GC and GC–MS analysis of A. herba-alba and A. absinthium essential oils showed that 22 and 31 compounds were identified, which
represent respectively 49.03% and 56.26% of total constituents
(Table 2). Camphor (11.48–16.71%); 1,8 cineol (19.59–5.47%); camphene (2.63–2.37%), and borneol (2.29–1.77%) were the common
major compounds for both oils, whereas -thujone (22.72%) was
the major component of A. absinthium essential oil.