%0 Journal Article
%T Prospects of fatty acid profile and bioactive composition from lipid seeds for the discrimination of apple varieties with the application of chemometrics
%A Arain
%A S.
%A Sherazi
%A S. T.H.
%A Bhanger
%A M. I.
%A Memon
%A N.
%J Grasas y Aceites
%D 2012
%I Consejo Superior de Investigaciones Cient¨ªficas
%R 10.3989/gya.082811
%X The extracted oils from four apple seed varieties (Royal Gala, Red Delicious, Pyrus Malus and Golden Delicious) from Pakistan were investigated for their fatty acid profiles and lipid biactives by GC-MS. The oil contents in the seeds of the apple varieties ranged from 26.8-28.7%. The results revealed that linoleic acid (40.5-49.6%) was the main fatty acid in the Royal Gala, Red Delicious and Pyrus Malus seeds, and oleic acid (38.7-45.5%) was the main fatty acid in the Golden Delicious seeds. Palmitic acid (6.1-7.4%) and stearic acid (2.0-3.1%) were the dominant saturated fatty acids, besides the small amount of palmitoleic, heptadecanoic, linolenic, archidic, eicosanoic, and behenicacids. Sterols, tocopherols, hydrocarbons and some other minor components were also identified from the unsaponifiable lipid fraction. The variation among the results of both fatty acids and lipid bioactives for the four different varieties was assessed by principal component analysis, discriminant analysis and cluster analyses. The results conclude that both oil fractions could be applied as a useful tool to discriminate among the apple seed varieties. Se ha estudiado el perfil de ¨¢cidos grasos y l¨ªpidos biactivos mediante GC-MS del aceite extra¨ªdo de semillas de cuatro variedades de manzanas de Pakist¨¢n (Royal Gala, Red Delicious, Pyrus Malus y Golden Delicious). El contenido de aceite en las semillas de las variedades de manzanas estudiadas oscilaron desde 26,8 hasta 28,7%. Los resultados mostraron que el ¨¢cido linoleico (40.5-49.6%) fue el principal ¨¢cido graso de las semillas de las variedades Royal Gala, Red Delicious y Pyrus Malus, y el ¨¢cido oleico (38,7-45,5%) fue el principal ¨¢cido graso de Golden Delicious. Los ¨¢cidos palm¨ªtico (6.1-7.4%) y este¨¢rico (2,0-3,1%) fueron los ¨¢cidos grasos saturados predominantes, las semillas conten¨ªan tambi¨¦n peque as cantidades de palmitoleico, heptadecanoico, linol¨¦nico, araqu¨ªdico, eicosanoico, y beh¨¦nico. Esteroles, tocoferoles, hidrocarburos, y otros componentes menores tambi¨¦n fueron identificados a partir de la fracci¨®n insaponificable. La variaci¨®n de los resultados de ambos, ¨¢cidos grasos y l¨ªpidos bioactivos, de cuatro variedades diferentes se evalu¨® mediante an¨¢lisis de componentes principales, an¨¢lisis discriminante y an¨¢lisis de cluster. Los resultados concluyen que las dos fracciones lip¨ªdicas de semillas de manzanas podr¨ªan aplicarse como una herramienta ¨²til para distinguir variedades.
%K Apple seed varieties
%K Chemometrics
%K Crude oil extraction
%K Fatty acid composition
%K Lipid bioactives
%K Composici¨®n de ¨¢cidos grasos
%K Extracci¨®n de aceite
%K L¨ªpidos bioactivos
%K Quimiometr¨ªa
%K Semillas de variedades de manzanas
%U http://grasasyaceites.revistas.csic.es/index.php/grasasyaceites/article/view/1364/1361