Off-Flavors in Aquacultured Fish: Origins and Implications for Consumers

Autor(es)

Moretto, Jessica A. ; Freitas, Paloma N. N. ; Souza, Juliana P. ; Oliveira, Thalita M. ; Brites, Isabella ; Pinto, Ernani

• Tipo de documento: Artigo Científico
• Fonte: FISHES; v. 7, n. 1, p. 12-pg., 2022-02-01.

Resumo

Off-flavors in fish and water are considered a worldwide problem. Several factors, such as the presence of phosphorus, micronutrients, and organic matter, contribute to phytoplankton proliferation and the production of off-flavors. Geosmin and 2-methylisoborneol are the most common off-flavors that confer the smell of earth or mold to water and fish. These metabolites are not considered toxic, but they can be easily transferred from water to living organisms and accumulate in the biota, up the trophic levels and to consumers, including fish species. Numerous processes have been studied to eliminate or reduce the presence of off-flavors in recirculating aquaculture systems. Managing off-flavors must be eco-friendly and consumer-friendly. Strategies against off-flavors must be efficient and low-cost. However, these solutions may be different for each fish production system. We review herein the main compounds produced by cyanobacteria that can accumulate in fish used in aquaculture that can affect the quality of food, as well as production costs and consumer preference. (AU)

• Processo FAPESP: 21/00149-0 - Tratamento e fracionamento seletivo de cianobactérias em florações para produção de insumos de valor agregado
• Beneficiário: Ernani Pinto Junior
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 13/05969-0 - Prospecção de compostos orgânicos voláteis produzidos por cianobactérias e seus efeitos na auto-regulação fisiológica de Microcystis sp.
• Beneficiário: Simone Vieira da Silva
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 13/07914-8 - FoRC - Centro de Pesquisa em Alimentos
• Beneficiário: Bernadette Dora Gombossy de Melo Franco
• Modalidade de apoio: Auxílio à Pesquisa - Centros de Pesquisa, Inovação e Difusão - CEPIDs
• Processo FAPESP: 11/51950-3 - Prospecting volatile compounds produced by Brazilian cyanobacteria with allelopathic effects
• Beneficiário: Ernani Pinto Junior
• Modalidade de apoio: Auxílio à Pesquisa - Parceria para Inovação Tecnológica - PITE