Search results
Results from the WOW.Com Content Network
Saccharomyces cerevisiae (/ ˌ s ɛr ə ˈ v ɪ s i. iː /) (brewer's yeast or baker's yeast) is a species of yeast (single-celled fungal microorganisms). The species has been instrumental in winemaking, baking, and brewing since ancient times.
Baker's Yeast (Saccharomyces cerevisiae) is used to make bread, beer and wine, during which process sugars such as glucose or sucrose are fermented to make ethanol and carbon dioxide. Bakers use the yeast for carbon dioxide production, causing the bread to rise, with the ethanol boiling off during cooking.
Saccharomycetes belongs to the Ascomycota division of the kingdom Fungi.It is the only class in the subdivision Saccharomycotina, the budding yeasts.Saccharomycetes contains a single order, Saccharomycetales.
Saccharomyces is a genus of fungi that includes many species of yeasts. Saccharomyces is from Greek σάκχαρον (sugar) and μύκης (fungus) and means sugar fungus.Many members of this genus are considered very important in food production where they are known as brewer's yeast, baker's yeast and sourdough starter among others.
Yeast need a reliable source of nitrogen in forms that they can assimilate in order to successfully complete fermentation. Yeast assimilable nitrogen or YAN is the combination of free amino nitrogen (FAN), ammonia (NH 3) and ammonium (NH 4 +) that is available for a yeast, e.g. the wine yeast Saccharomyces cerevisiae, to use during fermentation.
Sexual reproduction is not known for all species of Saccharomycotina, but may happen in certain species if environmental conditions favour it (e.g. deficiency in nitrogen and carbohydrate). [2] Sexual reproduction is well known in Saccharomyces cerevisiae. Here, the life cycle involves alternation between a haploid and a diploid phase.
See today's average mortgage rates for a 30-year fixed mortgage, 15-year fixed, jumbo loans, refinance rates and more — including up-to-date rate news.
The Saccharomycetaceae are a family of yeasts in the order Saccharomycetales that reproduce by budding.Species in the family have a cosmopolitan distribution, and are present in a wide variety of habitats, especially those with a plentiful supply of carbohydrate sources. [1]