Consulta: subjectFacets:"Bacterial contamination"
Registros recuperados: 8
Data/hora: 01/06/2024 06:01:26

Qualidade do leite cru em sistema de ordenha tradicional no estado do Acre.
Provedor de dados: 14
Autores: CARNEIRO JUNIOR, J. M.; CAVALCANTE, F. A.; BRAGA, A. P.; SANTOS, C. F. dos.
Este estudo avaliou a qualidade sanitária, microbiológica e a composição do leite in natura em diferentes épocas do ano no Estado do Acre. Entre 2008 e 2009, 900 amostras foram coletadas em três laticínios, nos municípios de Acrelândia, Porto Acre e Rio Branco. As amostras foram analisadas para determinação da contagem de bactérias totais, contagem de células somáticas, composição do leite e teste do anel para brucelose. A contaminação microbiana foi alta e acima do limite preconizado pela legislação brasileira. Entretanto, os níveis de células somáticas no leite estavam de acordo com o estipulado pela lei. A variação da composição, da qualidade microbiológica e da contagem de células somáticas no leite foi significativa para todas as datas de amostragem,...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Leite in natura; Acrelândia (AC); Porto Acre (AC); Rio Branco (AC); Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental; Brucelosis bovina; Contaminación bacteriana; Control de calidad; Elaboración de leche; Enfermedades animales; Ganado de leche; Higiene de los alimentos; Ordeñar.; Produção leiteira; Controle de qualidade; Higiene de alimento; Análise microbiológica; Inspeção sanitária; Contaminação bacteriana; Doença animal; Brucelose; Ordenha; Gado leiteiro; Brucella abortus.; Dairy cattle; Milk production; Milking; Quality control; Food sanitation; Bacterial contamination; Animal diseases; Bovine brucellosis.
Ano: 2015
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1041211

La sensibilité des larves de pectinidés aux conditions d’élevage : le flux ouvert comme alternative aux mortalités massives
Provedor de dados: 5
Autores: Holbach, Marine.
In many countries, aquaculture of pectinids depends on the success of artificial spat production in hatchery. This production is always unpredictable due to the variability of hatching rate and larval survival. Flow-through larval rearing systems were developed in Norway for the King scallop Pecten maximus and showed promising results. Unfortunately the system needs to be optimized since the larval yields and the densities used are still relatively low. In France, a small-scale (5 L) and high-density (≤ 300 larva mL-1) flow-through larval rearing system was successfully developed for oysters. First trials in such system and in similar conditions with P. maximus failed as we registered slower growth and high mortality rate in only a few days. It is known...
Tipo: Text
Palavras-chave: Pectinidés; Pecten maximus; Écloserie; Élevage larvaire; Flux ouvert; Contamination bactérienne; Prophylaxie; Physiologie larvaire; Indices de stress.; Pectinids; Pecten maximus; Hatchery; Larval rearing; Flow-through; Bacterial contamination; Prophylaxis; Larval physiology; Stress index.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00259/37000/35491.pdf

Inhibición de los contaminantes del tempeh de soya
Provedor de dados: 20
Autores: Mejías, E.; Delgado, R.; Silveira, I.; Lafargue, D.; Cárdenas, E.
Se evaluó el efecto de diferentes especias o condimentos sobre la calidad microbiológica del tempeh y la posible acción inhibidora de sus contaminantes. El tempeh se obtuvo a partir de frijol de soya el cual se sometió a los procesos de cocción, escurrimiento y fermentación. A continuación se procedió a incorporar los condimentos ensayados en dos proporciones por separado a la soya fresca antes de su inoculación con la cepa R. oligosporus, se mezclaron bien y se sometieron al proceso de fermentación, el cual tuvo lugar en bandejas de poliestireno, incubadas a 30 ± 2 ºC por un período de 18 a 20 h hasta obtener un producto con las características típicas del tempeh. De éste se tomaron muestras para determinar contenido de humedad, conteo total de viables y...
Tipo: Journal Contribution
Palavras-chave: Biological contamination; Chemical activity; Tempeh; Bacterial contamination; Enterobacteriaceae; Inhibition; Garlic; Anions; Spices.
Ano: 2008
URL: http://hdl.handle.net/1834/5010

Physical and chemical quality of sanitized commercial eggs experimentally contaminated with Pseudomonas aeruginosa and refrigerated during storage
Provedor de dados: 96
Autores: Mendes,Fernanda Rodrigues; Andrade,Maria Auxiliadora; Café,Marcos Barcellos; Santos,Januária Silva; Lacerda,Maria Juliana Ribeiro; Stringhini,José Henrique; Stringhini,Maria Luiza; Leandro,Nadja Susana Mogyca.
The objective of this study to verify the physicochemical quality of commercial washed and unwashed eggs, experimentally inoculated on the shell with Pseudomonas aeruginosa and stored at 5 and 25 ºC for 30 days. A total of 384 eggs, classified as large, from light Dekalb White laying hens at 30 to 40 weeks of age, were used. The experimental design consisted of two blocks in a 2 × 2 × 2 factorial arrangement (contamination, washing, and refrigeration) with six replicates. The sanitization was performed by mechanical washing (hot water with chlorhexidine 20% and 8% active content). Eggs were contaminated by handling with 1.5 × 10(5) colony-forming units (cfu) of Pseudomonas aeruginosa/mL solution, and stored at 5 and 25 ºC for 30 days. Each ten days,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bacterial contamination; Cooling; Physical characteristics.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012001000011

CALLIPHORIDAE (DIPTERA) IN MANAUS: IV. BACTERIA ISOLATED FROM BLOWFLIES COLLECTED IN STREET MARKETS
Provedor de dados: 36
Autores: PARALUPPI,Norival D; VASCONCELOS,Jurandir C. de; AQUINO,Josenilda S. de; CASTELLÓN,Eloy G; SILVA,Maria do S. B. da.
Staphylococcus aureus, Escherichia coli, Proteussp., Providenciasp., Citrobactersp. and Klebsiellasp. were isolated from calliphorid flies collected in eight street markets in the city of Manaus, Amazonas State, Brazil. The presence of £. coliin the samples suggests that faecal contamination is occurring and that these flies are potential vehicles of enteropathogenic bacteria to exposed foods.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bacterial contamination; Calliphoridae; Manaus; Street markets.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59671996000200093

Age influence on quality of shell and penetration in bacterial laying lightweight eggs
Provedor de dados: 45
Autores: Smaniotto,B.D.; Amarante,A.F.; Altarugio,R.; Silva,I.G.O.; Corrêa,I.M.O.; Pereira,L.Q.; Sartori,M.M.P.; Andreatti Filho,R.L.; Guimarães-Okamoto,P.T.C.; Okamoto,A.S.
ABSTRACT This study evaluated the influence of the bird’s age on the quality of the shell and percentage of bacterial penetration in commercial eggs. White-shelled commercial eggs were used, laid by light laying hens in their first laying cycle at 21, 39, 51, and 62 weeks of age. Shell quality evaluations comprised: egg weight, specific gravity, percentage and thickness of shell, number and size of pores. For evaluations regarding bacterial penetration, strains of several enterobacterias and one salmonella were used, all of which resistant to Nalidixic acid (100µg/ml). The method employed for evaluation of bacterial penetration was filling the eggs with growth medium. The data were subjected to variance analysis with 5% of probability using SAS (Education...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Poultry; Bacterial contamination; Eggs; Enterobacteria.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352017000501301

Autologous transplant: microbial contamination of hematopoietic stem cell products
Provedor de dados: 55
Autores: Almeida,Igor Dullius; Schmalfuss,Tissiana; Röhsig,Liane Marise; Goldani,Luciano Zubaran.
Hematopoietic progenitor cells from peripheral blood (HPCPB) are commonly used for autologous and allogenic transplants in patients with most various onco-hematological diseases, and despite the utilization of sterile techniques during collection and processing of these products, bacterial contamination can occur. This study aimed to investigate the microbial contamination of HPCPB products. Microbial cultures of 837 HPCPB products between the year 2000 and 2009 were retrospectively analyzed to determine the incidence of culture positivity and identify the main organisms that cause contamination. The microbiological studies were performed with an automated system (BacT/Alert® bioMérieux Corporate). Thirty-six (4.3%) of 837 microbial cultures were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Autologous transplant; Hematopoietic stem cell products; Microbial contamination; Quality control; Bacterial contamination.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702012000400006

Biofilm formation by Vibrio parahaemolyticus on different surfaces and its resistance to sodium hypochlorite
Provedor de dados: 65
Autores: Rosa,Janaina Viana da; Conceição,Natália Volpato da; Conceição,Rita de Cássia dos Santos da; Timm,Cláudio Dias.
ABSTRACT:  Vibrio parahaemolyticus is an important pathogen for both fish industry and consumers. It forms biofilm which makes it difficult to eliminate this microorganism using sanitizers. This study aimed to assess biofilm formation on different surfaces and effect of biofilm on resistance to sanitizers. Eight isolates of biofilm-forming V. parahaemolyticus were tested for the ability to form biofilms on a number of surfaces including high density polyethylene, stainless steel, glass, exoskeleton of Farfantepenaeus paulensis (Pink Shrimp), and operculum of Micropogonias furnieri (Whitemouth Croaker). Efficiency of sanitizer sodium hypochlorite against the bacteria was evaluated in the biofilms formed on the surface of the materials used; out the eight...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bacterial contamination; Sanitizers; Food safety; Fish; Shrimp.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018001200451