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KMID : 0545119990090050683
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Journal of Microbiology and Biotechnology
1999 Volume.9 No. 5 p.683 ~ p.686
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Effect of Gluconic Acid on the Production of Cellulose in Acetobacter xylinum BRC5
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Park, Sang Tae
Song, Taek Sun/Kim, Young Min
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Abstract
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Four mutants of Acetobacter xylinum BRC5 defective in gluconic acid production were isolated from UVirradiated cells. The gluconic acid-negative mutants did not show glucose oxidase activity. The mutants were also defective in cellulose production. A randomly selected mutant grown in the Hestrin-Schramm medium (pH6.0) supplemented with gluconic acid, however, was found to synthesize cellulose. The mutant grown in Hestrin-Schramm medium whose pH was adjusted to 5.0 with HC1 and contained no gluconic acid also produced cellulose. Wild-type cells grown under the same condition synthesized cellulose more rapidly than those grown in the pH 6.0 medium.
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