Characterization of Bacillus megaterium, Bacillus pumilus, and Paenibacillus polymyxa isolated from a Pinot noir wine from Western Washington State.
Food Microbiol
; 67: 11-16, 2017 Oct.
Article
em En
| MEDLINE
| ID: mdl-28648288
ABSTRACT
This report provides the first confirmed evidence of Bacillus-like bacteria present in a wine from Washington State. These bacteria were isolated from a 2013 Pinot noir wine whose aroma was sensorially described as being 'dirty' or 'pond scum.' Based on physiological traits and genetic sequencing, three bacterial isolates were identified as Bacillus megaterium (strain NHO-1), Bacillus pumilus (strain NHO-2), and Paenibacillus polymyxa (strain NHO-3). These bacteria grew in synthetic media of low pH (pH 3.5) while some survived ethanol concentrations up to 15% v/v. However, none tolerated molecular SO2 concentrations ≥0.4 mg/l. Growth of strains NHO-1 and NHO-3 in a Merlot grape juice resulted in increases of titratable and volatile acidities while decreases in titratable acidity were noted for NHO-2.
Palavras-chave
Texto completo:
1
Bases de dados:
MEDLINE
Assunto principal:
Bacillus megaterium
/
Vinho
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Bacillus pumilus
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Paenibacillus polymyxa
País/Região como assunto:
America do norte
Idioma:
En
Revista:
Food Microbiol
Assunto da revista:
CIENCIAS DA NUTRICAO
/
MICROBIOLOGIA
Ano de publicação:
2017
Tipo de documento:
Article
País de afiliação:
Estados Unidos