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Review
. 2024 Nov;31(53):62230-62248.
doi: 10.1007/s11356-023-28610-w. Epub 2023 Jul 11.

Tuna sidestream valorization: a circular blue bioeconomy approach

Abhilash Sasidharan  1   2 , Turid Rustad  3 , Giovanni M Cusimano  4
Affiliations
Review

Tuna sidestream valorization: a circular blue bioeconomy approach

Abhilash Sasidharan et al. Environ Sci Pollut Res Int. 2024 Nov.

Abstract

Tuna is an economically significant seafood, harvested throughout the world, and is heavily traded due to its high nutritional quality and consumer acceptance. Tuna meat is rich in essential nutrients such as amino acids, polyunsaturated fatty acids (PUFA), and trace minerals. The huge volume of solid and liquid sidestreams generated during the processing stages of tuna is creating environmental and socioeconomic challenges in coastal areas. Different products such as fish meal, protein hydrolysates, collagen, enzymes, oil, and bone powder can be produced from tuna sidestreams. Using different nutrient recovery technologies like enzymatic hydrolysis, chemical processing, and green technologies, various categories of product value chains can be created in line with the conventional processing industry. This review attempts to provide a route map for the tuna industry for achieving the circular blue-bioeconomic objectives and reorient the irregular utilization pattern into a sustainable and inclusive path.

Keywords: Animal nutrition; Bioactive peptides; Collagen; Protein recovery; Seafood sustainability; Tuna processing.

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Conflict of interest statement

Declarations. Ethical approval and consent to participate: Not applicable. Consent for publication: Not applicable. Competing interests: The authors declare no competing interests.

Figures

Fig. 1
Fig. 1
Tuna sidestream generation and yield
Fig. 2
Fig. 2
The circular blue economy perspective of tuna sidestream valorization
Fig. 3
Fig. 3
Green technologies for tuna sidestream valorization
See this image and copyright information in PMC

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