The Quality Changes that Occur During the Frozen Storage of Bonito (Sarda sarda Bloch, 1793) Prepared by Different Treatments

Authors : Hülya TURAN, İbrahim ERKOYUNCU

Pages : 1017-1024

View : 20 | Download : 9

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :Bonitos insert ignore into journalissuearticles values(Sarda sarda Bloch, 1793); frozen with different prefreezing and postfreezing treatments at -35 ºC in an air blast freezer with 5 m/s air velocity were stored at -25,2 ºC for 6 months. We determined the effects on the sensory properties, total volatile basic nitrogen insert ignore into journalissuearticles values(TVB-N); and thiobarbituric acid insert ignore into journalissuearticles values(TBA); values, and the drip loss during the storage period of applying glaze with solution including ascorbic acid for preventing oxidation, of using sodium polyphosphate in order to prevent drip loss during the frozen storage, of removing the internal organs and gills, and of keeping in ice during 24 h prefreezing. The TVB-N content of fish from which the internal organs and gills had been removed was significantly lower. While gutting alone did not affect TBA growth, gutting with icing improved TBA values. Glaze with ascorbic acid was more effective than glaze with water insert ignore into journalissuearticles values(without ascorbic acid); in preventing lipid oxidation. The chemical and sensory quality of all the fish was good during the frozen storage period.
Keywords : Icing, frozen fish, sodium polyphosphate, glaze