Kombucha

The most common bacteria found in kombucha are those of the Acetobacter and Gluconobacter species.

An excerpt from the article 16 facts about kombucha

The primary strain in kombucha is Gluconacetobacter xylinus, which synthesizes cellulose. The most common yeast species are Saccharomyces, Zygosaccharomyces, Dekkera, Torulospora, Pichia, Mycotorula, Mycoderma.