TRANSFORMANT FOR PRODUCING LACTIC ACID HAVING HIGH OPTICAL PURITY, AND METHOD FOR PRODUCING LACTIC ACID USING SAME

The present invention relates to a biological method for producing lactic acid using microorganisms, to a transformant capable of producing lactic acid having high optical purity at a high yield by using a convenient and economical method, to a method for producing the transformant, and to a method for producing lactic acid using the method for producing the transformant. According to the present invention, lactic acid having high optical purity can be conveniently produced without strictly controlling production conditions, such as pH conditions, or the complicated controlling of metabolic paths in microorganisms, and since a separate additional process of separating and purifying the lactic acid is not required, the number of processes required for producing lactic acid can be significantly reduced in order to not only greatly reduce production costs, but also eliminate environmental problems caused by precipitated wastes, in order to obtain environmental protection effects.