Development of Mobile Application Monitoring for Thai Food and Beverage Based on Portable Near-Infrared Spectroscopy Technology

The paper aims to propose “Portable NIRS Technology for Thai Food Industry” with applications using non-destructive based technology called Near-Infrared Spectroscopy (NIRS) for determining whether the sampled food is expired or not. This proposed NIRS technology will be applicable especially for the agricultural and food industries. The basic process of the proposed system can be divided into the following two parts, i.e., 1) a sensor device that detects samples and 2) a mobile application developed for connecting to the NIRS device. The binary k-nearest neighbors algorithm (k-NN) is proposed to classify the five common Thai local samples, i.e., soy milk (SM), fresh milk (FM), salad dressing (SD), corn milk (CM), and banana in coconut milk (BM). The output results are classified into two classes, i.e., Unexpired (Un) and expired (Ex), based on the wavelength measuring from the proposed NIRS system.