Unexploited Thapsia garganica, Orlaya maritima, and Retama raetam Seeds: Potential Sources of Unsaturated Fatty Acid and Natural Antioxidants. (27th June 2015)

• Record Type: Journal Article
• Authors: Tlili, Nizar; Mejri, Houda; Lajnef, Houda Ben; Feriani, Anouer; Khaldi, Abdelhamid; Nasri, Nizar
• Is Part Of: Journal of the American Oil Chemists' Society. Volume 92:Number 8(2015)
• Page Start: 1175
• Page End: 1181
• Publication Date: 2015-06-27
• Subjects: Unexploited seeds -- Oil -- Fatty acids -- Phenolic acids -- Flavonoids -- Antioxidant activity; Oils and fats -- Periodicals; Soap -- Periodicals; Fats -- Periodicals; Food-Processing Industry -- Periodicals; Acides gras -- Périodiques; Aliments -- Industrie et commerce -- Périodiques; Huiles et graisses -- Périodiques; Savon -- Périodiques; Oliën; Chemie; Oils and fats; Soap; Periodicals; 547.77
• DOI: 10.1007/s11746-015-2673-9
• Languages: English
• ISSNs: 0003-021X

Abstract

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 −1 g 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.