SATURATED STEROLS (STANOLS) IN UNHYDROGENATED AND HYDROGENATED EDIBLEVEGETABLE-OILS AND IN CEREAL LIPIDS

The content of saturated sterols (stanols) was investigated in a small number of samples of hydrogenated fats and oils, and in the 'free' an d 'bound' lipids of various samples of cereals. The sterols, after sap onification of the total lipids, were analysed as trimethylsilyl deriv atives by GC and identified by GC-MS. Among the hydrogenated fats and oils, coconut oil contained the largest amounts of sitostanol followed by soybean oil (c 80 and 20 g kg(-1) of total unsaponifiables, respec tively). No sitostanol could be detected in hydrogenated palm oil unde r the present analytical conditions. Both 'free' and 'bound' lipids in various samples of wheat, except for wheat germ, contained c 70-120 g kg(-1) campestanol and 100-150 g kg(-1) sitostanol in total unsaponif iables. In lipids of oats and barley, no campestanol or sitostanol cou ld be detected. Rye total lipids contained 60-90 g kg(-1) of campestan ol and 100-150 g kg(-1) of sitostanol of total unsaponifiables in 'fre e' and 'bound' lipids, respectively.