Summary
The cells of Lactobacillus casei were adsorbed to Poraver, foam glass particles pretreated with polyethylenimine (PEI). Exposure of cells for a relatively short period to Poraver beads coated with a high concentration of PEI resulted in maximal adsorption with good retention of metabolic activity. The immobilized cells were tested in packed-bed and stirred-tank reactors for lactic acid production. Stirred-tank operations were more effective in terms of productivity but the support was sensitive to attrition. The beads exhibited good mechanical stability to withstand pressure in the packed-bed reactor.
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Correspondence to: Bo Mattiasson
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Guoqiang, D., Kaul, R. & Mattiasson, B. Immobilization of Lactobacillus casei cells to ceramic material pretreated with polyethylenimine. Appl Microbiol Biotechnol 37, 305–310 (1992). https://doi.org/10.1007/BF00210983
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DOI: https://doi.org/10.1007/BF00210983