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Relative percentages of compounds, determined by GC-MS, from ethanolic extract of Brazilian propolis.
| Component | Retention time (min) | % of total |
|---|---|---|
| Benzoic acid | 9.3 | 0.193 |
| Dihydrocinnamic acid | 14 | 2.180 |
| Dihydrocinnamic acid | 22 | 0.860 |
| Coumaric acid | 26.5 | 0.382 |
| Cafeic acid | 28.6 | 0.297 |
| Prenyl-p-coumaric acid | 32.5 | 6.560 |
| Flavonoids | 35.8 | 1.142 |
| Artepillin C | 37.7 | 16.750 |
| Trihydroxymethoxy flavonon | 40.5 | 0.666 |
| Tetrahydroxy flavonon | 40.8 | 0.228 |
| Triterpene | 47.6 | 0.777 |
| Triterpene | 51 | 0.309 |
