Trends in fisheries waste utilization: a valuable resource of nutrients and valorized products for the food industry

Abstract

The rise in fisheries production worldwide has caused a remarkable increase in associated anthropogenic waste. This poses significant concerns due to adverse environmental impacts and economic losses. Owing to its renewability, high abundance, and potential as a rich source of many nutrients and bioactive compounds, strategies have been developed to convert fish waste into different value-added products. Conventional and improved methods have been used for the extraction of biomolecules from fish waste. The extracted fish waste-derived value-added products such as enzymes, peptides, fish oil, etc. have been used to fortify different food products. This review aims to provide an overview of the nature and composition of fish waste, strategies for extracting biomolecules from fish waste, and the potential application of fish waste as a source of calcium and other nutrients in food fortification and animal feed has been discussed. In context to fishery waste mitigation, valorization, and circular bioeconomy approach are gaining momentum, aiming to eliminate waste while producing high-quality value-added food and feed products from fishery discards.

Keywords:

• Bioactive compounds
• circular bioeconomy
• fish waste
• food nutrients
• sustainability
• valorization

Acknowledgment

This review is written as an activity of the project “Valorization of fishery waste for development of biofertilizer, biorefinery, biofeed and recovery of biopolymer” which has received financial support by the Council of Scientific and Industrial Research (CSIR), New Delhi, India, under the project MLP-1170.

Author’s contributions

Shifa Naseem wrote the original draft and prepared the figures and tables. Arfin Imam and Anjan Ray edited the manuscript. Anantha Sreepada Rayadurga conceptualized the project. Sunil Kumar Suman reviewed and edited the manuscript. All the authors read and approved the final manuscript.

Compliance with ethical standards

Research involving Human participants or Animals: The authors declare no research involving human or animal participants.

Consent for publication

All authors approve the manuscript.

Disclosure statement

The authors have no relevant financial or non-financial interests to disclose.

Ethics approval

This work is not submitted for consideration in another journal and has not been published elsewhere in any form or language.

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Not applicable.

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Additional information

Funding

This study was financially supported by the Council of Scientific and Industrial Research (CSIR), New Delhi, India, under the project MLP-1170.