Abstract
ABSTRACT Characterization of virgin olive oils from two new olive cultivars obtained through controlled crossings on Meski variety was investigated. These two olive varieties have been selected among a progeny of 30 olive descendants after an evaluation of oil fatty acid composition and the content of their fruits. The study was achieved during the crop years 2001/2002 and 2002/2003. These two new cultivars (9D and 6H) had an improved oil composition compared to that of Chemlali, the dominant Tunisian olive oil variety; the latter is characterized by low rate of oleic acid and high rates of linoleic and palmitic acids. New cultivars are distinguished by: (1) good content of total phenols and oil yield; (2) a balanced fatty acid composition; and (3) a good content of OOO and a relatively low ΔECN42 as compared to that of Chemlali.
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