Journal of the American Oil Chemists’ Society

, Volume 73, Issue 9, pp 1121–1125

Ethanol extraction of polyphenols in an immersion extractor. Effect of pulsing flow

Authors

  • J. Sineiro
    • Department of Chemical EngineeringUniversity of Santiago de Compostela
  • H. Domínguez
    • Department of Chemical EngineeringUniversity of Santiago de Compostela
  • M. J. Núñez
    • Department of Chemical EngineeringUniversity of Santiago de Compostela
  • J. M. Lema
    • Department of Chemical EngineeringUniversity of Santiago de Compostela
Article

DOI: 10.1007/BF02523372

Cite this article as:
Sineiro, J., Domínguez, H., Núñez, M.J. et al. J Am Oil Chem Soc (1996) 73: 1121. doi:10.1007/BF02523372

Abstract

A comparative study on polyphenol extraction from sunflower press cake in a semicontinuous pulsed-flow immersion extractor and in a conventional laboratory immersion extractor was developed. The solvent was 96% (vol/vol) ethanol. No difference in the residual polyphenol content in the cake was observed at short times, but after 10 h, the pulsed extractor showed a higher polyphenol concentration in the outlet miscella. In addition, the effective diffusivity of polyphenols in sunflower press cake was estimated.

Key Words

Diffusivityextractionpolyphenolspulsed extractor

Copyright information

© AOCS Press 1996