METHODS FOR PURIFYING LACTIC ACID FROM LACTIC ACID FERMENTED BROTH COMPRISING AMMONIUM LACTATE

摘要

PURPOSE: A method for purifying lactic acid from lactic acid-fermented liquid is provided to improve fermentation yield. CONSTITUTION: A method for purifying lactic acid from lactic acid-fermented liquid containing ammonium lactate comprises: a step of adding calcium salt to lactic acid-fermented liquid; and a step of isolating or purifying lactic acid from the calcium lactate. The calcium salt includes calcium carbonate, calcium hydroxide, calcium chloride, or calcium phosphate.