[Determination of the tocopherol content of the nonsaponifiable fraction of lupine oil (L. mutabilis)].
The content of individual tocopherols was determined in 11 samples of lupine oil (L. mutabilis) from Peru by GC- and HPLC-procedures. The main component is gamma-tocopherol (42-69 mg/100 g oil); alpha- and delta-tocopherol were found in traces (0.1-0.7 mg/100 g oil). The pretreatment of samples, necessary for the GC-methods leads to tocopherol losses of 30% on average, this loss is mainly caused by the saponification of the samples. The tocopherols are predominantly present in an unesterified state.
D002849:Chromatography, Gas; D002851:Chromatography, High Pressure Liquid; D007887:Fabaceae; D005231:Fatty Acids, Unsaturated / Q000032:analysis; D009821:Oils / Q000032:analysis*; D010946:Plants, Medicinal; D013261:Sterols / Q000032:analysis; D014810:Vitamin E / Q000032:analysis*
D005231:Fatty Acids, Unsaturated; D009821:Oils; D013261:Sterols; D014810:Vitamin E
Untersuchungen zur Bestimmung des Tocopherolgehalts im unverseifbaren Anteil von Lupinenöl (L. mutabilis).