Research Information System
World Congress on Engineering and Computer Science, San-Francisco, Costa Rica, 20 - 22 October 2009, vol.1247, pp.340-348
Wastes of traditionally fermented Turkish vinegar were used in the isolation of cellulose producing acetic acid bacteria. Waste material was pre-enriched in Hestrin-Schramm medium and microorganisms were isolated by plating dilution series on HS agar plates The isolated strains were subjected to elaborate biochemical and physiological tests for identification. Test results were compared to those of reference strains Gluconacetobacter xylinus DSM 46604, Gluconacetobacter hansenii DSM 5602 and Gluconacetobacter liquefaciens DSM 5603. Seventeen strains, out of which only three were found to secrete the exopolysaccharide cellulose. The highest cellulose yield was recorded as 0.263 +/- 0.02 g cellulose L(-1) for the strain AS14 which resembled Gluconacetobacter hansenii in terms of biochemical tests.