Skip to main content

Determination of the oxidative stability of vegetable oils by rancimat and conductivity and chemiluminescence measurements

Abstract

The oxidative stability of five different oils was determined by Rancimat analysis with conductivity and chemiluminescence measurements for evaluation of the induction periods. Samples of oil, taken at intervals from the Rancimat apparatus, were used for chemiluminescence measurements. The chemiluminescence results were plotted vs. time, and the resulting curves were evaluated with a graphical tangential procedure in the same way as the curves of the Rancimat method (conductivity measurement). Induction periods of the oils assessed by Rancimat and chemiluminescence methods showed a significant linear correlation (r=0.9865). The temperature dependence of the induction periods evaluated by chemiluminescence and by conductivity was investigated with walnut oil. A marked temperature dependence was observed for both.

This is a preview of subscription content, access via your institution.

References

  1. 1.

    Official Methods and Recommended Practices of the American Oil Chemists’ Society, Vol. 1. American Oil Chemists’ Society, Champaign, 1980, Method Cd 12-57.

  2. 2.

    Hadorn, H., and K. Zürcher, Zur Bestimmung der Oxydationsstabilität von Ölen und Fetten,Dtsch. Lebensm. Rundsch. 70:57–65 (1974).

    CAS  Google Scholar 

  3. 3.

    Farag, R.S., S.A. Osman, S.A.S. Hallabo, and A.A. Nasr, Linoleic Acid Oxidation Catalyzed by Various Amino Acids and Cupric Ions in Aqueous Media,J. Am. Oil Chem. Soc. 55:703–707 (1978).

    CAS  Google Scholar 

  4. 4.

    Pardun, H., and E. Kroll, Bestimmung der Oxydationsstabilität von Ölen und Fetten mit Hilfe einer automatischen Version des Swift-Testes,Fette Seifen Anstrichm. 74:366–375 (1972).

    CAS  Article  Google Scholar 

  5. 5.

    Oxidationsstabilität von Ölen und Fetten—Rancimatmethode, Metrohm AG, Herisau, Application Bulletin Metrohm Nr. 204/1 d (1994).

  6. 6.

    Läubli, M.W., and P.A. Bruttel, Determination of the Oxidative Stability of Fats and Oils: Comparison Between the Active Oxygen Method (AOCS Cd 12-57) and the Rancimat Method,J. Am. Oil Chem. Soc. 63:792–795 (1988).

    Google Scholar 

  7. 7.

    Loury, M., Possible Mechanisms of Autoxidative RancidityLipids 7:671–675 (1972).

    CAS  Google Scholar 

  8. 8.

    de Man, J.M., F. Tie, and L. deMan, Formation of Short Chain Volatile Organic Acids in the Automated AOM Method,J. Am. Oil Chem. Soc. 64:993–996 (1987).

    Google Scholar 

  9. 9.

    Gordon, M.H., and E. Mursi, A Comparison of Oil Stability Based on the Metrohm Rancimat with Storage at 20°C,Ibid. 71:649–651 (1994).

    CAS  Google Scholar 

  10. 10.

    Jebe, T.A., M.G. Matlock, and Ronald T. Sleeter, Collaborative Study of the Oil Stability Index Analysis,Ibid. 70:1055–1061 (1993).

    CAS  Google Scholar 

  11. 11.

    Matthäus, B., C. Wiezorek, and K. Eichner, Fast Chemiluminescence Method for Detection of Oxidized Lipids,Fat Sci. Technol. 96:95–99 (1994).

    Google Scholar 

  12. 12.

    Matthäus, B., C. Wiezorek, and K. Eichner, Bestimmung von Hydroperoxiden in Fetten und Ölen durch Chemilumineszenz,Lebensmittelchemie 47:85–86 (1993).

    Google Scholar 

  13. 13.

    DGF Einheitsmethoden Deutsche Einheitsmethoden zur Untersuchung von Fetten, Fettprodukten, Tensiden und verwandten Stoffen, Deutsche Gesellschaft für Fettwissenschaften e.V., Münster, Wissenschaftliche Verlagsgesellschaft mbH Stuttgart, 1984, Methods C-VI 6a.

  14. 14.

    Yamamoto, Y., B. Frei, and B.N. Ames, Assy of Lipid Hydroperoxides Using High-Performance Liquid Chromatography with Isoluminol Chemiluminescence Detection,Methods in Enzymology 186:371–380 (1990).

    CAS  Article  Google Scholar 

  15. 15.

    Matthäus, B., Entwicklung einer Methode zum Nachweis der Autoxidation und der strahleninduzierten Oxidation fetthaltiger Lebensmittel mittels Chemilumineszenz, Ph.D. Thesis, University of Münster, 1992.

  16. 16.

    Gundermann, K.-D., and F. McCapra,Chemiluminescence in Organic Chemistry, Springer Verlag, Berlin, Heidelberg, New York, 1987.

    Google Scholar 

  17. 17.

    Silbert, L.S., Iodimetric Analysis of Dialkyl and Dicumenyl Peroxides,Analyst 117:745–749 (1992).

    CAS  Article  Google Scholar 

  18. 18.

    Methrohm Rancimat 617: Instruction for Use, Metrohm AG, Herisau.

  19. 19.

    Schulte, E., and K. Weber, Schnelle Herstellung der Fettsäuremethylester aus Fetten mit Trimethylsulfoniumhydroxid oder Natriummethylat,Fat Sci. Technol. 91:181–183 (1989).

    CAS  Google Scholar 

  20. 20.

    Balz, M., E. Schulte, and H.P. Thier, Trennung von Tocopherolen und Tocotrienolen durch HPLC,Ibid. 94:209–213 (1992).

    CAS  Google Scholar 

  21. 21.

    Official Methods and Recommended Practices of the American Oil Chemists’ Society, Vol. 1, American Oil Chemists’ Society, Champaign, 1980. Method Cd 1c-85.

  22. 22.

    Conover, W.J.,Practical Nonparametric Statistics, John Wiley & Sons Inc., New York, 1971, pp. 248–253.

    Google Scholar 

  23. 23.

    Statgrafics ® Statgraphics Statistical Graphics System, Version 4.0, STSC, Inc. and Statistical Graphics Corporation 1985–1989.

  24. 24.

    Hill, S.E., and E.G. Perkins, Determination of Oxidation Stability of Soybean Oil with the Oxidative Stability Instrument: Operation Parameter Effects,J. Am. Oil Chem. Soc. 72:741–743 (1995).

    CAS  Google Scholar 

  25. 25.

    Mörsel, J.-Th., and D. Meusel, Fortschrittsbericht Lipidperoxydation 2. Mitt. Sekundäre Reaktionen,Die Nahrung 34: 13–27 (1990).

    Article  Google Scholar 

  26. 26.

    Nawar, W.W., and A. Witchwoot, Autoxidation of Fats and Oils at Elevated Temperatures, inAutoxidation in Food and Biological Systems, edited by M.G. Simic and M. Karel, Plenum Press, New York 1980, pp. 207–221.

    Google Scholar 

Download references

Author information

Affiliations

Authors

Corresponding author

Correspondence to Bertrand W. Mathäus.

About this article

Cite this article

Mathäus, B.W. Determination of the oxidative stability of vegetable oils by rancimat and conductivity and chemiluminescence measurements. J Am Oil Chem Soc 73, 1039–1043 (1996). https://doi.org/10.1007/BF02523413

Download citation

Key Words

  • Chemiluminescence
  • conductivity
  • induction period
  • oxidative stability
  • Rancimat
  • rapeseed oil
  • safflower oil
  • sunflower oil
  • vegetable oils
  • walnut oil