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Comparison of antioxidants for fats on an equivalent molar basis

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Journal of the American Oil Chemists Society

Summary

An oven incubation method for determining the relative effectiveness of antioxidants is described, which has yielded results with an over-all average variation of 2.07%. The antioxidants were compared on an equivalent molar basis, and potencies are expressed as a “catechol index”.

The catechol index of a given antioxidant is defined as the ratio of its antioxidant activity to that of an equivalent molar concentration of catechol. It provides a quantitative measure of the relative effectiveness of various antioxidants, which takes into consideration the concentration of antioxidant, the induction periods of the stabilized sample and control substrate, and, at least to some extent, the substrate used.

Catechol indexes of 28 phenolic compounds are given and discussed, and several relationships between structure and antioxygenic activity are pointed out.

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Author information

Author notes

  1. C. W. Everson

    Present address: Universal Oil Products Company, Des Plaines, Ill.

  2. G. J. Miller

    Present address: Department of Agricultural Chemistry, University of Wyoming, Laramie, Wyo

Authors and Affiliations

  1. Department of Biochemistry, Purdue University, Lafayette, Indiana

    C. W. Everson, G. J. Miller & F. W. Quackenbush

Authors
  1. C. W. Everson
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  2. G. J. Miller
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  3. F. W. Quackenbush
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Additional information

Journal paper no. 981, Purdue Agricultural Experiment Station.

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Everson, C.W., Miller, G.J. & Quackenbush, F.W. Comparison of antioxidants for fats on an equivalent molar basis. J Am Oil Chem Soc 34, 81–83 (1957). https://doi.org/10.1007/BF02638026

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  • DOI: https://doi.org/10.1007/BF02638026

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