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nature : the use of microbial carbohydrate production of lactic acid from the process. According to the fermentation process of the formation of different products can be divided into lactic fermentation with fermented lactic fermentation and dysplasia. Former fermented lactic acid produced results, which in addition to generating lactic fermentation, and also create CO2 acid. Industrial production common lactic acid fermentation bacteria Lactobacillus dehrueckii (Lactobacillus delbrueckii) and Lai Lactobacillus (Lactobacillus leichmannii). In recent years, use of Rhizopus oryzae (Rhigopus oryzae) production of L-lactic acid, acid production capability, the fermentation broth containing L-lactic acid in 90% or more. From broth acid extraction, using traditional technology and lime, and then decomposed into sulfate acid, bleaching, concentrated and crystallized from. In recent years, use of deep extraction or esterification agent after the distillation and extraction.
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