A Microbial Biosensor using Pseudomonas Putida Cells Immobilised in an Expanded Bed Reactor for the Online Monitoring of Phenolic Compounds

A cell based biosensor for phenolic substances has been developed. The set up is based on a flow injection system with an expanded bed column with immobilised Pseudomonas cells. The cells were immobilised on glass particles pretreated with poly (ethylene diamine). The system responds to a range of phenolic substances. Storage and operational stabilities are good. The expanded bed concept makes the system reliable also when treating samples with particulate matter.

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