Table 3 The content of biological active compounds (mg/g dry weight) in Crocus sativus stigmas water and hydroethanolic (70%, v/v) crude extracts
Compounds | RT, min | λ, nm | UV, λ max, nm | Stigmas extract | |
|---|---|---|---|---|---|
Water | Hydroethanolic | ||||
Specific compounds | |||||
 Crocin | 28.37 | 440 | 261, 440, 466 | 38.27 ± 0.03 | 163.02 ± 1.16 |
 Picrocrocin | 25.88 | 250 | 249, 327 | 62.25 ± 0.10 | 197.19 ± 5.60 |
 Safranal | 55.85 | 310 | 231, 312 | 10.81 ± 0.03 | 146.66 ± 3.07 |
Flavonoids | |||||
 Rutin | 22.48 | 310 | 256, 352 | 3.07 ± 0.02 | 14.81 ± 0.41 |
 Apigenin | 47.90 | 250 | 237, 267, 337 | 0.96 ± 0.01 | 8.39 ± 0.15 |
Hydroxycinnamic acids | |||||
 Caffeic acid | 14.18 | 310 | 217, 236, 342 | 0.11 ± 0.00 | 0.38 ± 0.01 |
 Ferulic acid | 21.64 | 310 | 218, 236, 323 | 0.13 ± 0.03 | 0.26 ± 0.00 |