MANUFACTURING METHOD OF D TYPE LACTIC ACID

摘要

PURPOSE: A method for preparing D-type lactic acids is provided to obtain high purity D-type lactic acids of high yield by separating generated lactic acids through selective absorption/desorption using an activated carbon stick and to largely save time and costs. CONSTITUTION: A method for preparing D-type lactic acids from sugar through fermentation comprises the steps of: adding microorganisms to sugar in a fermentation reactor and preparing a fermented liquid; adding a sterilized stick to the fermentation reactor and adsorbing lactic acids; isolating the lactic acid-adsorbed activated carbon stick from the fermentation reactor and precipitating the lactic acid-adsorbed activated carbon stick in a collection reactor; and desorbing lactic acids in an acetic solvent contained in the collection reactor and collecting D-type lactic acids. [Reference numerals] (AA) Fermentation reactor; (BB) Move after taking out