METHOD FOR PRODUCTION OF POWDERED ICE-FORMING BIOLOGICAL REAGENT Russian patent published in 2012 - IPC A23L3/44 

FIELD: food industry.

SUBSTANCE: invention relates to food industry. According to the proposed method production of a powdered ice-forming biological reagent is performed by way of moisture evaporation (under vacuum) from liquid microbial or protein suspension with initial temperature equal to 26°C in flat-bottomed pans with walls 30-50 mm high containing porcelain balls with a 3 -7 mm diameter in a layer up to 50% of the pans walls height. The suspension poured into the pans in a layer height whereof is twice as little as that of the balls layer is divided by the balls into a multitude of small volumes with the pans subsequently covered with unwoven textile. Then follows the drying process during 9.0 - 12.5 hours with continual adjustable vacuumisation, controllable in terms of residual pressure in the chamber at four temporal stages of drying.

EFFECT: method allows to produce the end product in powdered form convenient for application and ensures high stability of the reagent during storage.

5 tbl, 2 ex