Research Article

Analysis of the Effect of 60Co-γ Irradiation Sterilization Technology on the Chemical Composition of Saffron Using UPLC and UPLC/Q-TOF-MS

Figure 4

Principal component analysis (PCA) of nonirradiated and irradiated saffron. Note. n: nonirradiation group; n -1 10 kGy irradiation for 5 h; n -2 10 kGy irradiation for 10 h (n = 1–10, number of the 10 batches of samples).