In situ evaluation of the fruit and oil characteristics of the main Lebanese olive germplasm
2016
Shaḥādah, ʻAlī | Bitar, Ahmad El | Kadri, Aline | Choueiri, Elia | Nabbout, Rania | Youssef, Hiyam | Smeha, Maha | Awada, Ali | Chami, Ziad Al | Dubla, Eustachio | Trani, Antonio | Mondelli, Donato | Famiani, Franco
BACKGROUND: Very little information is available on the characteristics of the Lebanese olive germplasm. Therefore, the aim of this work was to evaluate the fruit and oil characteristics of the main Lebanese olive varieties (Aayrouni, Abou chawkeh, Baladi, Del and Soury) from two successive crop seasons (2010–2011). RESULTS: All of the genotypes had medium–high oil content in the fruit, indicating their suitability for oil production; Aayrouni had particularly high values. The variety Abou chawkeh also had a high pulp/pit ratio, which is a very desirable trait in table olives. For all the varieties the values of free fatty acids, peroxide values, absorbances in ultraviolet, fatty acid composition, sterol content and composition and erythrodiol + uvaol content of the oils were within the requirements of the International Olive Council's Trade Standard for extra virgin olive oil. The only exception was for the values of Δ‐7‐stigmastenol in 2011 in Soury and, especially, in Baladi, which were higher than 0.5%. In some cases, stearic and arachidic acids fluctuated around the maximum values allowed. CONCLUSION: The findings of this study provide a first picture of the main characteristics of olives and oils currently produced in Lebanon. © 2015 Society of Chemical Industry
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