| abstract |
[Problem] To provide a method for producing a chemical substance with high yield using a mixed sugar composed of a hexose and a pentose as a fermentation raw material. [Solution] Provided is a method for producing a chemical substance through continuous fermentation, said method comprising filtrating a culture solution of a microorganism using a separation membrane, retaining an unfiltered portion of the culture solution in the culture solution or refluxing the unfiltered portion through the culture solution, adding a new fermentation raw material to the culture solution and collecting a product from the culture solution, wherein the microorganism can undergo catabolite inhibition and the fermentation raw material comprises a hexose and a pentose. |