Saccharomyces eubayanus

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Saccharomyces eubayanus
Scientific classification
Kingdom: Fungi
Division: Ascomycota
Class: Saccharomycetes
Order: Saccharomycetales
Family: Saccharomycetaceae
Genus: Saccharomyces
Species: S. eubayanus
Binomial name
Saccharomyces eubayanus

Saccharomyces eubayanus, a type of yeast, is a likely parent of the lager brewing yeast, Saccharomyces pastorianus.[1][2]

Lager is a type of beer created from malted barley and fermented at low temperatures, originally in Bavaria. S. eubayanus was first discovered in Patagonia, possibly being an example of Columbian exchange.[3][4]

With discoveries in other parts of the world shortly after, the South American origins of S. eubayanus have been challenged, in particular by genomic and phylogenetic evidence suggesting a Tibetan origin. The proponents of this theory argue that it "corresponds better with geography and world trade history."[5]

References[edit]

  1. ^ Welsh, Jennifer. "'Missing' Lager Brewing Yeast Discovered in Patagonia". Livescience.com. Retrieved 2011-08-23. 
  2. ^ Kaiser, Tiffany. "Lager's Mystery Yeast Discovered in Argentina". Dailytech.com. Retrieved 2011-08-23. 
  3. ^ Morrison, David. "Lager beer and phylogenetic networks". Retrieved 29 October 2014. 
  4. ^ Libkind, D.; Hittinger, C.; Valério, E.; Gonçalves, C.; Dover, J.; Johnston, M.; Gonçalves, P.; Sampaio, J. (23 August 2011), "Microbe domestication and the identification of the wild genetic stock of lager-brewing yeast", PNAS, 108 (34): 14539–14544, doi:10.1073/pnas.1105430108, PMC 3167505free to read, PMID 21873232 
  5. ^ Bing, J.; et al. (May 2014), "Evidence for a Far East Asian origin of lager beer yeast", Genome Biology, 24: R380–R381, doi:10.1016/j.cub.2014.04.031