Evaluation of the Microorganism Adsorptive Abilities of Resins Containing Pyridinium Groups Prepared from Foam Polystyrene

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Insoluble resins containing pyridinium groups were prepared from trays and cups of foam polystyrene by chloromethylation followed by reaction with pyridin derivatives. The adsorptive abilities of these resins using various kinds of microorganisms, including gram-positive bacteria, gram-negative bacteria, yeast and methanogens were tested. All the microorganisms tested were adsorbed within 60 minutes and their viability did not decrease. In short, the oxygen consumption rates of gram-positive and gram-negative bacteria and the gas production rates of yeast and methanogens were the same as that of the free microorganisms. This experiment showed that resins containing pyridinium groups are possible support media for the adsorption of microorganisms.
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