Propionic acid fermentation by Propionibacterium freudenreichii CCTCC M207015 with a fibrous-bed bioreactor / 生物工程学报
Chinese Journal of Biotechnology
;
(12): 1075-1079, 2008.
Artículo
en Chino
| WPRIM
| ID: wpr-342790
ABSTRACT
The production of propionic acid by Propionibacterium freudenreichii CCTCC M207015 was investigated in a Fibrous-bed bioreactor (FBB). The FBB was constructed by packing spiral cotton fibrous and immobilized into a bioreactor. By applying this bioreactor to propionic acid fermentation, the propionic acid yield had a significant improvement and reached 20.41 g/L, compared with the cell-free culture of 14.58 g/L (40 g/L of glucose). At the same time, the glucose exhausting time decreased from 120 h to 60 h. Batch fermentations at various glucose concentrations were carried out with FBB. Based on the analysis of the time course of production, fed-batch fermentation was also applied to produce propionic acid with FBB, the maximal propionic acid yield reached 45.91 g/L, and the proportion of propionic acid to total acids was about 72.31%.
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Asunto principal:
Propionatos
/
Propionibacterium
/
Clasificación
/
Reactores Biológicos
/
Fermentación
/
Glucosa
/
Metabolismo
/
Microbiología
Idioma:
Chino
Revista:
Chinese Journal of Biotechnology
Año:
2008
Tipo del documento:
Artículo
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