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These yeasts live as decomposers, feeding on dead and decaying wood, leaves, litter, and other organic matter. According to Suh et al. (2006), "yeasts are responsible for important industrial and biotechnological processes, including baking, brewing and synthesis of recombinant proteins," with Saccharomycetes being model organisms in research.
Under the microscope, the India ink stain is used for easy visualization of the capsule in cerebral spinal fluid. [10] The particles of ink pigment do not enter the capsule that surrounds the spherical yeast cell, resulting in a zone of clearance or "halo" around the cells. This allows for quick and easy identification of C. neoformans.
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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.
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. It is believed to have been originally isolated from the skin of grapes.
By the late 18th century two yeast strains used in brewing had been identified: Saccharomyces cerevisiae (top-fermenting yeast) and S. pastorianus (bottom-fermenting yeast). S. cerevisiae has been sold commercially by the Dutch for bread-making since 1780; while, around 1800, the Germans started producing S. cerevisiae in the form of cream.
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Candida albicans is an opportunistic pathogenic yeast [5] that is a common member of the human gut flora.It can also survive outside the human body. [6] [7] It is detected in the gastrointestinal tract and mouth in 40–60% of healthy adults.