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Appl Biochem Biotechnol ; 121-124: 861-9, 2005.
Article in English | MEDLINE | ID: mdl-15930565

ABSTRACT

A new acetic acid-producing microorganism, Acetobacter sp. RKY4, was isolated from Korean traditional persimmon vinegar, and we optimized the culture medium for acetic acid production from ethanol using the newly isolated Acetobacter sp. RKY4. The optimized culture medium for acetic acid production using this microorganism was found to be 40 g/L ethanol, 10 g/L glycerol, 10 g/L corn steep liquor, 0.5 g/L MgSO4.7H2O, and 1.0 g/L (NH4)H2PO4. Acetobacter sp. RKY4 produced 47.1 g/L of acetic acid after 48 h of fermentation in a 250 mL Erlenmeyer flask containing 50 mL of the optimized medium.


Subject(s)
Acetic Acid/metabolism , Acetobacter/metabolism , Bioreactors/microbiology , Cell Culture Techniques/methods , Diospyros/microbiology , Ethanol/metabolism , Glucose/metabolism , Acetic Acid/isolation & purification , Acetobacter/classification , Acetobacter/ultrastructure , Culture Media/metabolism , Hydrogen-Ion Concentration , Species Specificity
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