Enrichment, isolation and characterization of fungi tolerant to 1-ethyl-3-methylimidazolium acetate.
J Appl Microbiol
; 110(4): 1023-31, 2011 Apr.
Article
em En
| MEDLINE
| ID: mdl-21276149
ABSTRACT
AIMS:
This work aimed to characterize microbial tolerance to 1-ethyl-3-methylimidazolium acetate ([C2mim][OAc]), an ionic liquid that has emerged as a novel biomass pretreatment for lignocellulosic biomass. METHODS ANDRESULTS:
Enrichment experiments performed using inocula treated with [C2mim][OAc] under solid and liquid cultivation yielded fungal populations dominated by Aspergilli. Ionic liquid-tolerant Aspergillus isolates from these enrichments were capable of growing in a radial plate growth assay in the presence of 10% [C2mim][OAc]. When a [C2mim][OAc]-tolerant Aspergillus fumigatus strain was grown in the presence of switchgrass, endoglucanases and xylanases were secreted that retained residual enzymatic activity in the presence of 20% [C2mim][OAc].CONCLUSIONS:
The results of the study suggest that tolerance to ionic liquids is a general property of the Aspergilli. SIGNIFICANCE AND IMPACT OF THE STUDY Tolerance to an industrially important ionic liquid was discovered in a fungal genera that is widely used in biotechnology, including biomass deconstruction.Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Aspergillus
/
Líquidos Iônicos
/
Imidazóis
Idioma:
En
Revista:
J Appl Microbiol
Assunto da revista:
MICROBIOLOGIA
Ano de publicação:
2011
Tipo de documento:
Article
País de afiliação:
Estados Unidos