Dose-Dependent Differentiation of Gamma-Irradiated Hazelnut Samples by Mid-Infrared Spectroscopy Coupled with Chemometrics

Figure 2

Hierarchical clustering of control and irradiated hazelnut groups using unit vector normalized spectra in the spectral range of (a) 4000–1000 cm⁻¹, (b) 3050–2800 cm⁻¹, and (c) 1800–1000 cm⁻¹.

(a)

(b)

(c)