High-Sensitive Determination of Sulfite in Some Foods and Automatic Determination of Sulfite in Liquid Foods by a Microbial Sensor Method

Abstract

The sensitivity of a microbial sensor for sulfite determination in food was enhanced to 0.1μ g/ml or g by using thin gas-permeable membrane and increasing sample volume. The improved method was applied to the determination of total sulfite in some solid and liquid foods. Automatic determination of sulfite in liquid foods succeeded by the use of an automatic sampler.