ATR-FTIR FOR CHARACTERIZING AND DIFFERENTIATING DRIED AND GROUND COFFEE CHERRY PULP OF DIFFERENT VARIETIES (Coffea Arabica L.)

This study aimed to evaluate the performance of infrared spectrum in range 4000?650 cm?1 for characterizing and differentiating dried ground coffee cherry pulp different varieties. The spectral data were subjected first second derivative treatments perform statistical analyses. Three varieties previously characterized color, water activity, moisture, chlorogenic acids, caffeine. results principal component analysis (PCA) showed that Fourier transform (FTIR) spectroscopy is a viable technique among varieties, showing best differentiation with treatment from derivative, which was mainly associated caffeine content acids. investigation FTIR attenuated total reflectance grown Colombia.