Cannabaceae

Emil Christian Hansen
Emil Christian Hansen
Born8 May 1842 (1842-05-08)
Died27 August 1909 (1909-08-28) (aged 67)
NationalityDanish
Known forSaccharomyces carlsbergensis
Scientific career
FieldsMycology
InstitutionsCarlsberg Laboratory
Author abbrev. (botany)E.C.Hansen
Hansen in his lab.

Emil Christian Hansen (8 May 1842 – 27 August 1909) was a Danish mycologist and fermentation physiologist.

Early life and education

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Hansen was born in Ribe to Joseph Christian Hansen, a house-painter, and his wife Ane Catherina Dyhre.[1]

Between 1874 and 1875 he edited and distributed an mycological exsiccata work, namely Fungorum fimicolorum exempl. exsiccati, with 350 numbered specimen units.[2] He was awarded a gold medal in 1876 for an essay on fungi, titled De danske Gjødningssvampe.[3] During his days as a university student in Copenhagen, he worked as an unpaid assistant to zoologist Japetus Steenstrup (1813–1897).

Career

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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.[4]

Hired by the Carlsberg Laboratory in Copenhagen in 1879,[5] he became the first to isolate a pure cell of yeast in 1883, and after combining it with a sugary solution, produced more yeast than was in a yeast bank. It was named as Saccharomyces carlsbergensis after the laboratory, and is the yeast from which are derived, all yeasts used in lager beers.[6] See Fermentation, Yeast.

Hansen is the taxonomic authority of the fungal genus Anixiopsis (1897) from the family Onygenaceae.[7]

He was honoured in 1911, when botanist H. Zikes published Hanseniaspora, which is a genus of yeasts.[8]

Publications by Hansen that have been translated into English

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Literature

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  • 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

References

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  1. ^ Klöcker, Albert (1976) [Written in 1910]. "Emil Christian Hansen 1842-1909". In Holter, H.; Moller, K. Max (eds.). The Carlsberg Laboratory, 1876/1976. Copenhagen: The Carlsberg Foundation. pp. 168–189.
  2. ^ "Fungorum fimicolorum exempl. exsiccati: IndExs ExsiccataID=1871843967". IndExs – Index of Exsiccatae. Botanische Staatssammlung München. Retrieved 4 August 2024.
  3. ^ Encyclopedia.com (biography)
  4. ^ Darwinarkivet (biographical information)
  5. ^ www.germanbeerinstitute.com Archived 2015-09-24 at the Wayback Machine
  6. ^ Olesen, K; Felding, T; Gjermansen, C; Hansen, J (2002). "The dynamics of the Saccharomyces carlsbergensis brewing yeast transcriptome during a production-scale lager beer fermentation". FEMS Yeast Res. 2 (4): 563–73. doi:10.1016/s1567-1356(02)00155-1. PMID 12702272.
  7. ^ Encyclopedia of Life Anixiopsis
  8. ^ "Hanseniaspora Zikes, 1911". www.gbif.org. Retrieved 26 March 2022.
  9. ^ WorldCat Search (publications)
  10. ^ International Plant Names Index.  E.C.Hansen.


One thought on “Cannabaceae

  1. Well, that’s interesting to know that Psilotum nudum are known as whisk ferns. Psilotum nudum is the commoner species of the two. While the P. flaccidum is a rare species and is found in the tropical islands. Both the species are usually epiphytic in habit and grow upon tree ferns. These species may also be terrestrial and grow in humus or in the crevices of the rocks.
    View the detailed Guide of Psilotum nudum: Detailed Study Of Psilotum Nudum (Whisk Fern), Classification, Anatomy, Reproduction

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