Use este identificador para citar ou linkar para este item: https://locus.ufv.br//handle/123456789/14629
Tipo: Artigo
Título: Assessment of hydrophobicity and roughness of stainless steel adhered by an isolate of Bacillus cereus from a dairy plant
Autor(es): Bernardes, Patrícia Campos
Andrade, Nélio José de
Ferreira, Sukarno Olavo
Sá, João Paulo Natalino de
Araújo, Emiliane Andrade
Delatorre, Deyse Maria Zanom
Luiz, Lívia Maria Pinheiro
Abstract: The interaction between the surface of stainless steel and Bacillus cereus was studied in terms of the characteristics of interfacial interaction determined from the measurement of the contact angle of the surface of B. cereus and stainless steel in the presence or absence of B. cereus adherence. The microtopographies and the roughness of the surface of stainless steel and stainless steel adhered by B. cereus were evaluated with the help of atomic force microscopy and perfilometry. The strain of B. cereus studied was considered hydrophilic, whereas the stainless steel was considered hydrophobic. The adhesion was not thermodynamically favorable (ΔGadhesion > 0) between the stainless steel and the strain of B. cereus studied. Thus, the interaction between them was not favored by the thermodynamic aspect of adhesion. There was no difference (p > 0.05) in the roughness of the surfaces of stainless steel adhered by B. cereus when analyzed by atomic force microscope and perfilometry.
Palavras-chave: Hydrophobicity
Roughness
Bacillus cereus
Dairy plant
Adhesion
Editor: Brazilian Journal of Microbiology
Tipo de Acesso: Open Access
URI: http://dx.doi.org/10.1590/S1517-83822010000400017
http://www.locus.ufv.br/handle/123456789/14629
Data do documento: 26-Abr-2010
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