Fermentation of corn fiber hydrolysate to lactic acid by the moderate thermophile Bacillus coagulans.
Biotechnol Lett
; 32(6): 823-8, 2010 Jun.
Article
em En
| MEDLINE
| ID: mdl-20155485
ABSTRACT
A strain of Bacillus coagulans that converted mixed sugars of glucose, xylose, and arabinose to L -lactic acid with 85% yield at 50 degrees C was isolated from composted dairy manure. The strain was tolerant to aldehyde growth inhibitors at 2.5 g furfural/l, 2.5 g 5-hydroxymethylfurfural/l, 2.5 g vanillin/l, and 1.2 g p-hydroxybenzaldehyde/l. In a simultaneous saccharification and fermentation process, the strain converted a dilute-acid hydrolysate of 100 g corn fiber/l to 39 g lactic acid/l in 72 h at 50 degrees C. Because of its inhibitor tolerance and ability to fully utilize pentose sugars, this strain has potential to be developed as a biocatalyst for the conversion of agricultural residues into valuable chemicals.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Bacillus
/
Ácido Láctico
/
Zea mays
Limite:
Animals
Idioma:
En
Revista:
Biotechnol Lett
Ano de publicação:
2010
Tipo de documento:
Article
País de afiliação:
Estados Unidos