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. 2020 Jul 6;11(2):232–240. doi: 10.1016/j.jpha.2020.06.008

Table 3.

Degradation products of taxifolin after exposition to different stress conditions, monitored by UPLC-ESI-MS.

Peak
No.		 Retention time
(min)		 MS [M-H]- in negative ion mode (m/z)
 Elemental composition
Taxifolin Stress condition
1mM NaOH 1M HCl 30% H2O2 Visible light (2.4 million lx·h) Visible light negative control Humid heat 40°C, 75% relative humidity Dry heat 40 °C
1 0.46 - - 197.79 - - - - - C7H3O7
2 0.49 - - - 162.89 - - - - C6H10O5
3 6.47 303.05 303.05 303.05 303.06 303.05 303.05 303.06 303.05 C15H12O7
4 6.62 303.05 303.05 - - 303.05 303.05 - - C15H12O7
5 7.10 - 723.50 723.501 723.51 - - 723.52 - CHO
6 7.54 301.04 - - - 301.04 301.04 - 301.04 C15H10O7
7 8.42 - - - - - - - 265.14 CHO
8 8.82 - - - - 221.12 221.12 - - CHO
9 10.77 265.15 265.15 265.15 265.151 265.15 265.15 265.15 265.15 CHO
10 12.46 - - - - - - - 325.18
11 12.57 - - - - - - 439.25 - CHO
12 12.60 - - - - 421.23 - - - CHO
13 13.34 - - - - - - - 339.20 CHO
14 14.47 - - - - - - 439.25 -
15 14.77 281.25 281.25 281.24 281.25 281.25 281.25 - 281.25 CHO