PHYSICO-CHEMICAL PROPERTIES OF BLENDS OF CORN OIL WITH CORIANDER SEED OIL

Abstract

The effects of different additions of coriander seed oil (10%, 20% and 30%) in the corn oil on the physico-chemical parameters like refractive index (RI), iodine value (IV), saponification value (SV), peroxid value (PV), acid value (AV) and oil viscosity were  investigated. It was found that the presence of coriander seed oil up to 30% in corn oil had an improving effect on quality parameters of the oil blends. The addition of coriander seed oil in corn oil caused a decrease in the refractive index, iodine value, saponification value and peroxid value with the increased mixing ratios (proportion) in the oil blends formulation. The viscosity of all oil samples analyzed by Brookfield viscometer appeared to remain constant regardless of the shear rates tested. The results suggest that coriander seed oil can contribute to improving quality of corn oil.