Research Article
Antibiofilm Activity of Extract and a Compound Isolated from Triumfetta welwitschii against Pseudomonas aeruginosa
Table 1
The proposed identification of compounds corresponding to the chromatographic peaks in Figure
1 by UPLC-MS/MS.
| Peak | Rt (min) | [M-H]- | Proposed formula | Proposed compounds |
| 1 | 1.73 | 191.0546 | C7H11O6 | Quinic acid | 2 | 1.73 | 191.0549 | C7H11O6 | Quinic acid | 3 | 12.79 | 191.06 | C7H11O6 | Quinic acid | 4 | 12.80 | 353.0874 | C16H17O9 | Chlorogenic acid | 5 | 12.88 | 191.05 | C7H11O6 | Quinic acid | 6 | 14.46 | 289.07 | C7H11O6 | Catechin | 7 | 16.27 | 563.1394 | C20H30O7 | Apigenin 6-C-arabinoside 8-glucoside | 8 | 16.26 | 563.1393 | C20H30O2S2 | Apigenin 6-C-arabinoside 8-glucoside | 9 | 17.92 | 431.0961 | C21H9O10 | Vitexin | 10 | 18.34 | 431.0978 | C21H9O10 | Vitexin | 11 | 18.80 | 461.07 | C22H22O11 | Methylkaempferol-hexose | 12 | 18.81 | 285.0397 | C15H10O6 | Luteolin | 13 | 20.85 | 269.04 | C15H9O5 | Apigenin | 14 | 20.87 | 445.08 | C21H18O11 | Apigenin-7-O-glycuronyl | 15 | 21.05 | 161.0239 | C9H6O3 | Umbelliferone | 16 | 20.87 | 445.08 | C21H18O11 | Apigenin-7-O-glycuronyl | 17 | 21.08 | 359.08 | | Luteolin derivative | 18 | 18.80 | 461.07 | C22H22O11 | Methylkaempferol-hexose | 19 | 21.07 | 359.08 | | Luteolin derivative | 20 | 21.15 | 161.02 | C9H6O3 | Umbelliferone | 21 | 21.73 | 503.08 | C23H19O13 | 6,8-Di-C-β-glucupyranosylapigenin (vicenin-2) | 22 | 21.79 | 285.04 | C15H10O6 | Luteolin | 23 | 23.50 | 343.08 | | 5,4′-Dihydroxy-7,3′-dimethoxy8-methyl homoisoflavanone | 24 | 23.96 | 269.0441 | C15H9O5 | Apigenin | 25 | 23.96 | 503.0821 | C23H19O13 | 6,8-Di-C-β-glucupyranosylapigenin (vicenin-2) | 26 | 23.99 | 503.09 | C23H19O13 | 6,8-Di-C-β-glucupyranosylapigenin (vicenin-2) | 27 | 25.38 | 233.15 | | Malonyl- monocinnamoylquinic acid | 28 | 26.38 | 112.99 | Quinic acid derivative |
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