Journal of the American Oil Chemists’ Society

, Volume 70, Issue 9, pp 837–841

Behavior of chlorophyll derivatives in canola oil processing

  • Kiyoji Suzuki
  • Akira Nishioka

DOI: 10.1007/BF02545340

Cite this article as:
Suzuki, K. & Nishioka, A. J Am Oil Chem Soc (1993) 70: 837. doi:10.1007/BF02545340


Chlorophyll derivatives in canola oil were analyzed quantitatively by reversed-phase high-performance liquid chromatography without any pretreatment. The main components were pheophytin (pheo) a and b and pyropheophytin (pyro) a and b. The factors affecting the types and concentration of chlorophyll derivatives in oil have been investigated during seed preparation, expelling, extraction, degumming and alkali-refining processes. Bleaching tests of alkali-refined canola oil with activated earth indicated the adsorption of each derivative to decrease in the following order: pheo a > pyro a >> pheo b > pyro b. In bleaching with activated carbon, however, the following order was observed: pyro b > pheo b > pheo a > pyro a.

Key words

Adsorption isotherms bleaching canola oil chlorophyll derivatives pheophytin a pheophytin b pyropheophytin a pyropheophytin b refining process seed preparation 

Copyright information

© the American Oil Chemists’ Society 1993

Authors and Affiliations

  • Kiyoji Suzuki
    • 1
  • Akira Nishioka
    • 1
  1. 1.Toyo Oil Mills Co., Inc.Chiba-shiJapan

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