The name Humulene comes from the plant where it was first extracted from, Humulus Lupulus, also known as hops. Humulene can be up to 40% of the hops essential oil. In addition, its oxidation products in the brewing process give many beers their pleasant hoppy aroma. It has been shown to have antitumor activities.
Antitumor activity of balsam fir oil: production of reactive oxygen species induced by alpha-humulene as possible mechanism of action.