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. 2017 Sep 12;12(9):e0183983. doi: 10.1371/journal.pone.0183983

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