| 摘要 |
FIELD: agriculture and food-processing industry, in particular, process for preparing of fresh tomatoes for storage and further usage in space feeding. ^ SUBSTANCE: method involves sequentially extracting biomass of Mortierella elongata micromycet using non-polar extractant in above-critical state, water, alkali, water, acid, water, alkali, and water; joining first extract with 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 0.01%-suspension of biomass preparation, said solutions and suspension being based on sterilized distilled water; inspecting milk ripening stage tomatoes; holding tomatoes in sweet water having temperature of 20-30 C during 10-20 min; washing tomatoes in running water having temperature of 20-30 C; separating stem from tomatoes and sequentially holding at room temperature in potassium permanganate solution, citric acid solution, and suspension of biomass preparation during 5 min in each solution and suspension; removing residual solutions and suspension from fruit surface using sterilized paper wads; applying continuous layer of glue to stem site and adjoining surface having area of 16-25 mm2; exposing each opposite side of each tomato to ultraviolet radiation during 30 min at radiation intensity of 2 W/m3; packaging each tomato fruit under aseptic conditions into sterilized smoking paper and laying in single layer into sterile polymer trays. Method allows shelf life of tomatoes to be substantially increased. ^ EFFECT: prolonged shelf life and provision for using fresh tomatoes in space feeding. |
