Saccharomyces uvarum
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| iSaccharomyces uvarum | ||||||||||||||||
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| Saccharomyces uvarum Nguyen & Gaillardin ex. Beijerinck |
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Saccharomyces carlsbergensis |
Saccharomyces uvarum is a species of yeast that is believed to originate as a hybrid of S. cerevisiae and S. monacensis, because of its allopolyploid genome. It is a bottom-fermenting yeast.
Discovered in 1883 by Emil Christian Hansen working for the Danish brewery Carlsberg, it is probably better known as Saccharomyces carlsbergensis. The newly discovered yeast was not copyrighted but released for public use by J. C. Jacobsen, owner of Carlsberg. Further research was done by Martinus Willem Beijerinck in 1898, it was synonymized with S. bayanus but revived by Nguyen & Gaillardin in 2005.
A bottom-fermenting yeast is one of the two types of yeast used in the brewing of beer, so called because when the fermentation process is complete it settles to the bottom of the fermentation vessel.
Beers that use only bottom-fermenting yeast are called lagers, and for that reason these yeasts are also sometimes called "lager yeasts".
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↑ http://info.carlsberg.com/Info/frameset.htm?pUrl=%2FInfo%2FCompany%2FHeritage%2FCompany%2BHistory%2Fdefault%2Ehtm#
↑ H. V. Nguyen & C. Gaillardin (2005). "Evolutionary relationships between the former species Saccharomyces uvarum and the hybrids Saccharomyces bayanus and Saccharomyces pastorianus; reinstatement of Saccharomyces uvarum (Beijerinck) as a distinct species.". FEMS Yeast Res. 5: 471–483.
