title: Comparison between several techniques of olive tree bark extraction (Tunisian Chemlali variety).
abstract: In order to better understand the chemical composition of the olive tree bark of Tunisian chemlali variety (Olea europaea cv. 'Chemlali'), this material was extracted by different ways. Compositions of extracts were used at best-selected conditions for each technique, and characterised using HPLC, LC/MS and GC-MS techniques. Analyses are conducted to an important variety of high carbon number compounds such as aliphatic compounds as nanocosane and heptacosane, and molecules with high value added tax (VAT) which can be classified as follows: diterpenes as phytol, triterpenes as squalene and also esters as Benzyl cinnamate. Hydrodistillation at high pressure seems to be a very common method to get a wide variety of compounds, the results are better than the ones obtained using supercritical fluid extraction and solvent extraction.
authors: a LEEE, ENIS , Sfax University , Sfax , Tunisia.
authors: Aimen
authors: A
authors: Issaoui
authors: b IPEIS , Sfax University , Sfax , Tunisia.
authors: Hatem
authors: H
authors: Ksibi
authors: a LEEE, ENIS , Sfax University , Sfax , Tunisia.|c ISBS , Sfax University , Sfax , Tunisia.
authors: Mohamed
authors: M
authors: Ksibi
mesh_terms: D002851:Chromatography, High Pressure Liquid; D025924:Chromatography, Supercritical Fluid; D008401:Gas Chromatography-Mass Spectrometry; D013058:Mass Spectrometry; D031658:Olea / Q000737:chemistry*; D010636:Phenols / Q000737:chemistry*; D024301:Plant Bark / Q000737:chemistry*; D010936:Plant Extracts / Q000737:chemistry*; D018515:Plant Leaves / Q000737:chemistry; D014416:Tunisia
chemical_list: D010636:Phenols; D010936:Plant Extracts
keywords: Olive tree bark; biophenols; chemical composition; extraction; hydrodistillation; supercritical fluid