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  • Title: Quality and Composition of Virgin Olive Oil from Varietties Grown in Castilla-La Mancha (Spain).
    Author: Alvarruiz A, Álvarez-Ortí M, Mateos B, Sena E, Pardo JE.
    Journal: J Oleo Sci; 2015; 64(10):1075-82. PubMed ID: 26369595.
    Abstract:
    The regulated physicochemical quality parameters (free acidity, peroxide value and UV absorption characteristics), sensory parameters (median of fruity, median of defect, panel classification, bitterness and pungency), stability parameters (total phenols and oxidative stability at 100°C) and chemical composition (fatty acids, sterols and triterpenic dialcohols) of virgin olive oils obtained from 12 olive varieties cultivated in 6 of the most representative zones of Castilla-La Mancha (La Alcarria, Campos de Calatrava, Campos de Hellín, Campos de Montiel, Montes de Toledo and Sierra de Alcaraz) were evaluated. The varieties Cornicabra and Picual showed remarkable total polyphenols content and high stability, in contrast with Arbequina. The other less common varieties were in-between these two groups. Cornicabra and Picual showed also high oleic and low linoleic acids content, while Arbequina showed low oleic, high linoleic high palmitic and high palimitoleic acid content. The varieties Benizal and Cornicabra showed very high campesterol content. Benizal stood out by its high stigmasterol, low apparent β-sitosterol and low total sterols content, and the latter was below the established limit for olive oil. Triterpenic dialcohol content was significantly lower for Arbequina than for Cornicabra.
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