Method for producing organic acid through organic acid fermentation by microorganism having improved extraction efficiency via cold extraction and device for production of organic acid

摘要

More particularly, the present invention relates to a method for producing an organic acid by fermentation of an organic acid by microbial organic acid fermentation, and more particularly, to a method for producing an organic acid by fermentation of an organic acid by fermentation of a microorganism, Transferring the culture medium to an extractor for extracting the organic acid from the culture medium in which the fermentation reaction is performed; b) injecting carbon dioxide into the extractor in a cooled state and introducing an extraction solvent to extract the organic acid from the culture; c) separating the culture broth into an extraction solvent containing the extracted organic acid and the remaining culture broth, and separating the organic acid from the extraction solvent; And d) removing the carbon dioxide from the remaining culture liquid in step c), followed by joining to the culture medium in which the fermentation reaction by the microorganism of step a) is carried out, and a method for producing organic acid by fermentation with microorganism organic acid To an apparatus for performing the method.According to the present invention, since the process pH can be controlled by using carbon dioxide without adding a separate pH adjusting agent, the organic acid can be produced in a continuous manner without lowering the organic acid production efficiency. Particularly, the pH can be more easily controlled.;