Technology of Increasing the Fish Products Resistance to Oxidative Processes Under Storage Using Protein-Fat Emulsion Effected by Ultrasound and Magnetic Field

Abstract

The article analyzes the research results of using ultrasound oscillations and pulsing magnetic field in order to increase the quality and fasten processing the fish products (sausages, wieners and salami made from minced fish meat). Influence of ultrasound and pulsating magnetic field on resistibility of protein-in-oil emulsion to mechanical and temperature effects, as well as its resistibility to oxidation extend storage terms for minced fish products enriched with protein in-oil emulsions and help to develop the technology for making salami and sausages. Viscosity of protein in-oil emulsion made using magnetic ultrasound and oscillating magnetic field condenses to cream consistency, dispersion of fat balls reaches 4-30 mkm. Such thick emulsions that don’t dilute during thermal processing of minced fish products help to raise the quality of fish sausages, to prolong storage terms of ready-made product by 32-38% due to high resistivity to oxidation. The modern piezoelectric ultrasound installations as well as neodymium magnets have small sizes and low power consumption, can be easily integrated in the permanent production lines of minced fish products. Addition of protein-in-oil emulsions prepared using ultrasound and magnetic field of constant neodymium magnets allows to increase liquid trapping of minced fish, which results in greater product yield and low costs.