Food and Formalin Detector Using Machine Learning Approach

Abstract

Unethical use of formalin, in the preservation of food items posing threat to public health. Without chemical experts accurately Formalin detection is a time consuming and complicated task. Moreover, the presence of naturally occurring formalin in food items may interfere in detecting artificially added formalin. Purpose of the study was to develop a simple cost-effective and reliable detection technique that can detect contaminated food. Therefore, quantifying artificially added formalin and naturally formed extent it is important to dynamically detect food for the comparison. With this view in mind, we have applied different machine learning algorithms like Naïve Bayes, Logistic regression, Support Vector Machine, K-NN Classifier on fruit’s feature dataset to build a predictive model. We found that the K-NN algorithm works best in terms of accuracy. Finally using food conductance to electricity Rules have been developed and uploaded to the microcontroller unit. Combining with Arduino and the VOC HCHO gas sensor our own android application is able to detect 1-50 ppm of formalin. Several Tests are conducted and polynomial regression has been applied to predict the concentration of formalin in a given sample.