PREPARATION OF C-14-LABELED FATTY AND ANACARDIC ACIDS FROM GINKGO-BILOBA

Acetate labeled with14C was infused into shoots of Ginkgo. Up to 16% of the radioactivity was incorporated into lipids. Most of it was found in the leaves and stems, but after 9 days, the lipids of roots also contained an appreciable amount of radioactivity. Radioactive palmitic, linoleic and other common acids were isolated as methyl esters; 5,11,14-20:3 and esters of similar type were isolated pure or together with their isomers of normal structure; anacardic acids were separated as such from the fatty esters. © 1969 The American Oil Chemists' Society.