Introduction:

Collagen has been obtained mainly from bovine and porcine species for use in the food, cosmetic, biomedical, and pharmaceutical industries. However, several conditions have caused that, in recent years, these productions have started to be developed from marine species.

Objective:

To present an updated overview of the status of collagen isolation from fish by-products.

Materials and Methods:

A bibliographic search was done based on results published up to the year 2020.

Results and Discussion:

Due to the high demand for collagen, there is an urgent need to find sustainable and cheaper sources for its production. Marine biomass is becoming a more attractive source of collagen. There are different methods of isolation of this product of which enzymatic hydrolysis is the most promising. Its applications are varied and new fields of use in various industries, as well as in medicine and biotechnology, are becoming known.

Conclusions:

The wide variety of applications of collagen and its important roles in the future of tissue engineering make it a key biopolymer for human health and wellness.

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