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Stability of red clover isoflavones during storage and handling, measured using UHPLC-MS/MS
| Stability, % |
|||
|---|---|---|---|
| Analyte (n ≥ 3) | Autosampler 10 °C (24 h) | Freeze-thaw cycle |
|
| 1 | 2 | ||
| Genistein | 104 ± 4 | 97.9 ± 4.3 | 84.2 ± 17.2 |
| Daidzein | 105 ± 8 | 97.5 ± 3.6 | 94.4 ± 6.4 |
| Biochanin A | 104 ± 6 | 98.0 ± 5.4 | 79.3 ± 28.1 |
| Irilone | 93.9 ± 5.7 | 91.9 ± 13.5 | 70.1 ± 3.1 |
| Prunetin | 105 ± 4 | 90.6 ± 9.4 | 77.8 ± 28.4 |
| Formononetin | 103 ± 4 | 101 ± 1 | 78.5 ± 19.3 |
