HIGH CELL-DENSITY REACTOR FOR THE PRODUCTION OF LACTOBACILLUS-PLANTARUM

被引:6
作者
BARRETO, MTO
MELO, EP
MOREIRA, JL
CARRONDO, MJT
机构
[1] UNIV NOVI LISBOA, FCT,ENGN BIOQUIM LAB, P-2825 MONTE DE CAPARICA, PORTUGAL
[2] INST BIOL EXP TECN, CTR TECN QUIM & BIOL, OEIRAS, PORTUGAL
[3] UNIV CATOLICA PORTO, ESCOLA SUPER BIOTECNOL, Porto, PORTUGAL
来源
JOURNAL OF INDUSTRIAL MICROBIOLOGY | 1991年 / 7卷 / 01期
关键词
FLOCCULATION; FLUIDIZED BED REACTOR; LACTOBACILLUS-PLANTARUM; LACTIC STARTER CULTURE;
D O I
10.1007/BF01575605
中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 ; 0836 ; 090102 ; 100705 ;
摘要
The production of a flocculent strain of Lactobacillus plantarum was performed in a high cell density reactor: a fluidized bed reactor (FBR) with a settler and an external cell recirculation. Two variables were assessed, the recirculation rate (R) and the dilution rate (D). The effect of the latter is much more important than the effect of the former in ensuring a quick start up in the flocculation process. The cell volumetric productivities obtained with this system increase directly with dilution rate and recirculation rate. The values of cell volumetric productivities obtained are considerably higher than those obtained in continuous stirred tank reactors (CSTR) and much higher than in batch reactors.
引用
收藏
页码:63 / 69
页数:7
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