title: Lipids, proteins, phenolic composition, antioxidant and antibacterial activities of seeds of peanuts (Arachis hypogaea l) cultivated in Tunisia.
abstract: Fatty acid composition of peanut seed oil in four varieties cultivated in Tunisia showed that linoleic (C18:2), oleic (C18:1) and palmitic (C16) acids account for more than 84% for Chounfakhi and Massriya and for more than 85% of the total fatty acids of Trabilsia and Sinya seed oil respectively. Seed oil contents were significantly different (P ≤ 0.05) and did not exceed 48%. The study of total phenolics revealed that Chounfakhi contained more total phenolics (2.1 mg GAE/g DW), followed by the Massriya and Sinya cultivars (1.35 mg GAE/g DW for each); Trabilsia presented the lowest total phenolic content with 1 mg GAE/g DW. Considerable antiradical ability was found, especially in the Trabilsia peanut seed cultivar (IC50 = 1550 μg/ml), the Massriya and Sinya cultivars had, respectively, 720 and 820 mg/ml IC50. In the Massriya variety the sterol fraction showed antibacterial activity against Listeria ivanovii, Listeria inocua, Pseudomonas aeruginosa, Staphylococus aureus, Enterococcus hirae and Bacillus cereus.
authors.affiliation: Laboratoire de Biochimie des Lipides et Interactions avec les Macromolécules, , Faculté des Sciences de Tunis, Université de Tunis-El-Manar, Tunisia.
authors.forename: Khaled
authors.initials: K
authors.lastname: Sebei
authors.affiliation: Laboratoire de Biochimie des Lipides et Interactions avec les Macromolécules, , Faculté des Sciences de Tunis, Université de Tunis-El-Manar, Tunisia.
authors.forename: Asma
authors.initials: A
authors.lastname: Gnouma
authors.affiliation: Laboratoire de Biochimie des Lipides et Interactions avec les Macromolécules, , Faculté des Sciences de Tunis, Université de Tunis-El-Manar, Tunisia.
authors.forename: Wahid
authors.initials: W
authors.lastname: Herchi
authors.affiliation: Laboratoire de Biochimie des Lipides et Interactions avec les Macromolécules, , Faculté des Sciences de Tunis, Université de Tunis-El-Manar, Tunisia.
authors.forename: Faouzi
authors.initials: F
authors.lastname: Sakouhi
authors.affiliation: Laboratoire de Biochimie des Lipides et Interactions avec les Macromolécules, , Faculté des Sciences de Tunis, Université de Tunis-El-Manar, Tunisia.
authors.forename: Sadok
authors.initials: S
authors.lastname: Boukhchina
mesh_terms: D000900:Anti-Bacterial Agents / Q000302:isolation & purification / Q000494:pharmacology*; D000975:Antioxidants / Q000302:isolation & purification / Q000494:pharmacology*; D005227:Fatty Acids / Q000032:analysis*; D006090:Gram-Negative Bacteria / Q000187:drug effects; D006094:Gram-Positive Bacteria / Q000187:drug effects; D008041:Linoleic Acids / Q000032:analysis; D008826:Microbial Sensitivity Tests; D019301:Oleic Acid / Q000032:analysis; D019308:Palmitic Acid / Q000032:analysis; D000074241:Peanut Oil; D010636:Phenols / Q000032:analysis*; D010938:Plant Oils / Q000737:chemistry / Q000494:pharmacology*; D012639:Seeds / Q000737:chemistry; D014416:Tunisia
chemical_list: D000900:Anti-Bacterial Agents; D000975:Antioxidants; D005227:Fatty Acids; D008041:Linoleic Acids; D000074241:Peanut Oil; D010636:Phenols; D010938:Plant Oils; D019301:Oleic Acid; D019308:Palmitic Acid