FIELD: agriculture and food-processing industry, in particular, preparing of fresh apples for storage.
SUBSTANCE: method involves sequentially extracting biomass of Mortierella globalpina micromycet using non-polar extractant in supercritical state, water, alkali, water, acid, water, alkali, and water; joining first extract to solid residue for producing of preparation from biomass; sterilizing distilled water, paper wads and smoking paper; preparing 0.02%-potassium permanganate solution, 0.5%-citric acid solution, and 0.005%-suspension of biomass preparation, said solutions and suspension being based on sterilized distilled water; inspecting apples; washing in sweet running water having temperature of 20-30 C; sequentially holding at room temperature in potassium permanganate solution, citric acid solution and biomass preparation suspension during 5 min in each solution and suspension; removing residual solutions and suspension from fruit surfaces using sterilized paper wads; exposing each of fruit opposite sides to ultraviolet radiation during 30 min at power intensity of 1.5-2.5 W/m3; packaging each apple under aseptic conditions in smoking paper and laying in single layer in sterile polymer trays. Method allows shelf life of fresh apples to be increased to 45 days.
EFFECT: increased efficiency of method allowing shelf life of apples to be substantially increased.
