Method for reducing acidity of microbe of hippophas juice

The invention relates to an acidity-reducing processing technology, in particular to a method for reducing the acidity of the hippophas juice by adopting malic acid and lactic acid fermentation. The method for reducing the acidity of the hippophas juice comprises the following steps of: (1) filtering step of the hippophas juice; (2) fermentation step of malic acid and lactic acid fermentation; and (3) high-temperature sterilization step. Compared with the prior art, the method for reducing the acidity of the hippophas juice has the advantages of greatly reducing the content of malic acid in the hippophas juice without residual contaminant by using the malic acid and lactic acid fermentation and Lalvin 31MBR strain fermentation. The method for reducing the content of the malic acid in the hippophas juice can reduce the acidity of the hippophas juice by 45.59-38.28g/l and averagely reduce by 40.9g/l, improve volatile acid by 0.16-0.49g/l and averagely improve by 0.36g/l, improve the pH value by 1.2-0.96 and ave