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A SCOBY (for symbiotic colony of bacteria and yeast) is a mix of cultures of bacteria and yeast present during production of kombucha and water kefir among others. The term "colony" in the name is a scientific misnomer, because it implies a group of genetically identical or nearly identical organisms living together. For this reason, the acronym is essentially absent in the biomedical literature and the proper name pellicle is used. The species comprising the mixed cultures vary from preparation to preparation, but generally include Acetobacter bacterial species, as well as various Saccharomyces and other yeast types. SCOBY cultures used in beverage production can produce a structure referred to as a mushroom, which is also biologically misleading, because mushrooms are a completely unrelated group of fungi. It often forms in vinegar in jars of pickled foods.
Use in food production
Other foods and beverages which require a similar "symbiotic culture" in their production include:
- Ginger beer;
- Kefir, both milk kefir and water kefir (tibicos), whose required cultures differ;
- Jun; a drink similar to kombucha that grows on honey-sweetened green tea;
- Vinegar; the production of which requires a mother of vinegar; and
- Sourdough; derived from a sourdough "starter," flour-water mixture exhibiting growth after advantitious contamination with wild yeasts.
- Program entitled "The Fermentation Revival" on BBC News.
- N. Padilla "do it yourself article in the The Harvard Crimson.
... http://www.bbc.co.uk/iplayer/episode/b01g4ks7/Food_Programme_The_Fermentati... available online via public BBC-iplayer to 2099