SOME STUDIES IN RICE BRAN FATTY-ACID DISTILLATION RESIDUES

Residues obtainable from rice bran fatty acid distillation have been p repared. The high yield and unsaponifiable matter content of such resi dues (obtained by fat splitting and vacuum distillation) have been att ributed to waxes and those esters of phytosterols which are present in crude oil as ferulates and alkanoates. Additionally, a dry extraction technique has been developed to conveniently extract the unsaponifiab les from these residues. Preliminary investigations into the saponifia ble portion of the residue indicated that apart from oxidized/polymeri zed materials, it also contained a good proportion of fatty acids with a high lignoceric acid content.