Preparation method of concentrated sugarcane juice

The invention discloses a preparation method of concentrated sugarcane juice. The preparation method comprises the following steps of performing constant-temperature enzymolysis, performing heating for enzyme deactivation, performing filtration for the first time, performing vacuum concentration, performing UHT sterilization and performing filtration for the second time. The preparation method ofthe concentrated sugarcane juice is simple in technological processes and convenient to operate; besides, the obtained product namely the concentrated sugarcane juice can completely reserve natural flavor of sugarcane and minerals and trace elements rich in the sugarcane; in addition, the product is good in sterilization effects, free from pathogen pollution, good in filtration effects and free from grainy residues; and besides, preservatives and food additives do not need to be added, and the concentrated sugarcane juice is fresh in taste, and sweet and mellow in aftertaste, and can be used for high-end beverages and