Rey Muñoz, Ana IsabelLópez, C.Scares, M.Isabel Redondo, Beatriz2024-04-022024-04-021996-10-301988-42140017-349510.3989/gya.1996.v47.i5.877https://hdl.handle.net/20.500.14352/102540Extraction of α-tocopherol from pork samples with low (3%) (LF) or high (9%) (HF) amount of intramuscular fat have been carried out by three different methods, two of them based in saponification plus extraction of α-tocopherol and the other one without saponification. All samples were spiked with five different amount of α-tocopherol prior to analysis. In LF samples, recovery was in the range 85-95% in all cases, with not significant differences between methods. Recovery was much lower in HF samples when using methods which involve prior saponification of muscle samples (50-60%). Changes in KOH concentration did not improve markedly the recovery. The method based on direct extraction provided much better recovery in HF samples (85-92%) and consequently is recommended for samples high in fat.engAttribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/journal articlehttps://grasasyaceites.revistas.csic.es/index.php/grasasyaceitesopen access636.09Animal tissueComparison of methodsFata-tocopherol (determination)Producción animal3104 Producción Animal2301 Química Analítica