Purification of surcrose esters by selective adsorption

Autor: Zeringue, H. J., Feuge, R. O.
Zdroj: Journal of the American Oil Chemists' Society; September 1976, Vol. 53 Issue: 9 p567-571, 5p
Abstrakt: Long chain fatty acid esters of sucrose from the solvent-free, soap-catalyzed interesterification of molten sucrose and glycerides were acidulated to destroy the soaps, washed to remove unreacted sucrose, and freed of unreacted glycerides and free fatty acids by a procedure adaptable to large scale use. Separation of the glycerides and free fatty acids from the sucrose esters was accomplished by passing the product through selected adsorbents, up to a 1:2 ratio of product to adsorbent, and eluting with selected solvents. Effectiveness of the separations was monitored by thin layer chromatography. Neutral bleaching clay would be the adsorbent of choice for a large scale purification scheme employing benzene as the eluent for the removal of glycerides and free fatty acids followed with ethanol for removal of the sucrose esters.
Databáze: Supplemental Index