EFFECT OF DIFFERENT ALKALI CONCENTRATIONS DURING THE REFINING PROCESS ON THE FATTY ACID COMPOSITION OF SUNFLOWER AND SOYBEAN OILS

Authors

  • S. A. El Kady
  • A. I. Abd El Gawwad
  • A. E. Kassem
  • M. I. Hamed
  • M. M. Rabie
  • R. Lásztity

Abstract

The effect of NaOH and KOH at concentrations of 12, 14 and 16 Bé° during the refining of sunflower and soybean oils on the fatty acid composition was studied using GLC technique. The quantity of linolenic, linoleic, oleic, palmitic and stearic acid as well as the USFA (unsaturated fatty acids): SFA (saturated fatty acids) ratio were measured. Only slight changes in the quantity of individual fatty acids were found particularly at higher alkali concentrations. The changes in the USFA : SFA ratio compared with crude or semirefined oil were not significant.

Keywords:

soybean oil, sunflower oil, refining, fatty acids, alkali treatment

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How to Cite

El Kady, S. A., Abd El Gawwad, A. I., Kassem, A. E., Hamed, M. I., Rabie, M. M., Lásztity, R. “EFFECT OF DIFFERENT ALKALI CONCENTRATIONS DURING THE REFINING PROCESS ON THE FATTY ACID COMPOSITION OF SUNFLOWER AND SOYBEAN OILS ”, Periodica Polytechnica Chemical Engineering, 37(3-4), pp. 147–152, 1993.

Issue

Vol. 37 No. 3-4 (1993)

Section

Articles