Study of processing and concentration of the meat industry biotechnological raw materials

Abstract

The application of cold in the processes of slaughter animals blood and its components processing is considered to become more and more prospective nowadays. Therefore, a special role is given to the low-temperature concentration by blood plasma freezing, which ensures preserving the entire complex of biochemical compounds in solution to the maximum extent. The process of cattle blood plasma concentration in a continuous screw crystallizer was studied in the work. It was revealed that the maximum amount of ice is frozen out of the blood plasma at the boiling point of the refrigerant equal to minus 25…24 °C, the rotational speed of the crystallizer screw of 0.06 s-1. It was found out that an increase in the initial content of soluble compounds in the initial blood plasma contributes to an increase in the content of dry matter in the concentrated plasma. Analysis of the process of blood plasma and frozen ice centrifugal separation proved that the optimal dry matter content in a solution of molten ice equal to 0.182 % corresponds to a dry matter content in freeze-concentrated blood plasma equal to 22.34 % and a separation factor equal to 515.25.