The influence of extracting agent temperature on the process of frozen ashberries extracting in the apparatus equipped with the vibrating nozzle
UDC 664.85.037:634.18
Ivanov P.P. , Plotnikov I. B., Khalturin M. A.
Abstract
The usage of frozen raw material while producing extracts makes it possible to lower the dependence of the production cycle on the seasonal prevalence of fruit harvesting and to increase the output of extractive substances due to the destruction of cell membranes by the crystals of ice. At the same time, the usage of frozen raw material presupposes the inclusion of an additional stage in the technological process – defrosting which leads to the extension of the production cycle. The development and analysis of the equipment, which allows combining the processes of defrosting, grinding and extracting, are urgent tasks. The current studies have established the influence of the temperature of the supplied extracting agent on the grinding and extracting of frozen fruit raw material in an apparatus with an oscillating nozzle taking frozen ashberries as an example. It has been defined that the increase in the temperature of the supplied extracting agent leads to the growth in grinding degree but it is accompanied by the great energy consumption on the operation of the oscillating nozzle. The analysis of extraction kinetics in the apparatus with the oscillating nozzle, depending on the temperature of the supplied extracting agent, shows that the temperature of the supplied extracting agent doesn't have an influence on the completeness of the extraction of dry soluble substances, but it has a significant effect on the duration of extraction. Based on the conducted researches, the rational temperature of supplied extracting agent has been determined.
Keywords: extractor, vibrating nozzle, extracting agent temperature, defrosting.
The influence of extracting agent temperature on the process of frozen ashberries extracting in the apparatus equipped with the vibrating nozzle
Abstract
The usage of frozen raw material while producing extracts makes it possible to lower the dependence of the production cycle on the seasonal prevalence of fruit harvesting and to increase the output of extractive substances due to the destruction of cell membranes by the crystals of ice. At the same time, the usage of frozen raw material presupposes the inclusion of an additional stage in the technological process – defrosting which leads to the extension of the production cycle. The development and analysis of the equipment, which allows combining the processes of defrosting, grinding and extracting, are urgent tasks. The current studies have established the influence of the temperature of the supplied extracting agent on the grinding and extracting of frozen fruit raw material in an apparatus with an oscillating nozzle taking frozen ashberries as an example. It has been defined that the increase in the temperature of the supplied extracting agent leads to the growth in grinding degree but it is accompanied by the great energy consumption on the operation of the oscillating nozzle. The analysis of extraction kinetics in the apparatus with the oscillating nozzle, depending on the temperature of the supplied extracting agent, shows that the temperature of the supplied extracting agent doesn't have an influence on the completeness of the extraction of dry soluble substances, but it has a significant effect on the duration of extraction. Based on the conducted researches, the rational temperature of supplied extracting agent has been determined.
Keywords: extractor, vibrating nozzle, extracting agent temperature, defrosting.
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