 44, 1494.CrossRefGoogle Scholar
McCormick, R. J. & Stewart, W. E. (1967). J. Dairy Sci. 50, 568.CrossRefGoogle Scholar
Nelson, G. H. & Freeman, N. K. (1959). J. biol. Chem. 234, 1375.Google Scholar
Olivecrona, T., Hernell, O., Egelrud, T., Billström, Å., Helander, H., Samuelson, G. & Fredrikzon, B. (1973). In Dietary Lipids and Postnatal Development, p. 77 [Galli, C., Jacini, G. and Pecile, A., editors]. New York: Raven Press.Google Scholar
Otterby, D. E., Ramsey, H. A. & Wise, G. H. (1964 a). J. Dairy Sci. 47, 993.Google Scholar
Otterby, D. E., Ramsey, H. A. & Wise, G. H. (1964 b). J. Dairy Sci. 47, 997.Google Scholar
Paltauf, F., Esfandi, F. & Holasek, A. (1974). FEBS Lett. 40, 119.Google Scholar
Pitas, R. E., Sampugna, J. & Jensen, R. G. (1967). J. Dairy Sci. 50, 1332.Google Scholar
Ramsey, H. A., Wise, G. H. & Tove, S. B. (1956). J. Dairy Sci. 39, 1312.Google Scholar
Ramsey, H. A. & Young, J. W. (1961 a). J. Dairy Sci. 44, 2227.CrossRefGoogle Scholar
Ramsey, H. A. & Young, J. W. (1961 b). J. Dairy Sci. 44, 2304.CrossRefGoogle Scholar
Richardson, G. H. & Nelson, J. H. (1967). J. Dairy Sci. 50, 1061.CrossRefGoogle Scholar
Sampugna, J., Quinn, J. G., Pitas, R. E., Carpenter, D. L. & Jensen, R. G. (1967). Lipids 2, 397.CrossRefGoogle Scholar
Siewert, K. L. & Otterby, D. E. (1968). J. Dairy Sci. 51, 1305.Google Scholar
Siewert, K. L. & Otterby, D. E. (1970). J. Dairy Sci. 53, 571.Google Scholar
Siewert, K. L. & Otterby, D. E. (1971). J. Dairy Sci. 54, 258.CrossRefGoogle Scholar
Smith, R. H. & Sissons, J. W. (1975). Br. J. Nutr. 33, 329.Google Scholar
Toothill, J., Thompson, S. Y. & Edwards-Webb, J. D. (1976). Br. J. Nutr. 36, 439.Google Scholar
Tuckley, B. & Storry, J. E. (1974). Lipids 9, 493.Google Scholar
Wise, G. H., Miller, P. G. & Anderson, G. W. (1940). J. Dairy Sci. 23, 997.Google Scholar
Wise, G. H., Miller, P. G. & Anderson, G. W. (1947). J. Dairy Sci. 30, 499.CrossRefGoogle Scholar