Table 1. Compounds identified in nonpolar fraction of ExEP from P. droryana (ExEP-P) and A. mellifera (ExEP-A) by gas chromatography−mass spectrometry (GC-MS).
Peak | Retention time (min) | Compounds | Molecular mass | ExEP-P mg/g ± SD | ExEP-A mg/g ± SD |
---|---|---|---|---|---|
1 | 16.46 | campesterol | 400 | - | 7.2 ± 0.2 |
2 | 17.02 | stigmasterola | 412 | - | 2.4 ± 0.1 |
3 | 17.72 | β-sitosterola | 414 | 7.2 ± 0.3 | 3.3 ± 0.2 |
4 | 17.93 | β-amyrina | 426 | 14.5 ± 0.5 | 11.3 ± 0.4 |
5 | 18.09 | taraxasterol | 426 | - | 3.6 ± 0.1 |
6 | 18.45 | α-amyrina | 426 | 8.8 ± 0.2 | 3.8 ± 0.1 |
7 | 19.65 | β-amyrin acetatea | 468 | 12.2 ± 0.4 | 8.1 ± 0.2 |
8 | 21.20 | α-amyrin acetatea | 468 | - | 6.4 ± 0.3 |
9 | 24.56 | tocopherola | 430 | 16.8 ± 0.6 | 13.3 ± 0.5 |
This is the Table 1 legend.
aCompound confirmed by comparison with standard
Data are shown as mean ± standard deviation
n = number of independent experiments in triplicate