Oils obtained from olive pastes treated with 8 minute ultrasound improved Uslu oil yield 1.74% and the oil extractability 10.32%. Different sonication and malaxation time combinations did not induce difference (P˃0.05) in the Edremit oil yield and extractability indexes However, they were significantly different in Gemlik and Uslu oils. The extraction yield, free acidity, peroxide value, p-anisidin value, total oxidation value, K232 and K270, total phenol compound, the content of total chlorophyll and total carotenoid compounds were determined. In this study, the influence of malaxation time combined by ultrasound on the extraction yield, oxidative and quality characteristics of Extra Virgin Olive Oils extracted from of Edremit, Gemlik and Uslu cultivars were studied.
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