Deacidification of lampante olive oil

ABSTRACT

Deacidification of lampante olive oil by anion exchange resin and aluminum oxide was investigated. The experimental results proved that it is feasible to obtain a refined olive oil with free fatty acids less than 0.3% using anion exchange column. Efficiency of anion exchange resin as a deacidification material was 4 times as that of the aluminum oxide. Peroxides of the investigated olive oil were decomposed by heat treatment of the deacidified oil in presence of a stream of N[2]. K[232], K[270] and delta-K of the refined olive oil were 2.37,0.89 and 0.02, respectively. The results revealed that the untreated olive oil and the oil constituents that retained on the resin exhibited an efficient cytotoxicity against breast carcinoma cell line [MCF7] with IC[50] values of 61.1 and 70.5 micro g, respectively, while deacidified oil did not maintain this property