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Chemical characterization of Xanthoceras sorbifolia Bunge seed oil: Analysis of Fatty Acids, Sterols and Tocopherols

AutorRuiz Méndez, Mª Victoria ; Velasco, Joaquín
Fecha de publicación27-oct-2015
Citación13th Euro Fed Lipid Congress: Fats, Oils and Lipids: New Challenges in Technology, Quality Control and Health (2015)
ResumenXanthoceras sorbifolia Bunge (XS) is endemic oil trees to all over the North, East and Northwest China, which belongs to the Sapindaceae family, known as ¿Yellow Horn¿ or ¿Golden Horn¿. The oil ratio of seed is 30.4% and the kernel is 55%-66%. XS seed oil possesses as pharmaceutical potential as edible oil. The chemical profiles of XS seed oil samples have been characterized. Oil contains 8.1% of saturated fatty acids, mainly palmitic acid (5,2¿0,09%) and 43,0¿0,63 % of linoleic acid, as polyunsaturates. Oleic acid is the most abundant among monounsaturates with 29,03¿0,06 %, although oil is characterized by erucic acid, 9,16¿0,39 %; gondonic acid, 7,16¿0,14 %; and nervonic acid, 3,17¿0,13%. These fatty acid composition results in a Refractive Index of 1.468 and a Iodine Value of 113.3, lower than the limit for the use as raw material for biodiesel. The total sterol content found was 180,6¿3,46 mg/100g. Besides ¿-siterosterol (47,8%), Ä 7-Estigmastenol, with 32,3-0,54%, was the most abundant followed by Ä 7-Avenasterol, with 9,2-0,46%. XS oil is not very rich in tocopherols (0,395 mg/100g) compared to other seed oils; á- and g-tocopherol were found in similar 8-9%, but it is g-¿tocopherol the most abundant (80%), which confers stability to oils.
URIhttp://hdl.handle.net/10261/130095
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