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
Table 1
Chemical components identified from nonirradiated and irradiated saffron.
| | Peak number | RT | Experimental (m/z) | Calculated (m/z) | Difference (ppm) | MS/MS fragments | Formula | Proposed compounds | 0 kGy | 10 kGy |
| | 1 | 0.74 | 194.079 | 194.079 | 1.26 | 112.9858, 176.9345 | C7H14O6 | Beta-methyl-D-glucoside | √ | √ | | 2 | 0.756 | 120.0423 | 120.0423 | 2.43 | 616.6543 | C4H8O4 | Methyl allyl tetrasulfide | √ | √ | | 3 | 0.756 | 180.0634 | 180.0634 | 1.21 | 124.0433, 400.5046, 977.3344 | C6H12O6 | Cocositol | √ | √ | | 4 | 0.831 | 342.1162 | 342.1162 | 1.1 | 245.0399, 1064.3185 | C12H22O11 | Cellobiose | √ | √ | | 5 | 0.856 | 150.0528 | 150.0528 | 1.48 | 426.1106, 740.8576 | C5H10O5 | Apiose | √ | √ | | 6 | 0.856 | 278.1002 | 278.1002 | 2.32 | 101.0246, 197.3849 | C11H18O8 | Tuliposide A | √ | √ | | 7 | 1.038 | 150.0528 | 150.0528 | 1.2 | 968.8609, 1055.9846 | C5H10O5 | Apiose | √ | √ | | 8 | 1.038 | 196.0583 | 196.0583 | 0.93 | 368.0468 | C6H12O7 | Gluconic acid | √ | √ | | 9 | 1.08 | 76.016 | 76.016 | 0.99 | 112.9856, 395.2799, 1095.0428 | C2H4O3 | Glycolic acid | √ | √ | | 10 | 1.08 | 90.0317 | 90.0317 | 0.82 | 125.3414 | C3H6O3 | Dihydroxyacetone | √ | √ | | 11 | 1.329 | 46.0055 | 46.0055 | 1.6 | 1635.3649 | CH2O2 | Formic acid | √ | √ | | 12 | 1.329 | 106.0266 | 106.0266 | 1.3 | 567.0849, 1227.0691 | C3H6O4 | D-glyceric acid | √ | √ | | 13 | 1.404 | 210.074 | 210.074 | 1.21 | 721.5432 | C7H14O7 | Coriose | √ | √ |
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