Effect of UVA irradiance on photocatalytic and UVA inactivation of Bacillus cereus spores.
J Photochem Photobiol B
; 94(2): 96-100, 2009 Feb 09.
Article
em En
| MEDLINE
| ID: mdl-19041258
ABSTRACT
The current study is the first to delineate the contribution of photocatalysis to inactivation of Bacillus cereus endospores on dry surfaces over a broad range (0-153W/m(2)) of UVA irradiance. Inactivation of spores at low UVA irradiance (30W/m(2)) was primarily due to photocatalysis, whereas at higher UVA irradiance inactivation was primarily due to UV alone. A linear relationship between UVA irradiance and the rate of spore inactivation was observed in the absence of photocatalyst. The rate of photocatalytic inactivation was non-linear with respect to UVA irradiance, exhibiting a maximum at 30W/m(2).
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Bacillus cereus
/
Raios Ultravioleta
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Viabilidade Microbiana
/
Processos Fotoquímicos
Idioma:
En
Revista:
J Photochem Photobiol B
Assunto da revista:
BIOLOGIA
Ano de publicação:
2009
Tipo de documento:
Article
País de afiliação:
Estados Unidos