Hops originated in Europe and other places, and are also distributed in Xinjiang, China. They contain resin, amanone, volatile oil and other components. The volatile oil includes geraniene, linalool, amanol, etc., and the content of tannin, flavonoids, choline and fructose is not low.
Hops have disease-resistant protozoa, sedative and hypnotic, estrogen - like effects. Extract, uralone and hydrooxone can inhibit the growth of a variety of gram-positive bacteria in vitro, but have very weak inhibitory effect on pathogenic and non-pathogenic fungi and actinomycetes. Urbanone and hydrooxone have sedative effects. The β-acid in the resin has strong estrogen - like effect. When beer is brewed, hops are added, not only because of the aroma of their volatile oil, but also because of the antiseptic effect. Hops extract is mainly used to treat indigestion, bloating, puffiness, cystitis, tuberculosis, insomnia.