Evaluation of monosodium glutamate, disodium inosinate and guanylate umami taste by an electronic tongue

► We discussed the sensitivity history of sensors to explain the sensor drift. ► Finishing the e-Tongue analyses in a continuous time helps avoid sensor drift. ► The intensity of umami taste of all samples was ranked by e-Tongue. ► This e-Tongue can discriminate different flavor enhancers. ► This e-Tongue is a useful tool to evaluate the umami taste.