Table 3.
Photostimulated luminescence (PSL) counts and PSL ratios of E-beam irradiated medicinal herbs (Unit: photon counts/60 s)
| Sample | Irradiation dose (kGy) | PSL1 | PSL2 | PSL ratio (PSL2/PSL1)a |
|---|---|---|---|---|
| Cnidii Rhizoma | 0 | 658 ± 36b (−)c | 850,067 ± 162,167 (+) | 1294.20 ± 259 (N) |
| 1 | 822,687 ± 16,683 (+) | 1157,451 ± 21,819 (+) | 1.41 ± 0.04 (I) | |
| 5 | 1074,822 ± 31,775 (+) | 1265,096 ± 36,183 (+) | 1.18 ± 0.05 (I) | |
| 10 | 3227,228 ± 87,806 (+) | 5478,056 ± 58,133 (+) | 1.70 ± 0.05 (I) | |
| Alismatis Rhizoma | 0 | 339 ± 30 (−) | 320,250 ± 5012 (+) | 950.74 ± 86 (N) |
| 1 | 56,840 ± 1829 (+) | 279,049 ± 15,476 (+) | 4.91 ± 0.26 (I) | |
| 5 | 74,199 ± 7293 (+) | 327,863 ± 17,088 (+) | 4.45 ± 0.47 (I) | |
| 10 | 209,663 ± 19,835 (+) | 659,032 ± 19,044 (+) | 3.17 ± 0.34 (I) |
aPSL Ratio ≤ 10: irradiated (I), ratio > 10: non-irradiated (N)
bThe values are expressed as mean ± standard deviation (n = 5)
cThreshold value: T1 = 700, T2 = 5000, (−) < T1, T1 < (M) < T2, (+) > T2