Efeito da aplicação da água eletrolisada fracamente ácida em peitos de frango resfriados

• Ano de defesa: 2015
• Autor(a) principal: Ruviaro, Amanda Roggia
• Orientador(a): Cichoski, Alexandre José
• Banca de defesa: Wagner, Roger , Nespolo, Cássia Regina
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Santa Maria; Centro de Ciências Rurais
• Programa de Pós-Graduação: Programa de Pós-Graduação em Ciência e Tecnologia dos Alimentos
• Departamento: Ciência e Tecnologia dos Alimentos
• País: Brasil
• Palavras-chave em Português: Eletrólise; Desinfecção; Microbiologia; Oxidação; pH; Carne de frango; Água eletrolisada fracamente ácida
• Palavras-chave em Inglês: Electrolysis; Disinfection; Microbiology; Oxidation; Chicken meat; Slight acid electrolyzed water
• Área do conhecimento CNPq: CNPQ::CIENCIAS AGRARIAS::CIENCIA E TECNOLOGIA DE ALIMENTOS
• Link de acesso: http://repositorio.ufsm.br/handle/1/17601

Chicken meat may suffer rapid deterioration because of spoilage microorganisms. The type and number of microorganisms define quality of the product. Many stuidies show the use of slight acid electrolyzed water (sAEA) with high free clorine concentration (FCC) has been investigated to control and reduce the microbial growth of chiken meat. However sAEA with low levels of free clorine were not studied. In the current study, the stability of sAEA with low free clorine concentration and its application in chicken breast meat was assessed by evolution of microorganisms and lipid oxidation during storage. To acess the stability, sAEA with pH 6 and 10 mg/L of FCC was diluted for 2 and 5 mg/L and its oxidation-redution potential (ORP), pH and FCC were determining over 5 days of storage at 4 °C. The sAEA was applied in chicken breast meat by immersion and by the combination of spray and immersion to evaluate the shelf-life during storad 4 °C for 6 days. The shelf-life was evaluated by mesophilic and psychotrophic bacteria growth, pH value and lipi oxidation by TBARS levels. All of sAEA maintained their ORP, pH and FCC characteristics during the storage. The chicken breast meat showed varied initial number of microorganisms, which influence the redution promoted by sAEA treatment. Higher mesophilic bacteria number show lower redution by sAEA. In general, sAEA was more effective in reducing mesophilic than psychotrophic bacteria after treatment application. The chicken breast pH were not affected by sAEFA. However, anyone sAEA application mode increase the shelf-life of chicken breast meat. TBARS values were confuse, and further studies are necessary to clarify the sAEA action mechanism front lipid oxidation.