简介:Astrainofyeast,whichcanendurehighosmoticpressure,isemployedforthesensitivematerialofthemicrobialBODsensor.Twoimmobilizationmethodsareused,I.e.CalciumalginategelbeadsandPVAgelbeads.TheresultsshowthatthePVAgelbeadsisbetter.TheinfluencesofosmosisandheavymetalionsontheyeastentrappedinthePVAgelbeadsarealsostudiedintheexperiment.