Table 1.
The contents of major polyphenols in L. bicolor honey were detected using UHPLC-QQQ-MS/MS approach.
| No. | Compound | Formula | RT/min | Regression Equation | R2 | mg/kg (Mean ± SD) |
|---|---|---|---|---|---|---|
| 1 | Chlorogenic acid | C16H18O9 | 1.4 | y = 21,979x + 3130 | 0.9979 | 16.28 ± 5.68 |
| 2 | Ferulic acid | C10H10O4 | 3.3 | y = 6875x − 4 | 0.9999 | 1.42 ± 0.64 |
| 3 | Vitexin | C21H20O10 | 4.3 | y = 21,424x − 121 | 0.9998 | 9.59 ± 2.79 |
| 4 | Rutin | C27H30O16 | 3.6 | y = 17,807x − 508 | 0.9963 | 7.22 ± 2.90 |
| 5 | Gallic acid | C7H6O5 | 1.4 | y = 2708x − 20 | 0.9924 | 5.04 ± 1.93 |
| 6 | Myricitrin | C15H10O8 | 3.4 | y = 41x − 2 | 0.9949 | 5.43 ± 3.52 |
| 7 | Morin | C15H10O7 | 3.6 | y = 440,451x + 1211 | 0.9963 | 4.39 ± 3.08 |
| 8 | Kaempferol-3-O-sophoroside | C33H40O21 | 4.0 | y = 3201x − 5 | 0.9996 | 7.21 ± 1.94 |
| 9 | Glycitein | C16H12O5 | 4.8 | y = 6452x + 272 | 0.9968 | 17.27 ± 3.37 |
| 10 | Wogonin | C16H12O5 | 4.8 | y = 50,170x + 2956 | 0.9940 | 7.07 ± 4.72 |
| 11 | Butin | C15H12O5 | 4.0 | y = 65,503x − 253 | 0.9972 | 2.77 ± 1.09 |
| 12 | Liquiritigenin | C15H12O4 | 4.8 | y = 126,010x − 67 | 0.9999 | 3.60 ± 1.33 |