The essential oil of Hypericum perforation L,Hypericum tetrapterum Fries and Hypericum olympicum L growing in Greece

摘要

The composition of the essential oils of the Hypericum perforation L.,Hypericum tetrapterum Fries and Hypericum olympicum L.is reported.GC-MS analyses showed alpha-pinene (21.0%) and 2-methyl-octane (12.6%) as the most abundant components of H.perforation,whilst alpha-copaene (11.3%) and alpha-longipinene (9.7%) were the major constituents of H.tetrapterum;those of H.olympicum oil were germacrene D (16.0%) and (E)-caryophyllene (7.4%).