450 resultados para estocagem refrigerada


Relevância:

10.00% 10.00%

Publicador:

Resumo:

In the process of artificial incubation of fertile eggs of chicken (Gallus gallus domesticus) there are procedures that, they are not hindered the birth, they cause embryonic mortality. Handlings before incubation as disinfection and storage are capable to reduce the embryonic if accomplished of inadequate way viability. Already in the incubation process properly says, irregularities in variables as temperature, turning, humidity and ventilation in the incubator reduce the hatchability, what means that, of the total of fertile eggs there is reduction in the number of born chicks, there is like this the reduction of profit of the incubator, being necessary an analysis of which they interfered in the birth

Relevância:

10.00% 10.00%

Publicador:

Resumo:

La Encefalopatía Espongiforme Bovina (EEB) es una enfermedad degenerativa mortal y transmisible del sistema nervioso central del ganado, con largo período de incubación y clínicamente se caracteriza por sintomas nerviosos, la reacción exagerada a los estímulos externos y dificultad locomoción. La EEB es una enfermedad del grupo de las Encefalopatías Espongiformes Transmisibles (EET), y consiste en una enfermedad zoonótica transmitida por comer alimentos contaminados con una proteína llamada príon. Se discute el control de enfermedades, celebrada en la carne de vacuno refrigerada masacre a través de las Material Especificado de Riesgo (MER) que son el cerebro, cráneo, ojos, amígdalas, médula espinal, gânglio del trigémino, gânglios de la raiz dorsal y el íleon distal. Estos organismos pueden contener el agente de la EEB y transmitir la enfermedad. Los controles se basan en la ley brasileña y las normas internacionales que dictan la recogida y destrucción de estos materiales, sino también las normas para la comercialización de productos procedentes de rumiantes, así como la prohibición de alimentar rumiantes com productos de origen animal

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Relevância:

10.00% 10.00%

Publicador:

Resumo:

This paper reports the data on the cuiabana sausage historical aspect, and from the study performed on its technical/sensory characteristics. Four formulations of cuiabana-type sausage were prepared, varying the basic raw material (bovine, chicken and swine meats). For processing these sausages, the raw meats (beef, chicken and pork) were cut into cubes and together with the other ingredients (garlic, cheese, pepper and chives) they were weighed and homogenized. The resulting mixture was refrigerated for 24 hours for intensifying the flavor. Thereafter, it was stuffed into natural casings. These prepared samples were characterized on the physical-chemical profile and on the shelf life under refrigeration for over a seven day-storage in order to assess the microbiological contamination (total coliforms and fecal thermotolerant bacteria), sulphite-reducing clostridium, Salmonella spp., coagulase-positive Staphylococcus), and pH. The sensory evaluation and statistics analysis were carried out on the different types of laboratory- processed cuiabana sausage. Introducing over time changes in the cuiabana sausages formulation are positive factors; therefore, variations in the formulations it is feasible to get a better final product than that original one, and it might be resulted from the market demand.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Pós-graduação em Microbiologia Agropecuária - FCAV

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Pós-graduação em Ciência e Tecnologia Animal - FEIS

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Fresh sausages are cured meat products that may be contaminated with Staphylococcus aureus during the manufacturing procedure, which is frequently related with inadequate handling practices. The use of nitrite in meat products has proven efficacy against Clostridium botulinum, and studies indicate that bactericidal action against S. aureus depends on factors that are intrinsic and extrinsic to the product. The objective of the present study was to evaluate the effect of nitrite concentration, and pH on S. aureus and psychrotrophic autochthone microbiota in fresh sausages stored at different times and temperatures. Fresh sausage were produced at nitrite concentrations 50, 150 and 200ppm and contaminated with S. aureus. The sausages were storage at refrigeration (7 and 12 degrees C) and the quantification of S. aureus and psychrotrophic microorganisms was carried out on days 0, 2, 4, 7, and 10. Results showed that nitrite concentrations and the temperatures used had minimal effect on the multiplication of S. amens and psychrotrophic autochthone microbiota. Final counts depended only on the length of storage: at the end of 10 days, counts were statistically similar in the different groups, showing that temperature and nitrite concentrations used did not control microbial growth effectively. It is suggested that the product should be stored below 7 degrees C or at freezing temperatures for greater microbiological stability.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

The high perishability of the onion has limited its conservation period and caused great post-harvest losses. The need of consuming fresh products has led the market of minimally processed products to considerably rise. Cut operations during the minimal processing may not only cause important biochemical reactions in the onion tissues, but also affect its sensorial quality, resulting in a drastic reduction in the post-harvest life of the product. In this study the influence of different cut types was assessed on the quality of minimally processed onions. 'Baia Periforme'onions were transported to the laboratory, where they were selected, cleaned, classified, peeled, minimally processed into slices, grated and chopped, and subsequently sanitized for 10 minutes in sodium hypochlorite at 100 mg L-1. The product was kept on polystyrene trays covered with plastic film (PVC) as 80 g portions and conserved in a cold chamber at 5 +/- 1 degrees C and 85 +/- 5% RH, during 6 days. Physical, chemical and physico-chemical assays were carried out. Statistical design was completely randomized with 3 treatments and 3 replications (plot group) and 5 replicationss for the control group. For sensorial analysis (aspect and smell), 10 replications were used. To compare means, Tukey test at 5% significance was adopted. During the refrigerated conservation, sliced onions kept more stable levels of soluble solids, titratable acidity, total sugars, reducing and non-reducing sugars. The grated onion was superior considering the sensorial characteristics, indicating that the cut types interfered in these features and the grated onion was more accepted by evaluators.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Relevância:

10.00% 10.00%

Publicador:

Resumo:

O Brasil ocupa uma posição de destaque como produtor e exportador de carne de frango. Um parâmetro importante na qualidade da carne de frango é a quantidade de água absorvida pela carcaça durante o processamento. No Brasil, o resfriamento das carcaças é feito por imersão em água refrigerada e, neste processo, a carcaça é reidratada, recuperando a água perdida durante o transporte e as operações iniciais. Este projeto teve como objetivo avaliar os fatores extrínsecos que podem influenciar a absorção de água pela carne de frango. Para isso, foram utilizados 144 frangos da linhagem Cobb, divididos em 24 grupos de seis aves. Aos 42 dias de idade, uma ave de cada grupo, com peso variando até 10% para mais ou para menos, em relação à média do grupo, foram abatidas em abatedouro experimental. A etapa de resfriamento foi realizada seguindo um delineamento inteiramente casualizado com arranjo fatorial 3x2, onde os fatores foram: três temperaturas na primeira seção do sistema de refrigeração (4, 10 e 16 º C) e dois graus de dureza da água (água dura e água mole), com seis tratamentos e quatro repetições. A legislação brasileira estabelece que a temperatura da água na primeira seção do resfriador não deve ser superior a 16ºC. Todas as carcaças permaneceram na primeira seção do resfriador durante 30 minutos e, em seguida, foram transferidas para outro tanque com água a 4ºC, permanecendo até atingir 7ºC. As carcaças foram pesadas antes e após o resfriamento por imersão, para avaliação da percentagem de água absorvida. A absorção de água foi influenciada pela temperatura inicial da água no pré-resfriador e pela dureza da água. Quando imersas inicialmente em água a 4ºC, as carcaças absorveram, em média, 2,70%, uma absorção significativamente menor do que a média de 3,83% observada nas carcaças que foram inicialmente imersas em água a 16ºC (p<0,05). As carcaças imersas em água a 10ºC apresentaram média de absorção de água de 3,66%, não diferindo das médias observadas nos outros tratamentos (p>0,05). Em água dura, a média de absorção de água foi de 2,46% e, em água mole, de 4,33% (p<0,05). Em todos os tratamentos, a absorção de água não excedeu o limite estabelecido pela legislação brasileira, que é de, no máximo, 8%. Esta informação é importante para controlar a absorção de água pelas carcaças em processamento de carne de frango, impedindo que os consumidores sejam prejudicados.