Table 1.

Chemical composition of essential oil of propolis (EOP) from the Cerrado biome in Midwest Brazil.

Compoundsa, b	RIc	RI lit.d	Composition (%)
α-Pinene	939	933	0.15
α-Cubebene	1351	1351	0.62
α-Ylangene	1372	1375	0.43
α-Copaene	1377	1376	4.01
7-epi-Sesquithujene	1391	1391	0.17
β-Elemene	1393	1390	0.45
α-Gurjunene	1410	1409	1.98
α-cis-Bergamotene	1415	1415	0.11
(E)-Caryophyllene	1418	1418	7.85
β-Gurjunene	1433	1432	0.25
α-trans-Bergamotene	1436	1434	3.73
Aromadendrene	1439	1441	3.85
α-Himachalene	1449	1451	0.50
α-Humulene	1454	1454	1.24
allo-Aromadendrene	1461	1460	2.01
γ-Muurolene	1477	1479	2.49
Germacrene D	1481	1480	2.92
α-Curcumene	1482	1480	1.21
β-Selinene	1486	1485	1.74
δ-Selinene	1491	1492	0.38
Viridiflorene	1495	1496	4.52
α-Muurolene	1500	1499	1.72
β-Bisabolene	1508	1505	1.72
β-Curcumene	1511	1515	0.57
γ-Cadinene	1514	1513	1.99
δ-Cadinene	1524	1523	7.67
trans-Cadina-1,4-diene	1533	1534	0.37
α-Cadinene	1538	1538	0.27
(E)-Nerolidol	1565	1563	3.72
Spathulenol	1580	1578	6.65
Allyl-3-prenylcinnamate	2022	2016	0.70

^aOrder of elution and percentage of the compounds are given on the Rtx column.

^bIdentification: RI and MS data.

^cLinear retention indices relative to C8⿿C21 n-alkanes on a Rtx column.

^d[13], except for allyl-3-prenylcinnamate [14].