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  2. Saccharomyces cerevisiae - Wikipedia

    en.wikipedia.org/wiki/Saccharomyces_cerevisiae

    Saccharomyces cerevisiae (/ ˌsɛrəˈvɪsi.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.

  3. Baker's yeast - Wikipedia

    en.wikipedia.org/wiki/Baker's_yeast

    Saccharomyces cerevisiae, the yeast commonly used as baker's yeast. Gradation marks are 1 μm apart.. Baker's yeast is the common name for the strains of yeast commonly used in baking bread and other bakery products, serving as a leavening agent which causes the bread to rise (expand and become lighter and softer) by converting the fermentable sugars present in the dough into carbon dioxide ...

  4. Mating of yeast - Wikipedia

    en.wikipedia.org/wiki/Mating_of_yeast

    Mating of yeast. The mating of yeast, also known as yeast sexual reproduction, is a fundamental biological process that promotes genetic diversity and adaptation in yeast species. Yeasts such as Saccharomyces cerevisiae (baker's yeast) are single-celled eukaryotes that can exist as either haploid cells, which contain a single set of chromosomes ...

  5. Septic tank - Wikipedia

    en.wikipedia.org/wiki/Septic_tank

    A septic tank is an underground chamber made of concrete, fiberglass, or plastic through which domestic wastewater (sewage) flows for basic sewage treatment. [ 2 ] Settling and anaerobic digestion processes reduce solids and organics, but the treatment efficiency is only moderate (referred to as "primary treatment"). [ 2 ]

  6. Aerobic treatment system - Wikipedia

    en.wikipedia.org/wiki/Aerobic_treatment_system

    Aerobic treatment system. An aerobic treatment system (ATS), often called an aerobic septic system, is a small scale sewage treatment system similar to a septic tank system, but which uses an aerobic process for digestion rather than just the anaerobic process used in septic systems. These systems are commonly found in rural areas where public ...

  7. Activated sludge - Wikipedia

    en.wikipedia.org/wiki/Activated_sludge

    Activated sludge tank at Beckton sewage treatment plant, UK.The white bubbles are due to the diffused air aeration system. The activated sludge process is a type of biological wastewater treatment process for treating sewage or industrial wastewaters using aeration and a biological floc composed of bacteria and protozoa.

  8. Septic drain field - Wikipedia

    en.wikipedia.org/wiki/Septic_drain_field

    Septic drain fields, also called leach fields or leach drains, are subsurface wastewater disposal facilities used to remove contaminants and impurities from the liquid that emerges after anaerobic digestion in a septic tank. Organic materials in the liquid are catabolized by a microbial ecosystem. A septic drain field, a septic tank, and ...

  9. Saccharomycotina - Wikipedia

    en.wikipedia.org/wiki/Saccharomycotina

    Saccharomycotina include some of the economically most important fungi known. Members include species of industrial and agricultural importance (e.g. brewing, baking, fermentation of food products, production of citric acid, production of recombinant proteins, biofuel production, biological pest control of crops).

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