Variations in the phytosterol and tocopherol compositions and the oxidative stability in seed oils from four safflower ( C arthamus tinctorius L ) varieties grown in north‐eastern M orocco
2015; Wiley; Volume: 50; Issue: 10 Linguagem: Inglês
10.1111/ijfs.12879
ISSN1365-2621
AutoresAbdessamad Ben Moumen, Farid Mansouri, Gaëtan Richard, Marie‐Laure Fauconnier, Marianne Sindic, Abdelghani Nabloussi, Ahmed Elamrani, Hana Serghini-Caíd,
Tópico(s)Cholesterol and Lipid Metabolism
ResumoSummary Phytosterol and tocopherol contents and oxidative stability were evaluated from seeds oils of four safflower ( Carthamus tinctorius L ) varieties originating from S pain ( R ancho), I ndia ( S harda) and M orocco ( C artamar and C artafri), which were cultivated at the experimental station in O ujda (a semi‐arid region of eastern M orocco). Total phytosterols ranged from 3640 to 4140 mg kg −1 . GC analysis allowed the identification of nine compounds, of which β‐sitosterol was the major component. Total tocopherols ranged from 461.56 to 499.68 mg kg −1 . HPLC analysis allowed the identification of three compounds, α‐tocopherol (99.45%–98.84%), β‐tocopherol (0.94%–0.5%) and γ‐tocopherol (0.21%–0.01%). Oxidative stability study showed that S harda had the lowest induction period of 2.3 h compared with 7.18, 7 and 6.67 h for C artafri, R ancho and C artamar, respectively. Likewise, we established a positive correlation between the oxidative stability and γ‐tocopherol; however, this difference was not significant.
Referência(s)