INTENSIFICATION OF THE PROCESS OF EXTRACTING PECTIN FROM SUGAR PRODUCTION WASTES

Experimental research of acid extraction of pectin containing raw materials (beet pulp) is highlighted with the use of a new model of the mixing element compared to the usual lattice mixer. The experimental setting and the method of processing the results of the study of extracting pectin substances from pectin containing raw materials (beet pulp) with the use of a new combined mixing element have been developed. Mathematical models are constructed in the form of nonlinear regression equations based on the method of planning a multifactor experiment with the input parameters of temperature, duration and duty of water module. It is found that the main influence on the change of output parameters is the input variables of temperature and duration of the process. Graphical dependences of quantitative and qualitative characteristics of pectin extracts (concentration of pectin substances, molecular mass, complex and drag-forming ability) are presented depending on the input parameters of temperature and duration of the extraction process of pectin substances. Analysis of these characteristics allowed to determine rational input parameters of the extraction process of pectin substances. Rational working parameters of the process of acid extraction of pectin substances from beet pulp using a new method of the process intensification are the temperature 60...70 ºС, duration – 1... 1,1 hours and hydro module 8...10. According to the results of studies, the feasibility of using a new intensification method was found. Further implementation of these results in the food and processing industry enables the development of a wide range of pectin products (extracts, liquid and dry pectin concentrates)