Influência dos processos de lavagems de tipos de crioprotetores na produção de surimi de tilápia: Dayse Lícia de Oliveira. -

Detalhes bibliográficos
Ano de defesa: 2015
Autor(a) principal: Oliveira, Dayse Lícia de [UNESP]
Orientador(a): Não Informado pela instituição
Banca de defesa: Não Informado pela instituição
Tipo de documento: Dissertação
Tipo de acesso: Acesso aberto
Idioma: por
Instituição de defesa: Universidade Estadual Paulista (Unesp)
Programa de Pós-Graduação: Não Informado pela instituição
Departamento: Não Informado pela instituição
País: Não Informado pela instituição
Palavras-chave em Português:
Sal
Link de acesso: http://hdl.handle.net/11449/138414
http://www.athena.biblioteca.unesp.br/exlibris/bd/cathedra/15-04-2016/000863686.pdf
Resumo: Surimi is a concentrate of myofibrillar proteins made of fish muscles that are ground, washed and added of cryoprotective agents. This study aimed at characterizing the surimi of tilapia fish obtained from variations at the washings (distilled water or distilled water + NaHCO3 + NaCl) and cryoprotectors (NaCl + sacarose or sorbitol + sodium tripolyphosphate), using a factorial design 2 x 2. The treatments were evaluated regarding to proximate composition, non-nitrogen protein (NNP) removal and yield. After cooking (90°C/30min), instrumental texture and color of the surimi gels were evaluated. Then, the surimi was used for the elaboration of a surimi product and sensory analysis regarding to global acceptance. The protein and moisture contents in the surimi were not influenced either by washings or by cryoprotectors, while the ash content was higher when NaCl and sucrose were the cryoprotectors and the yield was higher when only distilled water was used for the washings. The highest lipid removal was achieved with the use of distilled water for the washings and NaCl and sucrose as the cryoprotectors. The highest NNP removals were achieved at both combinations: water for washings and NaCl and sucrose as the cryoprotectors and water with salts for washings and sorbitol and sodium tripolyphosphate as the cryoprotectors. The different treatments produced surimi gels with similar colors and texture. The surimi product was approved by 55% of the panelists