.jpg)
Johann Andreas Buchner (6 April 1783 – 5 June 1852) was a German pharmacologist working in the area of alkaloids. He was the father of pharmacologist Ludwig Andreas Buchner (1813–1897).
He was born in Munich and studied at Johann Bartholomäus Trommsdorff's pharmaceutical institute in Erfurt, obtaining his PhD in 1807. In 1809, he became Oberapotheker of the Zentral-Stiftungs-Apotheke for hospitals in Munich. In 1818, he was appointed an associate professor of pharmacy, medical formula instruction and toxicology at the University of Landshut, where he later became a full professor of pharmacy (1822). When the university relocated to Munich, he moved back to his home town, where he lived and worked until his death.
He is credited with isolating salicin from willow bark (1828)[1] and the discovery of berberine (from the root bark of Berberis vulgaris).[2]