Portable Onsite Soybean Contents Analyzer

Soybean is a significant agricultural product. The contents of distinct components in a soybean grain determine its trading price; therefore, a non-destructive and rapid detection technique for the significant components of soybean is essential. We have developed a Portable Onsite Soybean Contents Analyzer (POSCA) based on a micro spectroscopy module (NanoEVM). It is a portable analyzer that determined the fat, protein, and water content of soya beans in situ, quickly and non-destructively using a few samples. We have collected a total of 74 soybean samples, 80% of which are used as calibration models and the remaining 20% as prediction models. The results of the established models indicated that the values for standard error of calibration (SEC) and standard error of validation (SEP) were relatively close. The standard error did not exceed 3%, and these results meet the general requirements to use the proposed solution.