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| Ramos,Roberta Juliano; Pereira,Murilo Anderson; Miotto,Letícia Adélia; Faria,Renata D'Aquino; Silveira Junior,Nelson; Vieira,Cleide Rosana Werneck. |
| The aim of this study was to assess the contamination of oysters (Crassostrea gigas), harvested in six different regions of the South Bay of Santa Catarina Island, with Coliforms at 45 ºC, Escherichia coli, Vibrio spp., positive coagulase staphylococci, and Salmonella sp. over a period of one year. One hundred eighty oyster samples were collected directly from their culture sites and analyzed. Each sample consisted of a pool of 12 oysters. All of the samples analyzed showed absence of Salmonella, 18 (10%) samples showed presence of Escherichia coli, 15 (8.3%) samples were positive for V. alginolyticus, and Vibriocholerae was detected in 4 samples (2.2%). The counts of positive-coagulase staphylococci varied from <10 to 1.9 x 102 CFU.g-1, whereas the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Microbiological quality; Bivalve mollusks; Filter-feeders; Escherichia coli; Vibrio parahaemolyticus; Vibrio vulnificus. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612012000300009 |
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| Cirolini,Andréia; Baseggio,Andressa Mara; Miotto,Marília; Ramos,Roberta Juliano; Cattani,Cristhiane Stecanella de Oliveira; Vieira,Cleide Rosana Werneck. |
| New microbiological methods have been developed and commercialized, but their performance must be guaranteed. The aim of the present study was to evaluate the PetrifilmTM and TEMPO® systems compared to the conventional method for counting microorganisms in pasteurized milk. A total of 141 samples of pasteurized milk were analyzed by counting mesophilic aerobic, Coliforms at 35 ºC, Coliforms at 45 ºC, and Escherichia coli microorganisms. High correlation was found between the methods for counting Coliforms at 35 ºC, but low correlation was found for counting mesophilic aerobic, Coliforms at 45 ºC, and Escherichia coli. No significant statistical difference was found among the three methods for counting Coliforms at 35 ºC; however, the mean counts of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Alternative methods; Milk; Microbial contamination; Conventional methods. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612013000400026 |
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| Cattani,Cristhiane Stecanella de Oliveira; Fuchs,Pedro Ivo Pinheiro; Cirolini,Andréia; Vieira,Cleide Rosana Werneck. |
| Micro-organismos estão presentes em toda a cadeia de processamento da carne, desde a matéria-prima até o produto final e compete aos programas de qualidade industrial verificar se existe contaminação na matéria-prima e nos produtos finais para, dessa forma, garantir um produto seguro ao consumidor. Para tanto, faz-se necessário utilizar metodologias alternativas à convencional na rotina diagnóstica dos laboratórios para obtenção de resultados confiáveis e em menor tempo possível. Com objetivo de verificar e comparar a correlação e o tempo de processamento, da metodologia convencional com as metodologias alternativas do sistema PetrifilmTM (3M) e sistema TEMPO® (bioMeriéux), foi realizada contagem de micro-organismos mesófilos, de enterobactérias e de... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Métodos; Carcaças; Suínos; Micro-organismos. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782013000600014 |
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| Silveira,Sheila Mello da; Cunha Júnior,Anildo; Scheuermann,Gerson Neudí; Secchi,Fábio Luiz; Vieira,Cleide Rosana Werneck. |
| The chemical composition of 10 selected plant essential oils obtained by steam distillation was determined by GC and GC/MS. The antimicrobial activity of the essential oils was screened against 12 important food-related bacterial strains by agar disc-diffusion assay. MIC and MBC were determined for the essential oils that presented the highest activity in the agar disc-diffusion test. The most active essential oils against the tested bacteria were, in descending order, lemongrass (Cymbopogon flexuosus), basil (Ocimum basilicum), oregano (Origanum vulgare), cinnamon leaf (Cinnamomum zeylanicum), and laurel (Laurus nobilis). Except for S. Typhimurium, the tested bateria were inhibited at MIC values lower or equal to 0.62mg mL-1 by lemongrass (Cymbopogon... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Essential oils; Chemical composition; Phytotherapic agents; Antibacterial activity; Food pathogens. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782012000700026 |
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