Lupinus mutabilisoil obtained by expeller press: Yield, physicochemical characterization, antioxidant capacity, fatty acids and oxidative stability analyses

The oil of debittered and dehulled grains from two Andean lupins (Lupinus mutabilis) Peru, Andenes Común,was extracted by expeller press. extraction yield the proximal composition both varieties were assessed. cake, as well defatted flour variety with highest yield, werecharacterised for physico-chemical properties, total polyphenol content antioxidant capacity. shelf-life at 25 °C was extrapolated Rancimat test. presented an 22.1% (vs. 18.4% Común),CIELAB colour coordinates L* = 36.5, a* 2.2, b* 20, refractive index density 25ºC 1.469 0.903 g/mL,acid number 3.2 mg KOH/g, free fatty acids 1.6%, peroxide 2.7 meqO2/kg, p-anisidine 1.3, unsaponificable 58%, capacity 21.4 μmol TE/g 7.0 AGE/100 g. predominant acid, tocopherol phytosterol in oleic acid (56.2%), γ-tocopherol (555 mg/kg) β-sitosterol (41900 mg/100 g), respectively. ºC years. Lupinus mutabilis acceptable quality a lower environmental negative impact than oils obtained solvent extraction.