Fatty acids, 4-desmethylsterols, and triterpene alcohols from Tunisian lentisc (Pistacia lentiscus) fruits

Trabelsi Hajer, Sakouhi Faouzi, Renaud Justin, Villeneuve Pierre, Khouja Mohamed Larbi, Mayer Paul, Boukhchina Sadok. 2012. Fatty acids, 4-desmethylsterols, and triterpene alcohols from Tunisian lentisc (Pistacia lentiscus) fruits. European Journal of Lipid Science and Technology, 114 (8) : 968-973.

Quartile : Q2, Sujet : FOOD SCIENCE & TECHNOLOGY / Quartile : Q2, Sujet : NUTRITION & DIETETICS

Résumé : A comparative study was performed to determine the fatty acid, 4-desmethylsterol and triterpenic alcohols compositions of three different Tunisian populations of Pistacia lentiscus fruit Rimel (RM), Korbous (KO), and Tebaba (TB). Fruits are rich in lipids, which varied from 39.37% (KO) to 42.48% (TB) on a dry weight basis. Qualitatively, fatty acid, sterol, mono- and dimethylsterol composition is identical for all populations. Oleic acid was the major fatty acid for all samples, accounting from 40.49% in TB population to 50.72% in RM population followed by the palmitic and linoleic acids. Other fatty acids are present at lower levels. Total sterol amount varied from 109.72 mg/100 g of oil (KO) to 434.26 mg/100 g of oil (RM) with an average of 248.74 mg/100 g of oil. The major 4-desmethylsterol component in all studied Tunisian populations of P. lentiscus oil was ß-sitosterol followed by campesterol in TB and KO, and by stigmasterol in RM. The amount of total triterpenic alcohols varied from 42.39 mg/100 g of oil in RM population to 70.41 mg/100 g oil in TB population. The quantitative difference in the fatty acids and 4-desmethylsterols of the different populations studied could be due to the effect of geographic region and soil type.

Mots-clés Agrovoc : pistache, Pistacia lentiscus, acide gras, triterpénoïde, phytostérol, fruit (botanique), composition chimique, provenance, facteur du milieu, facteur édaphique

Mots-clés géographiques Agrovoc : Tunisie

Classification Agris : Q04 - Composition des produits alimentaires
F60 - Physiologie et biochimie végétale

Champ stratégique Cirad : Axe 3 (2005-2013) - Alimentation accessible et de qualité

Auteurs et affiliations

• Trabelsi Hajer, Faculté des sciences de Tunis (TUN)
• Sakouhi Faouzi, Faculté des sciences de Tunis (TUN)
• Renaud Justin, University of Ottawa (CAN)
• Villeneuve Pierre, CIRAD-PERSYST-UMR IATE (FRA) ORCID: 0000-0003-1685-1494
• Khouja Mohamed Larbi, INRGREF (TUN)
• Mayer Paul, University of Ottawa (CAN)
• Boukhchina Sadok, Faculté des sciences de Tunis (TUN)

Source : Cirad - Agritrop (https://agritrop.cirad.fr/565246/)

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