Freshwater fish internals as a promising source of biologically active lipid complexes

Abstract

The research on development of technology of fat extraction from freshwater fish entrails has been carried out. The study of mass composition of freshwater fish internals has shown that the highest content of fat (averaged 13,8 %) is typical for internals of fish like carp, perch, silver carp, pike. The higher content is typical for silver carp (14.4 %) permitting the possibility of its use as a source of lipid complexes. The chemical composition of the internal organs of researched objects has been studied; to justify the rational modes of extracting lipid complexes from freshwater fish internals the methods of extracting fat (thermal, enzymatic and low temperature) have been tested. The quality indicators of raw fat have been analyzed and the conclusion on possibility of combining the ways of oil extraction in order to increase its output and improve the quality characteristics has been made