Emil Christian Hansen
|Emil Christian Hansen|
Emil Christian Hansen
|Born||May 8, 1842
|Died||August 27, 1909 (aged 67)|
|Known for||Saccharomyces carlsbergensis|
|Author abbrev. (botany)||E.C.Hansen|
Born in Ribe, he financed his education by writing novels. He was awarded a gold medal in 1876 for an essay on fungi, titled De danske Gjødningssvampe. During his days as a university student in Copenhagen, he worked as an unpaid assistant to zoologist Japetus Steenstrup (1813–1897). In 1876, with Alfred Jørgensen (1848–1925), he published a Danish translation of Charles Darwin’s "The Voyage of the Beagle"; Rejse om Jorden. From 1879 to 1909, he was director of the physiological department at Carlsberg Laboratory.
Hired by the Carlsberg Laboratory in Copenhagen in 1879, he discovered that yeast was composed of different kinds of fungi and that the yeast culture could be cultivated, becoming the first (1881) to classify brewer's yeast into cold, bottom-fermenting lager strains (saccharomyces uvarum) and warm, top-fermenting ale strains (saccharomyces cerevisiae). In 1890 he isolated a pure cell of yeast, and after combining it with a sugary solution, produced more yeast than was in a yeast bank. It was known as Saccharomyces carlsbergensis, and is used in lager beers. See Fermentation, Yeast.
Publications by Hansen that have been translated into English
- Practical studies in fermentation: being contributions to the life history of micro-organisms, 1896.
- Considerations on Technical Mycology, 1905.
- Claussen, Niels Hjelte Emil Christian Hansen, pp. 161–164 in: Meisen, V. Prominent Danish Scientists through the Ages. University Library of Copenhagen 450th Anniversary. Levin & Munksgaard, Copenhagen (1932)
- Beer in Health and Disease Prevention edited by Victor R. Preedy
- Encyclopedia.com (biography)
- Darwinarkivet (biographical information)
- NCBI The dynamics of the Saccharomyces carlsbergensis brewing yeast transcriptome
- Encyclopedia of Life Anixiopsis
- WorldCat Search (publications)
- "Author Query for 'E.C.Hansen'". International Plant Names Index.
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