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J Oleo Sci

Title:		Pedologic Factors Affecting Virgin Olive Oil Quality of 'Chemlali' Olive Trees (Olea europaea L.)
Author(s):		Rached MB; Galaverna G; Cirlini M; Boujneh D; Zarrouk M; Guerfel M;
Address:		"Laboratoire de Biotechnologie de l'Olivier, Centre de Biotechnologie de Borj Cedria. Department of Food Science, University of Parma, Parco Area delle Scienze. Institut de l'Olivier, Station de Sousse, Rue Ibn Khaldoun"
Journal Title:		J Oleo Sci
Year:		2017
Volume:		20170712
Issue:		8
Page Number:		907 - 915
DOI:		10.5650/jos.ess17066
ISSN/ISBN:		1347-3352 (Electronic) 1345-8957 (Linking)
Abstract:		"The aim of this study examined the characterization of extra virgin olive oil samples from the main cultivar Chemlali, grown in five olive orchards with different soil type (Sandy, Clay, Stony, Brown, Limestone and Gypsum). Volatile compounds were studied using headspace-solid phase micro-extraction (HS-SPME) and gas chromatography-mass spectrometry (GC-MS) technics. Moreover, the sterol profile was established using gas chromatography-mass spectrometry. 35 different volatile compounds were identified: alcohols, esters, aldehydes, ketones and hydrocarbons. The chemical composition of the volatile fraction was characterized by the preeminence of 2-hexenal (32.75%) and 1-hexanol (31.88%). Three sterols were identified and characterized. For all olive oil samples, ss-sitosterol (302.25 mg/kg) was the most abundant sterol. Interestingly, our results showed significant qualitative and quantitative differences in the levels of the volatile compounds and sterols from oils obtained from olive trees grown in different soil type"
Keywords:		Alcohols/isolation & purification Aldehydes/isolation & purification Esters/isolation & purification *Food Quality Gas Chromatography-Mass Spectrometry Hexobarbital/isolation & purification Hydrocarbons/isolation & purification Ketones/isolation & purific;
Notes:		"MedlineRached, Mouna Ben Galaverna, Gianni Cirlini, Martina Boujneh, Dalenda Zarrouk, Mokhtar Guerfel, Mokhtar eng Japan 2017/07/14 J Oleo Sci. 2017 Aug 1; 66(8):907-915. doi: 10.5650/jos.ess17066. Epub 2017 Jul 12"