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|Title:||Modelling bacillus cereusadhesion on stainless steel surface asaffected by temperature, pH and time|
|Author:||Peña, Wilmer Edgard Luera|
Andrade, Nélio José de
Soares, Nilda F. F.
Alvarenga, Verônica Ortiz
Rodrigues Junior, Salatir
Zuniga, Abraham Damian Giraldo
Sant'Ana, Anderson de Souza
|Abstract:||The adhesion of Bacillus cereus to stainless steel was modelled as a function of pH (4.0–8.0), time (2–24 h) and temperature (4.0–36.0 °C) using response surface methodology. Based on the initial inoculum (3 or 6 log cfu mL−1), two equations describing B. cereus adhesion to stainless steel were obtained. The results indicated that B. cereus was able to reach up to 5.5 cfu cm−2 and 6.4 cfu cm−2 when the initial inocula were 3 log cfu mL−1 and 6 log cfu mL−1, respectively. The significance of the factors varied with the model; i.e., inoculum of 3 or 6 log cfu mL−1. Bias and accuracy factors showed that the models are adequate to predict B. cereus adhesion to stainless steel surface under conditions assessed and to assess the adhesion of B. cereus under a range of conditions to which this microorganism can be exposed during either milk processing or cleaning procedures|
|Appears in Collections:||FEA - Artigos e Outros Documentos|
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