without protein addition (sample no. 3). Use of milk protein in
the recipes, or a higher ratio of saithe to salmon (more than a
ratio of 1:1; sample nos. 1–2), gave increased firmness. Shear
work was modelled as a linear function of the percent of fat
(largely defined by the ratio of salmon to saithe) and the
percentage of protein (based on the protein content of the fish
mixture and the added protein in the milk-based powders) in the
raw fish.