| 摘要 |
PURPOSE: A refining process of 2,6-naphthalene dicarboxylic acid (NDA) using microorganism is provided, thereby effectively removing 2-formyl-6-naphthoic acid (FNA) from crude naphthalene dicarboxylic acid(CNDA), and continuously reusing the microorganism. CONSTITUTION: The refining process of 2,6-naphthalene dicarboxylic acid (NDA) using microorganism comprises the steps of: adding a phosphate buffer solution (pH 8.0) and solvent such as dimethyl sulfoxide into crude naphthalene dicarboxylic acid(CNDA) as a substrate to prepare a reaction solution; inoculating Bacillus sp. F-3 into the reaction solution; regulating pH of the reaction solution to 6.0 to 10.0 and reacting the reaction solution at 25 to 45 deg.C, wherein a carbon source is added into the reaction solution; the carbon source is selected from glucose, fructose, trehalose, ribose, mannose, maltose, sucrose, dextrin, cyclodextrin, citric acid and succinic acid.
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