Effects of high-pressure homogenization on the survival of Alicyclobacillus acidoterrestris in a laboratory medium.
Lett Appl Microbiol
; 45(4): 382-6, 2007 Oct.
Article
en En
| MEDLINE
| ID: mdl-17897380
AIMS: This study was aimed to investigate the effectiveness of high-pressure homogenization (HPH) against Alicyclobacillus acidoterrestris. METHODS AND RESULTS: The susceptibility of three different strains of A. acidoterrestris (DSMZ 2498, Gamma4 and c8) to HPH (500-1700 bar) was studied. The experiments were performed in a laboratory medium (malt extract broth) on cells and spores. HPH caused a significant reduction of the initial cell number (1-2 log CFU ml(-1) at the highest pressures) in Gamma4 and DSMZ 2498 strains, whereas the effect on the spores was less significant. CONCLUSIONS: This study showed that the susceptibility of A. acidoterrestris to HPH was strain-dependent: DSMZ 2498 seemed the most susceptible strain, whereas c8 was the most resistant one. SIGNIFICANCE AND IMPACT OF THE STUDY: The results of our study will provide useful information on the sensitivity of an emerging spoilage micro-organism, such as A. acidoterrrestris, to HPH.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Bacilos Grampositivos Formadores de Endosporas
/
Viabilidad Microbiana
/
Conservación de Alimentos
/
Presión Hidrostática
Idioma:
En
Revista:
Lett Appl Microbiol
Asunto de la revista:
MICROBIOLOGIA
Año:
2007
Tipo del documento:
Article
País de afiliación:
Italia
Pais de publicación:
Reino Unido