Journal of the American Oil Chemists Society

, Volume 31, Issue 11, pp 451–455

Simultaneous recovery of wax and oil from rice bran by filtration-extraction


  • Joseph Pominski
    • Southern Regional Research Laboratory
  • P. H. Eaves
    • Southern Regional Research Laboratory
  • H. L. E. Vix
    • Southern Regional Research Laboratory
  • E. A. Gastrock
    • Southern Regional Research Laboratory

DOI: 10.1007/BF02638549

Cite this article as:
Pominski, J., Eaves, P.H., Vix, H.L.E. et al. J Am Oil Chem Soc (1954) 31: 451. doi:10.1007/BF02638549


Hard rice waxes of high melting points have been obtained directly from rice bran while simultaneously producing oil. These waxes were produced by the following two methods. 1. selective cold hexane-extraction of cooked rice bran to remove the oil, hot hexane-extraction to remove the wax, chilling of the hot miscella and separation of the precipitated wax by centrifugation; 2. single hot hexane-extraction of raw or cooked rice bran, hot water washing and chilling of the miscella, separation of the wax precipitate by settling or centrifugation, and multiple cold hexane-washings of the wax. Wax can also be processed from rice oil settlings by the latter method after a miscella has been prepared. The cold extraction-hot extraction method should be preferable as a process when conducted on a single continuous filtration-extraction unit without reslurrying. Indications are that oil refining losses may be decreased by this method. Yields of rice wax varied from 0.22 to 0.31% of the original rice bran, or 1.29 to 1.82% of the extracted oil.

Download to read the full article text

Copyright information

© American Oil Chemists’ Society 1954