Edmund Drechsel

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Edmund Drechsel

Ferdinand Heinrich Edmund Drechsel (born September 3, 1843 in Leipzig , † September 22, 1897 in Naples ) was a physiological chemist . He was one of the most important representatives of the older biochemistry.

Life

Edmund Drechsel was born in Leipzig in 1843 as the son of the lawyer and notary Carl Ferdinand Drechsel from the Ore Mountains . From 1849 he attended the Hartmeyer private school and from 1855 to 1861 the humanistic Thomas School in Leipzig .

After graduating from high school, he studied natural sciences , especially chemistry , with Otto Linné Erdmann at the University of Leipzig and with Hermann Kolbe at the Philipps University in Marburg . In the summer of 1861 he became a member of the Leipzig University Choir of St. Pauli (now the German Choir ). In 1864 he was promoted to Dr. phil. PhD. He then worked as an assistant to Jacob Volhard at the Ludwig Maximilians University in Munich and from 1865 to Hermann Kolbe in Leipzig. In 1868 he began his work in the lead and silver works Gustave Dumont et frères in Sclaigneaux , Belgium. From 1870 to 1872 he was assistant to Theodor Scheerer at the Bergakademie Freiberg .

In 1872 he became an assistant to Carl Ludwig and head of the chemical department of the Physiological Institute at Leipzig University. In 1875 he completed his habilitation at the Philosophical Faculty with the work Contributions to the knowledge of cyanimide and became a private lecturer . In 1878 he became an associate professor for physiological chemistry at the Medical Faculty of the University of Leipzig.

From 1892 to 1897 he succeeded Marcel Nencki as a full professor of physiological and pathological chemistry and pharmacology at the University of Bern . In 1897 he stayed for study purposes in the Naples Zoological Station , where he died on September 22nd.

science

Drechsel made important contributions to physiological and physical chemistry .

He is considered a promoter of protein chemistry (including the discovery of the amino acid lysine ). He carried out laboratory experiments on proteins and formulated a theory of urea formation from protein bodies via carbamic acid . Drechsel discovered alternating current electrosynthesis and described the redox reactions observed at the electrodes . He studied glycolic acid , the reduction of carbonic acid to oxalic acid, and devoted himself to the chemistry of the liver . The Borsche-Drechsel cyclization is named after him and Walther Borsche .

The following laboratory equipment and chemical instruments bear his name:

Awards

Fonts (selection)

  • About the oxidation of Glycocoll, Leucine and Tyrosine, as well as about the occurrence of carbamic acid in the blood , in: Journal für Praktische Chemie 12 (1875), p. 417-426. doi : 10.1002 / prac.18750120127
  • Contributions to the knowledge of cyanamide , in: Journal für Praktische Chemie 11 (1875), pp. 284–353. doi : 10.1002 / prac.18750110125
  • About the precipitation of lime by carbonic acid alkalis , in: Journal für Praktische Chemie 16 (1877), pp. 169-180. doi : 10.1002 / prac.18770160111
  • About the formation of urea in the animal organism , in: Journal für Praktische Chemie 22 (1880), pp. 476-488. doi : 10.1002 / prac.18800220140
  • First part. Chemistry of secretions and tissues , in: Ludimar Hermann : Handbuch der Physiologie, Volume 5 (manual of the physiology of secretion and absorption), FCW Vogel, Leipzig 1883, pp. 447-624.
  • Electrolyses and electrosynthesis , in: Journal für Praktische Chemie 29 (1884), pp. 229-252. doi : 10.1002 / prac.18840290122
  • About the electrolysis of normal caproic acid with alternating currents , in: Journal für Praktische Chemie 34 (1886), pp. 135-151. doi : 10.1002 / prac.18860340118
  • About electrolysis of phenol with alternating currents , in: Journal für Praktische Chemie 38 (1888), pp. 65-74. doi : 10.1002 / prac.18880380105
  • Contributions to the knowledge of metabolism , in: Archive for Physiology (1891), pp. 236–247.
  • The breakdown of protein substances , in: Archive for Physiology (1891), pp. 248–278.
  • About the reduction of alkaline copper solutions by protein bodies , in: Zeitschrift für Physiologische Chemie 21 (1895), pp. 68-70.

literature

Web links

Individual evidence

  1. Professor catalog of the University of Leipzig: Prof. Dr. phil., Dr. med. hc Heinrich Ferdinand Edmund Drechsel
  2. Zeno.org: Drechsel, Edmund
  3. Richard Sachse , Karl Ramshorn, Reinhart Herz: The teachers of the Thomasschule in Leipzig 1832-1912. The high school graduates of the Thomas School in Leipzig 1845–1912 . BG Teubner Verlag, Leipzig 1912, p. 38.
  4. Complete directory of the Paulines from summer 1822 to summer 1938, Leipzig 1938, page 35
  5. Person Wiki of SLUB Dresden: Scheerer, Theodor ( Memento from February 9, 2011 in the Internet Archive )
  6. ^ Carl Ludwig Institute for Physiology at the University of Leipzig: History
  7. Julius Pagel:  Drechsel, Edmund . In: Allgemeine Deutsche Biographie (ADB). Volume 48, Duncker & Humblot, Leipzig 1904, p. 77.