Process for spinning fish proteins

Details Process for spinning fish proteins Process for spinning fish proteins

A - Human Necessities

23

J

99/51

A23J 3/00 (2006.01) A23J 1/04 (2006.01) A23J 3/28 (2006.01) D01F 4/00 (2006.01)

Patent

CA 1171721

Abstract A process for spinning fish proteins A process for preparing fibres from fish proteins which comprises successively : (a) grinding whole fish or fish pieces in the presence of water, the water to fish ratio being 0.7:1 to 2.5:1 by weight, (b) adding alkali to the ground fish in an alkali to fish ratio of 0.5:1 to 1.5:1 by weight based on dry matter, (c) heating the alkali/fish mixture of step (b) to a tempe- rature of 60 to 100°C for 0.5 to 3 minutes, (d) cooling the mixture of step (c) to a temperature of 35 to 60°C, (e) passing the cooled mixture of step (d) through a colliod mill, eliminating solid particles and optionally concen- trating to obtain a protein solution having a dry mat- ter content of 6 to 10 % by weight, (f) injecting the alkaline solution of step (e) through a spinneret into an aqueous acid medium having a pH of 0.7 to 0.9 and an ionic strength of 2.0 to 2.2 thereby to coagulate the proteins to fibres, (g) washing the fibres of step (f), (h) setting the fibres of step (g) by heating, and (i) neutralising the fibres. Whole fish or fish scraps may be used. The fibres have high nutritive value.

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