An Open Library Development for Pesticide Residue Analytics in Vegetables

Niyom Sutthaluang

Abstract


This paper develops a non-volatile library to visually analyze the residual pesticide in vegetables. From the literature, we found that some chemical compounds that consist of Chlorinated-hydrocarbons (CHCs). The CHCs always use to destroy those pests and insects. By the way, the residual pesticide verification is done by spectrum classification using infrared spectroscopy which shows the line-graph of chemical compounds. However, some spectral wavelengths are not visible that must be reformed into visible wavelength as 380-780 nm, in term of Red-Green-Blue (RGB) model. And the RGB is also converted to Hue-Saturation-Intensity (HSI) to count and visualize the histogram of chemical-color frequencies, especially for developers to use this library to obviously visualize the negative effects to local agriculturists. The residual pesticide library was validated by 2 senior-experts that were averagely 4.0 in the level of goodness. For researching materials, we used the fresh vegetables from some markets like Morning-glories, Chinese-kales, Cabbages and Cow-peas that the buying times from some markets were not more than 5 hours. From the results, some pesticide was obviously residual in these vegetables.

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