What are the N-containin non-protein extractive that occur in fish muscle tissue and their biological functions.

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Expert Solution

N-containin non-protein compounds

Histidine - Intracellular buffering
Trimethylamine oxide - Protects from the protein-destabilizing effects of urea
Taurine - Osmoregulation, antioxidation, membrane stabilization, and calcium signaling modulation

Free histidine and imidazole dipeptides serve as biological buffers, a transport mechanisms for copper and zinc.

Trimethylamine oxide is a detoxification product of trimethylamine and it participates in the osmoregulation of marine species and it stabilizes elasmobranch protein structure.

The taurine participates as an osmolyte in cell volume regulation and in teleosts, the condensate bile acids with taurine is used for the synthesis of bile salts.

gladiator answered 1 year ago

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