METHOD OF APPLE JUICE CRYOCONCENTRATING Russian patent published in 2023 - IPC A23L2/02 A23L2/08 

FIELD: food industry.

SUBSTANCE: invention relates to production of concentrated apple juice. A method of cryoconcentration of apple juice has been proposed, within the said method freezing is carried out in a container-type cryoconcentrator, and cryoconcentration is carried out in 2 stages: in the first stage, the original apple juice with a solids content of 11.7% is subjected to freezing at a heat exchange surface temperature of minus 3°C until the degree of freezing reaches 55% of the mass of the original solution, the ice is melted and removed from the cryoconcentrator, the resulting concentrate with a dry matter content of 19.2% is sent to the second stage, where freezing is carried out at a heat exchange surface temperature of minus 5°C until the degree of freezing reaches 46% of the mass of the original solution, the ice is melted and removed from the cryoconcentrator and a concentrate with a dry matter content of 28.8% is obtained, while the ice formed at both stages after melting is mixed and sent to a parallel freezing stage at a temperature heat exchange surface minus 3°C until the freezing degree reaches 49% by weight of the original solution, the resulting concentrate with a dry matter content of 11.7% is sent back to the first freezing stage.

EFFECT: invention ensures a reduction in the loss of dry substances in the resulting ice to 1.8% while increasing the concentration of dry substances in apple juice by 2.5 times.

1 cl, 1 dwg, 4 ex