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| Costa,Patrícia Dolabela; Andrade,Nélio José; Brandão,Sebastião César Cardoso; Passos,Frederico José Vieira; Soares,Nilda de Fátima Ferreira. |
| ATP-bioluminescence assay was used to evaluate the cleaning and sanitizing procedures of stainless steel milk contact surfaces. Surfaces of a raw milk transportation tank, a raw milk cooling storage tank, an equalization pasteurizing tank, a pasteurized milk storage tank and a pasteurized milk packaging tank, as well as a milk centrifuge were evaluated. The Relative Light Unit (RLU) using a commercial luminometer and mesophilic aerobic counts (CFU.cm-2) on surfaces were determined. There were no significant differences (p>0.05) in RLU on the assessed surfaces before and after the cleaning and sanitizing procedures. Also, there were no significant differences (p>0.05) in CFU.cm-2 on the surfaces before the cleaning and sanitizing procedures, whereas... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Dairy plant; Cleaning and sanitizing procedures; Food processing surfaces; ATP hygiene-monitoring system; ATP-bioluminescence. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822006000300026 |
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| Salustiano,Valéria Costa; Andrade,Nélio José; Brandão,Sebastião César Cardoso; Azeredo,Raquel Monteiro Cordeiro; Lima,Sandra Aparecida Kitakawa. |
| The microbiological air quality at processing areas in a dairy plant was evaluated by using a one-stage air sampler, based on Andersen principles (impaction technique) and by culture settling plate technique, also known as sedimentation technique. Among these areas, milk reception, packaging, and pasteurization rooms were included. Rooms where cheese, yogurt, butter and "doce de leite"(Latin American typical treat made of concentrated milk and sugar) are made were also evaluated. For all processing areas, the numbers of mesophilic aerobic bacteria and yeast and molds recovered by air sampler were higher than 90 CFU·m-3 - the maximum value recommended by American Public Health Association (APHA). In four of the six processing areas, the microbial numbers... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Dairy plant; Air processing areas; Microbiological quality; Air sampler. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822003000300015 |
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