Title of article :
New potentiometric microbial biosensor for ethanol determination in alcoholic beverages Original Research Article
Author/Authors :
Lucian Rotariu، نويسنده , , Camelia Bala، نويسنده , , Vasile Magearu، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2004
Abstract :
A potentiometric oxygen electrode was successfully used to produce a microbial biosensors with an extended response range, based on immobilised yeast cells (Saccharomyces ellipsoideus). The response for ethanol takes ca. 7 min for the steady-state method and 2 min for kinetic measurements. A linear calibration achieved over more than two decades of ethanol concentration. Selective determination of ethanol in the presence of non-volatile compounds was achieved using a second PTFE membrane to cover the biocatalytic layer.
Keywords :
Ethanol , Microbial biosensor , Potentiometry , Food analysis
Journal title :
Analytica Chimica Acta
Journal title :
Analytica Chimica Acta