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Acetic acid bacteria''Acetobacter'' ''Acidiphilium'' ''Acidocella'' ''Acidomonas'' ''Craurococcus'' ''Gluconacetobacter'' ''Gluconobacter'' ''Paracraurococcus'' ''Rhodopila'' ''Roseococcus'' ''Stella (genus)'' ''Zavarzinia'' Acetic acid bacteria are bacterium that derive their energy from the oxidation of ethanol to acetic acid during respiration. They are Gram-negative rod-shaped bacterium that obligate aerobe. The acetic acid bacteria are found in nature where ethanol is being formed as a result of yeast fermentation of sugars and plant carbohydrates. They can be isolated from the nectar of flowers and from damaged fruit. Other good sources are fresh apple cider and pasteurization beer which has not been filter sterilized. In these liquids the acetic acid bacteria grow as a surface film due to their aerobe nature and active motility. Vinegar is produced when acetic acid bacteria act on alcoholic beverages such as wine. Some genera, such as ''Acetobacter'', can eventually oxidize acetic acid to carbon dioxide and water using Krebs cycle enzymes. Other genera, such as ''Gluconobacter'', doesn't further oxidize acetic acid, as it does not have a full set of Krebs cycle enzymes. As these bacteria produce acid, they are unusually acid tolerant, growing well below pH 5.0, although the pH optimum for growth is 5.4-6.3. Proteobacteria Acetic acid bacteria''Text from a flashcard I wrote. Update article as needed. user:maveric149'' Acetic acid bacteria Gram reaction? Microscopic appearance? Colony characteristics? Isolation? inoculum? media? conditions? Gram - rods oxidize ethanol to acetic acid, used to make vinegar, CaCO3 in agar --> HCO3 if acid is made = clearing fermented OJ Yeast Extract Ethanol Agar 20 C Acetobacter can oxidize acetic acid, Gluconobacter cannot ------ See other meanings of words starting from letter: AAB | AC | AD | AE | AF | AG | AH | AI | AJ | AK | AL | AM | AN | AO | AP | AR | AS | AT | AU | AW | AX | AY | AZ |Words begining with Acetic_acid_bacteria: Acetic_acid_bacteria Acetic_acid_bacteria
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