Revisiting Chemical and Microbiological Quality and Safety of Fish and Fish Products

Fish and fishery products constitute a primary global food source, providing essential protein and nutrients. Ensuring their safety and quality throughout the supply chain is paramount. The safety and quality of fish and fish products are paramount considerations in the global food industry but their quality and safety may be compromised at various stages of transport, handling, and processing. The major contaminants of fish and fish products are chemical and microbiological in nature. Chemical contaminants commonly found in fish, including heavy metals, pesticides, and persistent organic pollutants which pose significant risks to consumers. Microbiological contaminants are both pathogenic and spoilage microorganisms such as Salmonella, Listeria monocytogenes, and Vibrio spp which are often implicated in foodborne illnesses associated with seafood consumption. This review synthesizes current knowledge on the chemical and microbiological contaminants facing the fish industry while advocating for enhanced regulatory frameworks and sustainable practices to ensure consumer safety as well as modern methods for detecting these microorganisms, including molecular techniques like PCR (Polymerase Chain Reaction) and biosensors that enhance detection sensitivity.