Teucrium depressum seed oil: A new source of fatty acids with Δ--unsaturation

The seed oil ofTeucrium depressum Small yields two unusual trienoid components, all-cis-5,9,12-octadecatrienoic acid (6.7%) andtrans-5,cis-9,cis-12-octadecatrienoic acid (2.0%). A third unusual component, identified ascis-5,cis-9-octadecadienoic acid, also occurs in this oil as a trace constituent.