Research progress of technological processes of lactic acid production by simultaneous saccharification and fermentation

As important chemical raw materials,lactic acid and its derivatives have been widely used in food,pharmacy,textile and other chemical related industries.In recent years,simultaneous saccharification and fermentation(SSF)has been gradually applied to the lactic acid fermentation process.In this paper,the effect of such factors as raw materials,strains,glucoamylase and temperature on the productivity of SSF are reviewed,these factors and their interactions are discussed and development of the lactic acid production by SSF is prospected.Compared with traditional fermentation,SSF has the advantage of shortening the production cycle,saving equipment investment,increasing productivity,and reducing energy consumption.