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Nero,Luís Augusto; Beloti,Vanerli; Barros,Márcia de Aguiar Ferreira; Santana,Elsa Helena Walter de; Pereira,Mykel Steffani; Gusmão,Viviane Vieira; Moraes,Luciane Bilia de. |
The SimPlate TPC CI system is a rapid method to count mesophilic aerobic microorganisms (MAM) in foods, based on the use of resazurine to indicate bacterial growth. Its efficiency in pasteurized milk was evaluated using 142 pasteurized milk samples (38 type A, 43 type B and 61 type C) collected in Londrina, PR. The standard plating method, using Plate Count Agar (PCA) was used for comparison. The plates of both systems were incubated at 35ºC and read after 24h and 48h. The occurrence of false-positive and false-negative wells and the predominant microorganisms in them were also evaluated. The results were compared by simple correlation and mean variance analyses. The correlation (r) and mean variance values were 0.6811 and 0.7583 for the results obtained... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Rapid methods; Milk; SimPlate. |
Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822002000100009 |
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Tavolaro,Paula; Ferrati,Analí Ramazotti; Destro,Maria Teresa; Landgraf,Mariza; Franco,Bernadette Dora Gombossy de Melo. |
Enumeration of aerobic microorganisms in Brazilian pasteurized bovine milk using PetrifilmTM AC and SimplateTM TPC was shown to be influenced by the nature of autochthonous microbiota. This study was conducted to assess if the same occurs in pasteurized goat milk. Pasteurized frozen goat milk (n=62) was purchased in retail stores in São Paulo, SP, Brazil, and submitted to mesophilic aerobic counts using PetrifilmTM AC and SimplateTM TPC, comparing results with those of conventional pour-plates. Correlation indexes above 0.90 were ranked "excellent"; those between 0.80 and 0.89, "good", those from 0.79 to 0.50, "fair", and those below 0.50, "poor". Correlation indexes for PetrifilmTM AC counts were "good", but "poor" using SimplateTM TPC. Comparison of... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Rapid methods; Ready-to-use systems; Goat milk; PetrifilmTM AC; SimplateTM TPC. |
Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822005000300017 |
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