The Future on Ice: Emerging Technologies in Fish Processing

The global fish processing industry is undergoing a significant transformation driven by the need for improved product quality, extended shelf life, enhanced safety, and greater sustainability. This paper reviews emerging technologies reshaping the sector, including advanced freezing methods such as ultrasound-assisted and high-pressure freezing, which minimize ice crystal damage and preserve textural and nutritional integrity. Non-thermal processing techniques, including high-pressure processing, pulsed electric fields, and cold plasma, are examined for their ability to inactivate pathogens and extend shelf life while retaining sensory qualities. The integration of automation, robotics, and machine vision in filleting, sorting, and quality inspection is discussed as a means of increasing processing efficiency and reducing labor dependency. Additionally, the paper explores the role of smart packaging, biosensors, and blockchain-based traceability systems in ensuring food safety and supply chain transparency. Environmental considerations, such as waste valorization and energy-efficient cold chain management, are also addressed as critical components of sustainable fish processing. By synthesizing recent advances across these domains, this paper highlights the trajectory of innovation poised to redefine fish processing practices, offering insights for researchers, industry stakeholders, and policymakers seeking to balance technological progress with sustainability and food security goals.