Unexploited Thapsia garganica,Orlaya maritima,and Retama raetam Seeds: Potential Sources of Unsaturated Fatty Acid and Natural Antioxidants |
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| Authors: | Nizar Tlili Houda Mejri Houda Ben Lajnef Anouer Feriani Abdelhamid Khaldi Nizar Nasri |
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| Affiliation: | 1. , Laboratoire de Biochimie, Département de Biologie, Faculté des Sciences de Tunis, Université Tunis El‐Manar, Tunis, Tunisia;2. , Institut National de Recherches en Génie Rural, Eaux et Forêts (INRGREF), Université de Carthage, Ariana, Tunisia;3. , Laboratoire des Substances Bioactives, Centre de Biotechnologie à la Technopole de Borj‐Cédria (CBBC), Hammam‐Lif, Tunisia;4. , Unité de Biochimie Macromoléculaire et Génétique, Faculté des Sciences de Gafsa, cité Zarroug, Université de Gafsa, Gafsa, Tunisia |
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| Abstract: | Total lipid contents, fatty acid compositions, phenolic profiles and antioxidants activities of seeds from Thapsia garganica, Orlaya maritima, and Retama raetam were investigated. The oil values were more than 26 %, except seeds of R. raetam (ca. 3 %). Unsaturated fatty acids accounted for the majority of the fatty acids (more than 75 %). Oleic and linoleic acid were the predominant fatty acids. Total phenolic compounds (24–104 mg GAE g?1 DR), total flavonoids (4–102 mg QE g?1g DR), total tannins (28–85 mg GAE g?1 DR) and condensed tannins (0.62–131 mg CE g?1 DR) were also determined. The antioxidant activities using different assays were evaluated. The predominant detected classes were the phenolic acids (42–85 %) and the flavonoids (11–48 %). The major phenolic acids were caffeic, trans‐4‐hydroxy‐3‐methoxycinnamic, p‐coumaric, and gallic acid. The predominant flavonoids were quercetin, luteolin, naringin, apigenin, and kaempferol. This study brings attention to the medicinal importance of these species as a source of oil and antioxidant molecules. |
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| Keywords: | Unexploited seeds Oil Fatty acids Phenolic acids Flavonoids Antioxidant activity |
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