CPL - Chalmers Publication Library
| Utbildning | Forskning | Styrkeområden | Om Chalmers | In English In English Ej inloggad.

Effects of encapsulation of microorganisms on product formation during microbial fermentations

Johan Westman (Institutionen för kemi- och bioteknik, Industriell Bioteknik ) ; Päivi Ylitervo (Institutionen för kemi- och bioteknik, Industriell Bioteknik ) ; Carl Johan Franzén (Institutionen för kemi- och bioteknik, Industriell Bioteknik ) ; Mohammad J. Taherzadeh
Applied Microbiology and Biotechnology (0175-7598). Vol. 96 (2012), 6, p. 1441-1454.
[Artikel, refereegranskad vetenskaplig]

This paper reviews the latest developments in microbial products by encapsulated microorganisms in a liquid core surrounded by natural or synthetic membranes. Cells can be encapsulated in one or several steps using liquid droplet formation, pregel dissolving, coacervation, and interfacial polymerization. The use of encapsulated yeast and bacteria for fermentative production of ethanol, lactic acid, biogas, l-phenylacetylcarbinol, 1,3-propanediol, and riboflavin has been investigated. Encapsulated cells have furthermore been used for the biocatalytic conversion of chemicals. Fermentation, using encapsulated cells, offers various advantages compared to traditional cultivations, e.g., higher cell density, faster fermentation, improved tolerance of the cells to toxic media and high temperatures, and selective exclusion of toxic hydrophobic substances. However, mass transfer through the capsule membrane as well as the robustness of the capsules still challenge the utilization of encapsulated cells. The history and the current state of applying microbial encapsulation for production processes, along with the benefits and drawbacks concerning productivity and general physiology of the encapsulated cells, are discussed.

Nyckelord: Encapsulation, Microbial cell, Whole-cell biocatalyst, Ethanol, Lactic acid, liquid-core capsules, cell microencapsulation technology, saccharomyces-cerevisiae cells, alginate-chitosan, semipermeable, microcapsules, continuous cultivation, lactococcus-lactis, escherichia-coli, cross-linking, yeast-cells

Den här publikationen ingår i följande styrkeområden:

Läs mer om Chalmers styrkeområden  

Denna post skapades 2012-12-20. Senast ändrad 2014-09-02.
CPL Pubid: 168482


Läs direkt!

Länk till annan sajt (kan kräva inloggning)

Institutioner (Chalmers)

Institutionen för kemi- och bioteknik, Industriell Bioteknik (2008-2014)


Hållbar utveckling
Industriell bioteknik

Chalmers infrastruktur