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

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.

Bibliographic Details

Main Authors:	Trabelsi, Hajer, Sakouhi, Faouzi, Renaud, Justin, Villeneuve, Pierre, Khouja, Mohamed Larbi, Mayer, Paul, Boukhchina, Sadok
Format:	article biblioteca
Language:	eng
Subjects:	Q04 - Composition des produits alimentaires, F60 - Physiologie et biochimie végétale, pistache, Pistacia lentiscus, acide gras, triterpénoïde, phytostérol, fruit (botanique), composition chimique, provenance, facteur du milieu, facteur édaphique, http://aims.fao.org/aos/agrovoc/c_13413, http://aims.fao.org/aos/agrovoc/c_23963, http://aims.fao.org/aos/agrovoc/c_2818, http://aims.fao.org/aos/agrovoc/c_32739, http://aims.fao.org/aos/agrovoc/c_5847, http://aims.fao.org/aos/agrovoc/c_3119, http://aims.fao.org/aos/agrovoc/c_1794, http://aims.fao.org/aos/agrovoc/c_16022, http://aims.fao.org/aos/agrovoc/c_2594, http://aims.fao.org/aos/agrovoc/c_15617, http://aims.fao.org/aos/agrovoc/c_8007,
Online Access:	http://agritrop.cirad.fr/565246/ http://agritrop.cirad.fr/565246/1/document_565246.pdf
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