Valerian (herb) particular binding site. Hydrophilic extractions of the herb commonly sold over the counter, however, probably do not contain significant amounts of isovaltrate. Valerenic acid in valerian stimulates serotonin receptors as a partial agonist, including 5-HT which is implicated in the sleep-wake cycle. The chief constituent of valerian is a yellowish-green to brownish-yellow oil present in the dried root, varying in content from 0.5 to 2.0%. This variation in quantity may be determined by location; a dry, stony soil yields a root richer in oil than moist, fertile soil. The volatile oils that form the active ingredient are pungent, somewhat reminiscent
Valerian A. Frolov Red Banner, Order of Kutuzov (1st class), Order of Bogdan Khmelnitsky (1st Class), Order of the Red Star and numerous medals, including the Medal "For the Victory over Germany in the Great Patriotic War 1941–1945", the Medal "For the Defence of the Soviet Transarctic" and the Jubilee Medal "XX Years of the Workers' and Peasants' Red Army". A street was named in his honour in the Kukkovka district of the Karelian capital Petrozavodsk. Valerian A. Frolov Valerian Aleksandrovich Frolov (; June 7 (O.S. May 26), 1895 – 1961) was a Soviet Colonel General (1943). Frolov participated in the First World