NDLI: κ-carrageenan/gelatin gel beads for the co-immobilization of aerobic and anaerobic microbial communities degrading 2,4,6-trichlorophenol under air-limited conditions

Content Provider	Springer Nature Link
Author	Gardin, H. Pauss, A.
Copyright Year	2001
Abstract	Alginate and κ-carrageenan gels were tested as bead materials for the co-immobilization of anaerobic and aerobic microorganisms for the mineralization of 2,4,6-trichlorophenol under air-limited conditions. Chemical, mechanical and thermal culture constraints were pre-defined and the gel resistances were established. Alginate was quickly eliminated because of its chemical instability in the culture media. In anaerobic conditions, the microorganisms transformed the substrates into CH4 and CO2. The κ-carrageenan gel did not enable these gases to diffuse. They remained as bubbles in the core of the beads and made the beads float. Gelatin was added to κ-carrageenan in order to change the carrier properties. No biogas bubbles appeared in the bead core during the cultures in anaerobic conditions and the beads reacted well to the culture conditions in the reactor. The co-immobilization of the anaerobic and aerobic microbial communities was successfully performed with the κ-carrageenan/gelatin gel (2% (w/w) of each polymer). The biological activities, measured by the impedancemetry technique, were preserved in the beads.
Starting Page	517
Ending Page	523
Page Count	7
File Format	PDF
ISSN	01757598
Journal	Applied Microbiology and Biotechnology
Volume Number	56
Issue Number	3-4
e-ISSN	14320614
Language	English
Publisher	Springer-Verlag
Publisher Date	2001-07-05
Publisher Place	Berlin, Heidelberg
Access Restriction	Subscribed
Content Type	Text
Resource Type	Article
Subject	Medicine Applied Microbiology and Biotechnology Biotechnology

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