| Analytical evaluation of two monovarietal virgin olive oils cultivated in the south of Tunisia: Jemri-Bouchouka and Chemlali-Tataouin cultivars. | |
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MedLine Citation:
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PMID: 22936570 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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BACKGROUND: The characterisation of virgin olive oils from two Tunisian cultivars, growing in the Tataouin zone, namely Jemri-Bouchouka, a rare olive cultivar, and Chemlali-Tataouin, was carried out. Several analytical parameters were evaluated; these include quality index, fatty acids, phenolic, chlorophyll, carotenoid, squalene, α-tocopherol compositions and oxidative stability. RESULTS: Jemri-Bouchouka olive oil had the highest value of oleic acid (74.50%) while Chemlali-Tataouin was characterised by a high percentage of palmitic acid (14.75%), which makes this oil freeze at a low temperature. On the other hand, Jemri-Bouchouka oil was characterised by a low phenolic and α-tocopherol content (267.72 mg GAE kg(-1) and 278.34 mg kg(-1) , respectively). Ten phenolic compounds were identified. The main phenols found in the two olive oils were oleuropein aglycon and pinoresinol. All phenolic compounds showed significant correlations with oxidative stability. CONCLUSION: The analytical parameters of virgin olive oil that were determined in this study were greatly influenced by cultivar. Copyright © 2012 Society of Chemical Industry. |
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Authors:
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Ghayth Rigane; Maher Boukhris; Sami Sayadi; Ridha Ben Salem |
Publication Detail:
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Type: JOURNAL ARTICLE Date: 2012-8-30 |
Journal Detail:
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Title: Journal of the science of food and agriculture Volume: - ISSN: 1097-0010 ISO Abbreviation: J. Sci. Food Agric. Publication Date: 2012 Aug |
Date Detail:
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Created Date: 2012-8-31 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0376334 Medline TA: J Sci Food Agric Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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Copyright © 2012 Society of Chemical Industry. |
Affiliation:
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Laboratoire de Chimie Organique-Physique UR11ES74, Département de Chimie, Faculté des Sciences de Sfax, B.P. ≪1171≫, 3000, Sfax, Université de Sfax, Tunisia; Laboratoire des Bioprocédés Environnementaux, Centre de Biotechnologie de Sfax, B.P. ≪1177≫, 3018, Sfax, Université de Sfax, Tunisia. |
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