The application of hydrodynamic cavitation methods to increase the efficiency of the process of extracting biologically active substances from the walnut septums

Abstract

The article presents experimental studies of the intensification of the process of extracting biologically active substances from the walnut septum using the mechanisms of the method of discrete-pulse energy input (DPEI) in pulsating dispersers. On the basis of the obtained results of studies of the effects of the shock action of the liquid flow and hydrodynamic cavitation on the physicochemical parameters of the aqueous extract of walnut septum, the effectiveness of the application of the most rigid mechanism of the method of DPEI is shown. In the course of experimental studies, it was established that the amount of dry substances released during the extraction process in a cavitation-type pulsating disperser is approximately 2 times greater than in an impact-type pulsating disperser. The use of hydrodynamic cavitation made it possible to maximally extract biologically active substances from walnut partitions in 20 minutes of cavitation treatment, which proportionally exceeds the shock effect of hydrodynamic impact by 57 %. It has been established that the cavitation effect is the most effective mode of the method of DPEI when applied in the extraction processes from plant raw materials, which is currently one of the most effective ways to achieve high-energy indicators in food and chemical technologies for obtaining thermolabile substances.

Keywords

• method of discrete-pulse energy input
• hydrodynamic cavitation
• extraction
• walnut septum