Skip to main content
Log in

The influence of storage on the fatty acid content of cod liver oil

  • Published:
Oil & Soap

Summary

A study has been made of the change of fatty acid content of cod liver oils during storage. Thirty oils varying in acid content from 0.38% to 20.88% were procured in the open market. They represented three types of oils—medicinal, animal feeding and industrial oils. The samples of oil were stored at room temperature, in the dark, in three-fourths filled, four-ounce, amber, cork-stoppered bottles. The acid content was determined twelve times during a period of forty-two months. The acid content of each oil increased. The amount of increase varied from 7.42% for a sample of industrial oil with an initial acid content of 16.45% to 84.80% for a sample of animal feeding oil with an initial acid content of 0.99%. In general, the cod liver oils with initial high acid content showed a lower percentage increase in free fatty acids than oils with a low initial free fatty acid content.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

Bibliography

  1. Heyerdahl, P. M., Chronological synopsis of chemical researches on cod-liver oil, Cod Liver Oil and Chemistry, F. P. Möller, London, lxxi, (1895).

  2. Lewkowitsch, J. and G. H. Warburton, Chemical Technology and Analysis of Oils, Fats and Waxes, Sixth Edition, Vol. II, MacMillan & Co., London, 435 (1922).

    Google Scholar 

  3. Möller, F. P. Cod-Liver Oil and Chemistry, London (1895).

  4. Heyerdahl,P. M., New Chemical Researches on Cod-Liver Oil, Cod Liver Oil and Chemistry, F. P. Möller, London, xxxviii (1895).

  5. Pharmacopoeia of the United States. Tenth Decennial Revision, J. B. Lippincott Co., Philadelphia, 263 (1926).

  6. Holmes, A. D., W. B. Moore, J. S. Bennett and M. G. Pigott, Poultry Sci., 9, 164 (1930).

    CAS  Google Scholar 

  7. Jamieson, G. S., Vegetable Fats and Oils. The Chemical Catalog Co., Inc., New York (1932).

    Google Scholar 

  8. Davies, W. L. Oil and Fat Ind., 7, 427 (1930).

    CAS  Google Scholar 

  9. King, A. E., H. L. Roschen and W. H. Irwin. Oil and Soap, 10, 204 (1933).

    CAS  Google Scholar 

  10. Emery, J. A. U. S. Dept. Agriculture Bull. Animal Ind., 26th Annual Rpt. (1909).

  11. Kerr, R. H., and D. G. Sorber, J. Ind. & Eng. Chem., 15, 383 (1923).

    Article  CAS  Google Scholar 

  12. Emery, J. A., and R. R. Henley, J. Ind. & Eng. Chem., 14, 937 (1922).

    Article  CAS  Google Scholar 

  13. Robertson, F. R., and J. G. Campbell, Oil and Soap, 10, 146 (1933).

    CAS  Google Scholar 

  14. Holmes, A. D., W. Z. Clough and R. J. Owen, Oil and Fat Ind., 6, 15 (1929).

    CAS  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

About this article

Cite this article

Holmes, A.D., Tripp, F. & Menard, D.F. The influence of storage on the fatty acid content of cod liver oil. Oil Soap 11, 102–104 (1934). https://doi.org/10.1007/BF02543257

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF02543257

Keywords

Navigation