Chemical sanitizers to control biofilms formed by two Pseudomonas species on stainless steel surface


Autoria(s): Caixeta,Danila Soares; Scarpa,Thiago Henrique; Brugnera,Danilo Florisvaldo; Freire,Dieyckson Osvani; Alves,Eduardo; Abreu,Luiz Ronaldo De; Piccoli,Roberta Hilsdorf
Data(s)

01/03/2012

Resumo

The biofilm formation of Pseudomonas aeruginosa and Pseudomonas fluorescens on AISI 304 stainless steel in the presence of reconstituted skim milk under different temperatures was conducted, and the potential of three chemical sanitizers in removing the mono-species biofilms formed was compared. Pseudomonas aeruginosa cultivated in skim milk at 28 °C presented better growth rate (10.4 log CFU.mL-1) when compared with 3.7 and 4.2 log CFU.mL-1 for P. aeruginosa and P. fluorescens cultivated at 7 °C, respectively. Pseudomonas aeruginosa formed biofilm when cultivated at 28 °C. However, only the adhesion of P. aeruginosa and P. fluorescens was observed when incubated at 7 °C. The sodium dichloroisocyanurate was the most efficient sanitizer in the reduction of the adhered P. aeruginosa cells at 7 and 28 °C and those on the biofilm, respectively. The hydrogen peroxide was more effective in the reduction of adhered cells of P. fluorescens at 7 °C.

Formato

text/html

Identificador

http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612012000100021

Idioma(s)

en

Publicador

Sociedade Brasileira de Ciência e Tecnologia de Alimentos

Fonte

Food Science and Technology (Campinas) v.32 n.1 2012

Palavras-Chave #biofilm #P. aeruginosa #P. fluorescens #chemical sanitizers
Tipo

journal article