Tristimulus mathematical treatment application for monitoring fungi infestation evolution in melon using the electrical response of carbon nanostructure-polymer composite based sensors

The sensors response showed that the presence of fungi in melons can be electronically identified during the ripening process. We applied a method analogous to that used in colorimetry, the construction of the tristimulus space, to calculate the coordinates that can be univocally represented in a bidimensional graph, characterizing the sample. We show that the coordinate sequence constitutes a path evolving from the uninfected fruit to the fungi-only coordinates in a 20 days sequence of measurements after fungi inoculation.