The rheological and nutritional properties of giant squid (Dosidicus gigas) surimi prepared by acid-saline leaching and the generation of a sol colloid with sodium citrate were evaluated. The application of 0.25, 1.27, 2.0, 3.0 and 7.0% sodium citrate produced a sol colloid from giant squid myofibrillar proteins. The addition up to 3.0% of sodium citrate presents a positive linear correlation with the properties of hardness and strength, from 2.0% there is a directly proportional increase with the modulus of elasticity of the gel. The addition of citrate as a cryoprotectant in the product did not improve the protective effect during storage at -20 °C for 72 hours. The replacement of NaCl by sodium citrate improved the texture of the surimi, a change that in terms of healthy eating contributes to the cleanliness of the nutritional label of the product by reducing its sodium content to 5...

The author is grateful to Prof. F. Miranda (UNSA) and Prof. R. Gilbert (UNL) for helpful discussions, and to the reviewers of this manuscript for valuable comments. Partial financial support of CONCYTEC is gratefully acknowledged. Preliminary experimental work was performed in the laboratories of the Chemical Engineering Department of the Universidad Nacional de San Agustin (Peru).