Portable Non-Invasive Rapid-Response Optical Device for the Detection of Pesticide Residues in Quinoa Using Reflectance Spectrometry
DOI:
https://doi.org/10.53591/easi.V3i2.3280Keywords:
Food safety, Pesticide residues, Reflectance spectroscopyAbstract
Following the pandemic, healthy food has been increasingly recognized as a fundamental human right. However, regardless of its nutritional value, food becomes a health risk when contaminated. In this context, quinoa, produced in the Department of Oruro and marketed nationally and internationally, faces concerns regarding pesticide use to maximize production, as residues may adversely affect human health and contribute to cancer development. Given the lack of rapid and accessible detection methods, a portable handheld device was designed and developed to provide rapid, non-invasive detection at a relatively low manufacturing cost compared to specialized equipment and conventional laboratory methods. The experimental study analyzed 25 organic quinoa samples and 25 conventional samples. Using Principal Component Analysis (PCA) and threshold analysis, a weighted sum value of 1170 was established as the divergence threshold. The results validated the feasibility of the reflectance spectrometry-based device, promoting technological innovation in food safety.
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