The experimental arrangement for testing pepper fruit included
a USB2000 (Ocean Optics, Dunedin, FL, USA) mini-spectrometer,
with spectral range 340–1014 nm; grating, 600 lines blazed at
750 nm; optical spectral resolution, 1.2 nm at full width at half
maximum (FWHM); spectral sampling interval, 0.5 nm, 2048 data
points with bidirectional reflection probe (BIF600-UV-VIS).