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Fatty acid composition of root and shoot samples of some Astragalus L. (Fabaceae) taxa growing in the east and southeast of Turkey

In this study the fatty acid composition of Astragalus species showed uniform fatty acid patterns. Palmitic and stearic acids were the major saturated and linoleic and linolenic acids were the major unsaturated fatty acids in the roots and shoots. | Turkish Journal of Biology http://journals.tubitak.gov.tr/biology/ Research Article Turk J Biol (2013) 37: 122-128 © TÜBİTAK doi:10.3906/biy-1203-2 Fatty acid composition of root and shoot samples of some Astragalus L. (Fabaceae) taxa growing in the east and southeast of Turkey Cumali KESKİN*, Semra KAÇAR Department of Nutrition and Dietetics, School of Health, Mardin Artuklu University, 47100 Mardin, Turkey Received: 02.03.2012 Accepted: 28.08.2012 Published Online: 10.01.2013 Printed: 01.02.2013 Abstract: The fatty acid compositions of root and shoot samples of some Astragalus L. (Fabaceae) taxa [A. gossypinus Fisch., A. amblolepis Fisch., A. edmondi (Kuntze) Sheld., A. tigridis Boiss., A. aleppicus Boiss., A. suberosus Banks & Sol. subsp. suberosus Banks & Sol., A. gummifer Labill., A. diphtherites Fenzl var. diphtherites Fenzl, and A. gymnalopecias Rech.f.] growing in the east and southeast of Turkey were determined by gas chromatography. Astragalus species contained palmitic (C 16:0) (20.13%–53.8%), linoleic (C 18:2ω6) (13.25%–41.06%), oleic (C 18:1ω-9) (5.78%–25.7%), linolenic (C 18:3ω-3) (6.1%–22.89%), and stearic acid (C 18:0) (5.16%–13.1%) in the roots and linolenic (8.9%–51.42%), palmitic (20.16%–44.88%), linoleic (7.34%–27.57%), oleic (2.45%–17.91%), and stearic acid (4.28%–8.31%) in the shoots as major components. In this study the fatty acid composition of Astragalus species showed uniform fatty acid patterns. Palmitic and stearic acids were the major saturated and linoleic and linolenic acids were the major unsaturated fatty acids in the roots and shoots. Key words: Fabaceae, Astragalus, fatty acids 1. Introduction Fabaceae is the second largest family based on species diversity (1), and it is represented by 400 species in 62 sections in Turkey (2). Astragalus species are spread widely throughout the temperate regions of the world (Europe, Asia, North America, South America, and mountains in Africa) (3,4). There are 3 forms of the Astragalus .