Table 4. Summary of major resin markers identified in samples R2, R9, Q10, Q11, Q12, L14 and L15. A full list of all individual compounds can be found in Table S1.
| Resin | Resin markers | R2 | R9 | Q10 | Q11 | Q12 | L14 | L15 |
| Frankincense | (keto)boswellic acids | tr | tr | |||||
| 24-nortriterpenoidsa | +++ | +++ | +++ | +++ | +++ | +++ | ||
| Δ2 boswellic acidsb | ++ | ++ | ++ | ++ | ||||
| 4/5-ring PAHs | + | + | + | + | + | + | ||
| tirucallic acids | tr | tr | ||||||
| cembranoidsc | tr | tr | tr | |||||
| Pinaceae tar | dehydroabietic acid, retene, etc. | tr | tr | +++ | tr | tr | ||
| Cupressaceae/Podocarpaceae | ferruginol, totarol | + | + |
a
24-nortriterpenoids include 24-norursa-3,9-diene, 24-norursa-3,9(11),12-triene and corresponding oleananes.
b
Δ2 boswellic acids include Δ2,12 dienes, Δ2,9(11),12 trienes and 11-keto-Δ2,12 dienes.
c
Cembranoids include cembrene, serratol and incensol.