title: Volatile and lipid analyses by gas chromatography/mass spectrometry and nutraceutical potential of edible wild Malva aegyptiaca L. (Malvaceae).
abstract: Volatile and lipid chemical compositions, and nutritional and antioxidant properties of Malva aegyptiaca, an edible wild plant largely distributed in North Africa, were investigated. Forty-nine compounds of volatiles were identified showing large qualitative and quantitative differences during three phenological stages. The flowering stage was characterized by the presence of a high number of terpenic compounds, among them dillapiole was found to be the major one (55.15%). The nutrient composition of leaves and fruits was investigated in the present work. Fruits' lipidic fraction was characterized by its high level of linoleic acid (n-6) (36.17%). Interestingly, leaves' lipidic fraction was characterized by its very high content of camphor (43.69%) and by its relatively high content of linoleinic acid (n-3) (14.69%). Furthermore, our results showed that the phenolic contents varied from 352 to 404 mg gallic acid equivalent/g ethanolic and acetonic extracts, respectively. These extracts revealed interesting antioxidant activities including free radical scavenging activity (EC(50) = 0.38-0.57 mg/ml) and reducing power (EC(50) = 0.12-0.18 mg/ml).
authors.affiliation: Laboratoire de Biochimie et de Génie Enzymatique des Lipases, Ecole Nationale d'Ingénieurs de Sfax (ENIS), Sfax, Tunisia. znacim2002@yahoo.fr
authors.forename: Nacim
authors.initials: N
authors.lastname: Zouari
authors.forename: Nahed
authors.initials: N
authors.lastname: Fakhfakh
authors.forename: Sami
authors.initials: S
authors.lastname: Zouari
authors.forename: Mohamed
authors.initials: M
authors.lastname: Sellami
authors.forename: Mouna
authors.initials: M
authors.lastname: Abid
authors.forename: M A
authors.initials: MA
authors.lastname: Ayadi
authors.forename: Slah
authors.initials: S
authors.lastname: Zaidi
authors.forename: Mohamed
authors.initials: M
authors.lastname: Neffati
mesh_terms: D000352:Africa, Northern; D000975:Antioxidants / Q000032:analysis*; D004041:Dietary Fats / Q000032:analysis; D019587:Dietary Supplements / Q000032:analysis*; D005227:Fatty Acids / Q000032:analysis*; D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods; D028501:Malva / Q000737:chemistry*; D009753:Nutritive Value; D009822:Oils, Volatile / Q000032:analysis*; D010636:Phenols / Q000032:analysis*; D010936:Plant Extracts / Q000737:chemistry; D010938:Plant Oils / Q000032:analysis*; D018514:Plant Structures / Q000737:chemistry; D010945:Plants, Edible; D013729:Terpenes / Q000032:analysis
chemical_list: D000975:Antioxidants; D004041:Dietary Fats; D005227:Fatty Acids; D009822:Oils, Volatile; D010636:Phenols; D010936:Plant Extracts; D010938:Plant Oils; D013729:Terpenes