RESEARCHING OF MICROBIOLOGICAL PARAMETERS OF APPLE JUICE, PROCESSED BY SHUNGITE

The results of the conducted studies showed a decrease in quantity of microorganisms in 1.5 ... 100 times, and in some samples, processed by shungite at different technological parameters, when compared to control sample, they were not identified at all. The quantity of bacteria in juice processed at 60°C and with adsorbent concentration of 2.0% mass, decreases from 1.1 • 103 to 0.4 • 103 and to 1.7 • 101 units when duration of processing constitutes 20 min and 40 min respectively. Under the same conditions and with duration of juice processing of 60 minutes, bacteria are completely adsorbed by shungite. Under the studied technological parameters of processing apple juice by shungite, the quantity of fungi decreases in 1.5 ... 2.5 times, compared with control sample, and with adsorbent concentration of 2%‘ mass, fungi are completely removed from the juice. Yeast was not identified in samples, processed by shungite with concentration of 1.0,1.5, 2.0 % mass and with duration of 60 minutes. In juice, processed by adsorbent for 40 min, small quantity of yeast was identified. As control sample apple juice, stilled under the experiment conditions without being processed by shungite, was used. When processing apple juice by shungite, simultaneously with the adsorption of harmful microorganisms, colloidal substances are also adsorbed, and that in turn promotes clarification of juice. This work proves the expediency of adsorptive processing of apple juice by shungite with fraction of 1 ... 3 mm. Rational parameters of apple juice processing, under which the maximum reduction of microbial insemination is reached, are the following: shungite concentration of -1.5 ... 2% mass., temperature - 60°C,