Influence of pH control on the production of curdlan by Alcaligenes faecalis strain / 生物工程学报
Chinese Journal of Biotechnology
; (12): 634-637, 2002.
Article
em Zh
| WPRIM
| ID: wpr-256148
Biblioteca responsável:
WPRO
ABSTRACT
A two-stage pH control method was employed in batch fermentation of curdlan by Alcaligenes faecalis WX-C12 where cell-growth stage was constantly controlled at pH 7.0 and stationary stage was controlled at a constant pH as well. The influence of pH control on the curdlan production was investigated. The optimal pH control of batch process for curdlan production was obtained when cell-growth stage was controlled at pH 7.0 and stationary stage was constantly controlled at pH 5.6. Production and productivity of curdlan, QP and YP/S reached 28.19 g/L, 291 mg/(L.h), 132.27 mg/(L.h.g) and 0.659, an improvement of 20.4%, 38.1%, 38.1% and 29.5% compared to a pH uncontrolled operation respectively.
Texto completo:
1
Índice:
WPRIM
Assunto principal:
Beta-Glucanas
/
Alcaligenes
/
Fermentação
/
Glucanos
/
Concentração de Íons de Hidrogênio
/
Metabolismo
Idioma:
Zh
Revista:
Chinese Journal of Biotechnology
Ano de publicação:
2002
Tipo de documento:
Article