Decode the genetic code of a species of yeast used in the brewing blonde. Manufacturers of Bavaria took five centuries using a mixed yeast with half of their genes of an unknown species. This yeast would have reached Europe accidentally. A group of scientists has deciphered the genetic code of a species of yeast, used to BREW blonde beer, found in Patagonia (Argentina), which helps to solve one of the mysteries in the preparation of this drink, according to a study published Monday. The study was carried out in a wooded area in the Northwest of Patagonia, in the extreme south of Argentina, and finally solved the mystery of the yeast that for more than five centuries the European producers in the region of Bavaria have brewed.
Scientists knew that type lager – of low fermentation – beers made from a hybrid yeast, with half of its genes from a common yeast and the other half of an unknown species, which just being discovered by a team of researchers from Argentina, Portugal and United States. Using molecular techniques, Professor Jose Sampaio and Paula Goncalves, new University of Lisbon, they investigated more than 1,000 species of yeast used by the European producers of beer, but were unsuccessful and decided to extend the investigation to all over the world. Patagonia is the natural home of many species of yeast and together with the investigator of the National Council of scientific research and techniques (Argentina), Diego Libkind, found strains of a species candidate. Once taken samples, University of Colorado researchers sequenced the genome of the strain and found that the coincidence – 99.5 percent – was almost total with which is used to make beer. Accidentally reached Europe authors have dubbed his find as Saccharomyces pastorianus, a cold-tolerant species and, probably, f bluehash moved into Europe accidentally in wood of any boat or by the intervention of the fly of the fruit. The study, published in the journal Proceedings of the National Academy of Sciences (PNAS), indicates that these findings could help create improved brewing yeasts. Source of the news: A group of scientists discover the key of the yeast in Patagonia