Advertisement

Biological evaluation of hydrogenated rapeseed oil

  • G. A. Nolew
Technical

Abstract

A 91-day feeding study evaluated soybean oil, rapeseed oil, fully hydrogenated soybean oil, fully hydrogenated rapeseed oil, fully hydrogenated superglycerinated soybean oil and fully hydrogenated superglycerinated rapeseed oil at 7.5% of the diet in rats; a 16-wk feeding study evaluated soybean oil and the three rapeseed oils or fats at 15% of the diet. Each fat was fed to 40 rats as a mixture with soybean oil making up 20% of a semi-synthetic diet. No significant differences in body weight gains or diet-related pathology were seen in the 91-day study although the rats fed liquid rapeseed oil had slightly heavier hearts, kidneys and testes than the others. The rats fed the four fully hydrogenated fats ate more feed and had lower feed efficiencies than those fed oils but no differences were seen among the four hydrogenated fats. In the 16-wk feeding study, no pronounced pathology related to the diet was seen although the rats fed liquid rapeseed oil had a slightly higher incidence of histiocytic infiltration of cardiac muscle than the rats in the other groups. The female rats fed the three rapeseed oil fats gained significantly less weight and the females fed liquid rapeseed oil had enlarged hearts compared to the other groups. The absorbabilities of the six fats were measured in the 91-day study when fed as a mixture with soybean oil and as the sole source of dietary fat in a separate 15-day balance study. The four fully hydrogenated fats were poorly absorbed and the absorption of behenic acid from the two hydrogenated rapeseed oils was found to be 12% and 17% in the balance study and 8-40% in the feeding study. The adverse biological effects of unhydrogenated rapeseed oil containing erucic acid as reported in the literature do not occur with fully hydrogenated rapeseed oil. In addition, the low absorbability of the fully hydrogenated rapeseed oil is an added factor in its biological inertness.

Keywords

Erucic Acid Feed Consumption Behenic Acid Erucic Acid Content Histiocytic Infiltration 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Sanders, J.H., U.S. Patent 3,129,102, 1962.Google Scholar
  2. 2.
    Thomasson, H.J., and J. Boldingh, J. Nutr. 56:469 (1955).Google Scholar
  3. 3.
    Roine, P., E. Uksila, H. Teir and J. Rapola, Z. Ernährungswiss. 1: 118 (1960).CrossRefGoogle Scholar
  4. 4.
    Abdellatif, A.M.M., and R.O. Vles, Physiopathological Effects of Rapeseed Oil and Canbra Oil in Rats, Procedings, International Conference on the Science, Technology and Marketing of Rapeseed and Rapeseed Products, 1970, p. 423-434.Google Scholar
  5. 5.
    Beare-Rogers, J.L., E.A. Nera and H.A. Heggtveit, Nutr. Metab. 17: 213 (1974).Google Scholar
  6. 6.
    Rocquelin, G., D. Martin and R. Cluzan, Comparative Physiological Effects of Rapeseed and Canbra Oils in the Rat: Influence of the Ratio of Saturated to Monounsaturated Fatty Acids, Proceedings, International Conference on the Science, Technology and Marketing of Rapeseed and Rapeseed Products, 1970, p. 405-422.Google Scholar
  7. 7.
    Beare, J.L., J.A. Campbell, C.G. Youngs and B.M. Craig, Can. J. Biochem. Physiol. 41: 605 (1963).Google Scholar
  8. 8.
    Beare-Rogers, J.L., and E.A. Nera, Lipids 12(10): 769 (1977).CrossRefGoogle Scholar
  9. 9.
    Christiansen, E.N., M.S. Thomassen, R.Z. Christiansen, H. Osmundsen and K.R. Norum, Lipids 14(1O): 829 (1979).CrossRefGoogle Scholar
  10. 10.
    Zilversmit. D.B., and A.K. Davis, J. Lab. Clin. Med. 35:155 (1950).Google Scholar
  11. 11.
    Snedecor, G.W., and W.C. Cochran, Statistical Methods, Iowa State University Press, Ames, IA, 1967, ch. 10.Google Scholar
  12. 12.
    Scheffe, H., An Analysis of Variance for Paired Comparisons, J. Amer. Stat. Assoc. 47:381 (1952).CrossRefGoogle Scholar
  13. 13.
    Rocquelin, G., J.P. Sergiel, B. Martin, J. LeCler and R. Cluzan, JAOCS 48:728 (1970).Google Scholar
  14. 14.
    Beare, J.L., Food Mgtg. 32:378 (1957).Google Scholar
  15. 15.
    Abdellatif, A.M.M., and R.O. Vles, Nutr. Metab. 12: 285 (1970).Google Scholar
  16. 16.
    Beare-Rogers, J.L., Nutritional Aspects of Long-Chain Fatty Acids, Proceedings, International Conference on the Science, Technology and Marketing of Rapeseed and Rapeseed Products, St. Adele, Quebec, 1970, p. 450-465.Google Scholar
  17. 17.
    Mattson, F.H., and J.A. Streck, J. Nutr. 104:483 (1974).Google Scholar

Copyright information

© American Oil Chemists’ Society 1981

Authors and Affiliations

  • G. A. Nolew
    • 1
  1. 1.Miami Valley LaboratoriesThe Procter & Gamble CompanyCincinnati

Personalised recommendations