title: Gas chromatography-mass spectrometry screening for phytochemical 4-desmethylsterols accumulated during development of Tunisian peanut kernels (Arachis hypogaea L.).
abstract: 4-Desmethylsterols, the main component of the phytosterol fraction, have been analyzed during the development of Tunisian peanut kernels ( Arachis hypogaea L.), Trabelsia (AraT) and Chounfakhi (AraC), which are monocultivar species, and Arbi (AraA), which is a wild species, by gas chromatography-mass spectrometry. Immature wild peanut (AraA) showed the highest contents of beta-sitosterol (554.8 mg/100 g of oil), campesterol (228.6 mg/100 g of oil), and Delta(5)-avenasterol (39.0 mg/100 g of oil) followed by peanut cultivar AraC with beta-sitosterol, campesterol, and Delta(5)-avenasterol averages of 267.7, 92.1, and 28.6 mg/100 g of oil, respectively, and similarly for AraT 309.1, 108.4, and 27.4 mg/100 g of oil, respectively, were found. These results suggest that, in immature stages, phytosterol contents can be important regulator factors for the functional quality of peanut oil for the agro-industry chain from plant to nutraceuticals.
authors.affiliation: Laboratory of Biochemistry of Lipids and Proteins, Department of Biology, Sciences University of Tunis, 2092 El Manar, Tunisia. aicha.echerif@gmail.com
authors.forename: Aicha O
authors.initials: AO
authors.lastname: Cherif
authors.forename: Hajer
authors.initials: H
authors.lastname: Trabelsi
authors.forename: Mhamed
authors.initials: M
authors.lastname: Ben Messaouda
authors.forename: Belhassen
authors.initials: B
authors.lastname: Kâabi
authors.forename: Isabelle
authors.initials: I
authors.lastname: Pellerin
authors.forename: Sadok
authors.initials: S
authors.lastname: Boukhchina
authors.forename: Habib
authors.initials: H
authors.lastname: Kallel
authors.forename: Claude
authors.initials: C
authors.lastname: Pepe
mesh_terms: D010367:Arachis / Q000737:chemistry* / Q000254:growth & development* / Q000378:metabolism; D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods*; D010840:Phytosterols / Q000032:analysis* / Q000378:metabolism; D010936:Plant Extracts / Q000032:analysis* / Q000378:metabolism; D012639:Seeds / Q000737:chemistry / Q000254:growth & development / Q000378:metabolism
chemical_list: D010840:Phytosterols; D010936:Plant Extracts