A symbiotic colony of bacteria and yeast, or SCOBY is a popular term (rather than scientific) used to refer to mixed cultures of bacteria and yeast present during production of kombucha. 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. 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.
The factual accuracy of part of this article is disputed. The dispute is about reliability of section content as a reflection of preponderance of scientific activity, as only indicated source was a commercial health food website. Please help to ensure that disputed statements are reliably sourced. See the relevant discussion on the talk page.(July 2015)