An Automated Electronic tounge with instantaneous taste detectors using IR sensor and Arduino

Abstract

Food Industry has been progressing rapidly and has been one of the fastest growing industries in the world. From the poverty to the elite class food is one of the major components for the people to live. Keeping this in mind, we have been motivated to take up a challenge to construct a device that can detect the taste of food in a unique and automated way. In the electronic tongue which we have proposed to develop will consist of an IR sensor which will emit Infrared rays to detect the proper taste of the food and will identify the five tastes (bitter, salty, sour, sweet, and umami). It will not only detect the particular taste but it will also show the percentage presence of the particular taste detected (sweetness, saltiness etc.). The whole process will be done during the preparation of the food if it is kept at the production centre. This will be done with the help of a sensor whose architecture has been designed and the sensor has been incorporated in the arduino board where different color LED’s has been provided which will glow depending on the particular taste has which will be detected. The following sensor circuit has been designed in OrcadPspice and its simulation with different colors of LED’s has been taken to segregate the five tastes separately. The colors are namely violet for sour taste, blue for bitter taste, green for salty taste, orange for sweet taste and red for savory (umami) taste. Besides that, applying the concepts of biotechnology each of the chemicals producing the particular sense has been identified and IR rays has been passed through it to generate the signals in a microcontroller. The amplitude of the generated distortion will indicate the percentage presence of the taste in the food. This will not only enhance the quality of food but also help in indicating any rotten particle or microorganism present in food. It will have a large application in dry food manufacturing industries (lays, kurkure, nestle, metro),food courts, restaurants and medicine manufacturing companies.