Hofmann, AlexanderAlexanderHofmannAtamaniuk, IrynaIrynaAtamaniukKuchta, KerstinKerstinKuchta2026-01-142026-01-142025-12-19Green Chemistry Series 90: 186-266 (2025)https://hdl.handle.net/11420/60886Marine-derived proteins and peptides represent a unique resource with exceptional nutritional, functional, and bioactive properties. This chapter explores the diverse sources of marine proteins, including fish, molluscs, crustaceans, algae, and microorganisms, and highlights their structural and compositional characteristics. The bioactive potential of marine peptides, including antioxidant, antimicrobial, antihypertensive, anti-inflammatory, and anticancer properties, is discussed alongside their industrial applications in food, nutraceuticals, pharmaceuticals, and biomaterials. Furthermore, this chapter reviews common and novel extraction and purification techniques that enhance the recovery and functionality of marine-derived proteins and peptides. Future directions for research and development should focus on optimising bioavailability, enhancing bioactivity, and expanding industrial applications. By leveraging innovative technologies and sustainable practices, marine-derived proteins and peptides have great potential for addressing global challenges in nutrition, health, and sustainability.enNatural Sciences and Mathematics::579: Microorganisms, Fungi and AlgaeBook Part10.1039/9781837678198-00186Book Chapter