Conservação de filés de tilápia-do-nilo (Oreochromis niloticus) em salga seca e salga úmida
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Data
2008-12-01
Autores
Aiura, F. S. [UNESP]
Carvalho, M. R. B. [UNESP]
Viegas, E. M. M. [UNESP]
Kirschnik, P. G.
Lima, T. M. A. [UNESP]
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Universidade Federal de Minas Gerais (UFMG), Escola de Veterinária
Resumo
Acompanhou-se o desenvolvimento dos processos da salga em salmoura saturada (salga úmida) e salga seca de filés de tilápia-do-nilo (Oreochromis niloticus) e avaliaram-se algumas características indicativas de qualidade do produto durante a estocagem. Os processos foram acompanhados por 156 horas na salga úmida e por 96 horas na salga seca, e os filés salgados foram estocados, respectivamente, por 60 e 45 dias à temperatura ambiente. Os teores máximos de cloreto nos filés (14%) foram atingidos com 72 horas na salga úmida e com 36 horas na salga seca. Os filés de tilápia salgados em salmoura mantiveram as características próprias do produto por um período de 45 dias, e os submetidos à salga seca apresentaram baixo teor de umidade (6%) e alta concentração de extrato etéreo (4,6%). Recomenda-se somente o processo de salga em salmoura saturada como forma de conservação dos filés de tilápia-do-nilo.
The processes of salting of Nile tilapia fillets (Oreochromis niloticus) submitted to saturated brine and dry salting were observed, and some characteristics that indicate the quality of the product during the storage were evaluated. The brine saturated process was followed up to 156 hours and the dry salting was followed up to 96 hours. When the salting finished, fillets were stored for 45 (dry salting) and 60 days (saturated brine), respectively. The highest values for chloride in fillets (14%) were reached within 72 hours in brine salting and 36 hours in dry salting. The tilapia fillets salted in brine kept the proper characteristics of the product for a period of 45 days and the fillets submitted to dry salting showed low moisture ratios (6%) and a high concentration of lipids (4.6%). Thereby, it is only recommended the salting process in saturated brine to be used as a mean of conservation for Nile tilapia fillets.
The processes of salting of Nile tilapia fillets (Oreochromis niloticus) submitted to saturated brine and dry salting were observed, and some characteristics that indicate the quality of the product during the storage were evaluated. The brine saturated process was followed up to 156 hours and the dry salting was followed up to 96 hours. When the salting finished, fillets were stored for 45 (dry salting) and 60 days (saturated brine), respectively. The highest values for chloride in fillets (14%) were reached within 72 hours in brine salting and 36 hours in dry salting. The tilapia fillets salted in brine kept the proper characteristics of the product for a period of 45 days and the fillets submitted to dry salting showed low moisture ratios (6%) and a high concentration of lipids (4.6%). Thereby, it is only recommended the salting process in saturated brine to be used as a mean of conservation for Nile tilapia fillets.
Descrição
Palavras-chave
peixe, métodos de salga, rancificação, tilápia-do-nilo, estocagem, fish, salting methods, rancidity, Nile tilapia, storage
Como citar
Arquivo Brasileiro de Medicina Veterinária e Zootecnia. Universidade Federal de Minas Gerais, Escola de Veterinária, v. 60, n. 6, p. 1531-1537, 2008.