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Stability of carotene at elevated and room temperatures

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Oil & Soap

Summary

An attempt has been made to evaluate the elevated temperature test used for carotene stability studies in this laboratory. The stability of carotene in edible oils containing various added antioxidants was determined by storage at 25° C. and in some cases 40° C. and compared with stability as determined by the accelerated test at 75° C. In general, the results obtained at 75° C. were in agreement with those obtained at 40° and 25° C. With most of the better antioxidants the protection found at the lower temperature was better than that indicated by the rapid test.

Solutions of carotene in edible oils, which ordinarily might lose a significant amount of carotene in a week or less at 25° C., can be protected by addition of antioxidants, and protection can be afforded for periods well over a year without such special precautions as refrigeration or storage under nitrogen or in evacuated containers. The effectiveness of nordihydroguaiaretic acid as an antioxidant for carotene has been confirmed by room-temperature storage tests.

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Authors and Affiliations

  1. Western Regional Research Laboratory, Albany, California

    Emanuel Bickoff & Kenneth T. Williams

Authors
  1. Emanuel Bickoff
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  2. Kenneth T. Williams
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Additional information

Bureau of Agricultural and Industrial Chemistry, Agricultural Research Administration, U. S. Department of Agriculture.

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Bickoff, E., Williams, K.T. Stability of carotene at elevated and room temperatures. Oil Soap 23, 65–68 (1946). https://doi.org/10.1007/BF02544145

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  • DOI: https://doi.org/10.1007/BF02544145

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