Analysis of the Seed Lipids of Aleurites montana
نویسنده
چکیده
A. Radunz3, P. Heb and G. H. Schmid3 a Lehrstuhl für Zellphysiologie, Fakultät für Biologie, Universität Bielefeld, Postfach 100131, D-33501 Bielefeld, Germany b Central South Forestry University, Zhuzhou/Hunan 41206, People’s Republic of China Z. Naturforsch. 53c, 305-310 (1998); received February 5/March 6 , 1998 Aleurites montana, Tung Oil, a-Eleostearic Acid, Triglycerides, Phospholipids The seed lipids of the Chinese tung-oil tree Aleurites montana are composed of 97.2% triglycerides, 2% phospholipids and of 0.8% glycolipids. In the triglycerides 67% of all fatty acids are a-eleostearic acid (configuration C18:3, A9 cis, A11 trans, A13 trans). This acid is bound in the triglycerides in the 1,3 position. Via mercury Il-acetate adducts and subsequent chromatography on silica gel a separation of this fatty acid from the seed fatty acids is possible. By this procedure an a-eleostearic acid-free tung-oil mixture is obtained, which consists by one half of Ci8:2, 25% of C 18:1 and by 25% of the saturated fatty acids C 16;0, C 18:0 and C|4:o-
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