Otto Tunmann (13 August 1867, Posen – 11 September 1919, Innsbruck) was a German pharmacologist and phytochemist.

He studied pharmacy at the Universities of Leipzig and Erlangen, obtaining his doctorate in 1900 from the University of Bern. Afterwards, he worked as a pharmacist in Schöneck, Vogtland. From 1905 he was an assistant to Alexander Tschirch at Bern,"Tunmann, Paul Otto", Deutsche Biographische Enzyklopädie 10: Thies - Zykan by K. G. Saur Verlag GmbH & Company, Walter De Gruyter Incorporated where he conducted studies in the fields of phytomicrochemistry, microchemical toxicology and forensic chemistry.BHL Taxonomic literature : a selective guide to botanical publications In May 1919, Tunmann was appointed professor of pharmacognosy at the University of Vienna. He died in Innsbruck, Austria a few months later.Google Books Berichte der Deutschen Pharmaceutischen Gesellschaft, Volume 30

In 1915 Tunmann isolated from the leaves of hyssop, a substance he referred to as "hyssopin".Metabolomics Reference:Tunmann O: Pharm. Zentralhalle,1915,56,135Digest of Comments on The Pharmacopoeia of the United States ..., Issues 129-134 by National Institutes of Health (U.S.)

Selected publications Über die Sekretdrüsen, 1900 - On glandular secretions (dissertation). Mikroskopisch-pharmakognostische Beiträge zur Kenntnis einiger neuerer Arzneidrogen, 1908 - Microscopic-pharmacognostic contributions to the knowledge of some recent medicinal drugs. Zur Mikrochemie des Inulins, 1910 - On the microchemistry of inulins. Der Drogenhandel Hamburgs, 1910 Digital edition by the University and State Library Düsseldorf Beiträge zur angewandten Pflanzenmikrochemie - Volumes 1-2, 1911 - Contributions to applied plant microchemistry. Pflanzenmikrochemie: ein Hilfsbuch beim mikrochemischen Studium pflanzlicher Objekte 1913 - Botanical microchemistry: a manual for micro-chemical studies of plants.Google Search (publications) Digital edition by the University and State Library Düsseldorf

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