Mother of vinegar
Mother of vinegar is a biofilm composed of a form of cellulose, yeast and bacteria that sometimes develops on fermenting alcoholic liquids during the process that turns alcohol into acetic acid with the help of oxygen from the air and acetic acid bacteria. It is similar to the SCOBY mostly known from production of komboucha, but develops to a much lesser extent due to lesser availability of yeast (which is often no longer present in wine/cider at this stage) and a different population of bacteria. Mother of vinegar is often added to wine, cider, or other alcoholic liquids to produce vinegar at home, although only the bacteria is required,[1] but historically has also been used in large scale production.
Mother of vinegar is also known as Mycoderma aceti, a New Latin expression, from the Greek μύκης ("fungus") plus δέρμα ("skin"), and the Latin aceti ("of the acid").[2]
Mother of vinegar can also form in store-bought vinegar if there is some residual sugar, leftover yeast and bacteria and/or alcohol contained in the vinegar. This is more common in unpasteurized vinegar, since the pasteurization might not stabilize the process completely. While not necessarily appetizing in appearance, mother of vinegar is completely harmless and the surrounding vinegar does not have to be discarded because of it. It can be filtered out using a coffee filter, used to start a bottle of vinegar, or simply ignored.[3]
See also
- Acetobacter
- Fulvic acid
- SCOBY
- Turbatrix aceti - vinegar eels
References
- ^ William Theodore Brannt (1889). A Practical Treatise on the Manufacture of Vinegar and Acetates, Cider, and Fruit-wines. H.C. Baird & Company. pp. 34–38. Retrieved 19 May 2016.
- ^ Fuchs, G. [Ed.] (2006) Allgemeine Mikrobiologie. 8. ed., Thieme press, Stuttgart
- ^ "Mother of vinegar fact sheet". Canadian food inspection agency. Retrieved 13 Nov 2021.
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