Fatty acids of the seeds of Origanum onites L. and O. vulgare L.

Seed oils of Origanum onites L. from the Antalya and Mugla regions and O. vulgare L. from the Kirklareli region of Turkey were extracted with hexane in a Soxhlet apparatus. The oil yields were 14.1-20.0 and 18.5%, respectively. FA compositions of the seed oils were determined by GC and GC/MS. Twenty FA were identified in both O. onites and O. vulgare seeds. The major FA of both species were linolenic (56.3-57.0%; 61.8%), linoleic (21.5-21.7%; 18.8%), oleic (8.7-8.9%; 5.9%), palmitic (5.9-6.5%; 5.5%), stearic (2.1-2.4%; 2.1%), and (Z)-11-octadecenoic (0.6-0.8%; 0.5%), respectively.