Wednesday, May 10, 2017

Protein content of fish

The protein content does not vary greatly and is usually around 16% (although tuna is an exception with over 20%).

The protein content of fish muscle varies with season in some species and where this occurs the protein content varies inversely with the water content.

Plankton-feeding fishes appear to show higher protein values than fishes feeding otherwise. Hibernating carp show a decrease in both protein and free amino acids.
Higher levels of protein are found in the feeding season and less around the spawning season - there are obvious incentives in using fish who high protein content.

Wild fish contained more hemoglobin, greater total serum protein content and higher serum albumin concentration than did the cultivated ones.

The protein quality in terms of amino acid composition is very similar in most fishes though the molluscan and crustacean proteins appear to be rich sources of essential amino acids.

Actomyosin amounts to about 70% of the total protein content of fish muscle. G-actin from cod exists mainly in the form of a dimer of molecular weight of about 150,000, whilst cod myosin has a molecular weight of about 550 000.
Protein content of fish

Popular Posts

Articles around the world

  • The succession of various agricultural technology clusters since the early 19th century has been intricately intertwined with global change, leading to pro...
  • Baking powder revolutionized baking when it emerged in the early 1850s in the United States, providing a convenient premixed leavening agent for consumers....
  • Throughout history, the quest for enhancing athletic performance has been a driving force behind the development of sports drinks. From humble beginnings t...
  • The word "contempt," along with its synonyms, "disdain" and "scorn," carries an air of sophistication reminiscent of Victorian literature. It encapsulates ...