Insights into fishery by-product application in aquatic feed and food: a review

• Published in: Aquaculture international Vol. 32; no. 5; pp. 5851 - 5910
• Main Authors: Naghdi, Shahab, Rezaei, Masoud, Heidari, Mahshid Gharib, Tahergorabi, Reza, Lorenzo, Jose M., Mirzaei, Fatemeh
• Format: Journal Article
• Language: English
• Published: Cham Springer International Publishing 01.10.2024; Springer Nature B.V
• Subjects: Animals; Aquaculture; Aquatic animals; Bioactive compounds; Biomedical and Life Sciences; By products; Carotenoids; Chitin; Chitosan; Clams; Fatty acids; Feed industry; Feeds; Fish; Fisheries; Fishery industry; Food; Food supply; Foods; Freshwater & Marine Ecology; Human food; Life Sciences; Marine molluscs; Mollusks; Operating costs; Peptides; Polyunsaturated fatty acids; Processing fishery products; Production costs; Proteins; Review; Seafood; Seafoods; Shellfish; Underwater resources; Zoology; Seafood; By-products; Bioactive compounds; Functional foods; Aquaculture
• ISSN: 0967-6120; 1573-143X
• DOI: 10.1007/s10499-024-01447-x

Today, the fishery industry plays a crucial role in meeting the global demand for human food. However, the increased production and processing of aquatic animals like fish, shellfish, squids, and bivalves have resulted in a significant amount of waste generation. This waste, which includes fish heads, viscera, skin, bones, scales, exoskeletons, pens, ink, and clam, account for approximately 30–70% of the total aquatic product. The accumulation of this waste not only adds to production costs but also poses a serious environmental challenge. To address these issues, researchers have turned to utilizing fish by-products to extract bioactive compounds such as protein hydrolysate, chitin, chitosan, carotenoid, carotenoproteins, omega-3 polyunsaturated fatty acids, and gelatin. These compounds possess desirable properties such as antioxidant, antimicrobial, and therapeutic effects. As a result, they have grabbed the attention of the food and feed industry for various applications. In this article, we aim to provide a concise review of the bioactivity properties of these compounds and their potential applications specifically in aquaculture and seafood processing.