A proposed biparticle fluidized-bed for lactic acid fermentation and simultaneous adsorption

A bioreactor configuration is proposed for simultaneous fermentation and separation of the desired product. The bioreactor consists of a columnar fluidized bed of immobilized microorganisms. Denser adsorbent particles are added to this column. These adsorbent particles fall through the bed, absorb t...

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Bibliographic Details
Published inBiotechnology and bioengineering Vol. 39; no. 3; p. 365
Main Authors Davison, B.H. (Oak Ridge National Laboratory, Oak Ridge, TN), Scott, C.D
Format Journal Article
LanguageEnglish
Published United States 05.02.1992
Subjects
ACIDE LACTIQUE
ACIDO LACTICO
ADSORCION
ADSORPTION
BIOREACTEUR
BIORREACTORES
CARBON ACTIVADO
CHARBON ACTIF
FERMENTACION
FERMENTATION
IMMOBILISATION
INMOVILIZACION
LACTOBACILLUS
TRAITEMENT EN LIT FLUIDISE
TRATAMIENTO EN LECHO FLUIDO
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Summary:A bioreactor configuration is proposed for simultaneous fermentation and separation of the desired product. The bioreactor consists of a columnar fluidized bed of immobilized microorganisms. Denser adsorbent particles are added to this column. These adsorbent particles fall through the bed, absorb the product, and are removed from the base of the columnar reactor. The system hydrodynamics and the separability of the two types of particles were confirmed for low-density gel beads. The addition of the adsorbent, activated carbon, to a fermentation of Lactobacillus delbreuckii absorbed lactic acid. The addition of adsorbent enhanced the fermentation and controlled the pH
Bibliography:Q02
Q05
9406455
ISSN:0006-3592
1097-0290
DOI:10.1002/bit.260390317