Rediscovering Medicinal Amazonian Aromatic Plants: Piper carpunya (Piperaceae) Essential Oil as Paradigmatic Study

Table 1

Chemical characterization of P. carpunya EO performed by GC-MS and GC-FID analyses.

N°	Compound	ID Method	RI calc	RI lit
1	-thujene	RI, MS	920	924	0.2
2	-pinene	Std	927	932	3.4
3	sabinene	Std	965	969	1.4
4	-pinene	Std	970	974	1.1
5	myrcene	RI, MS	985	988	1.4
6	-2-carene	RI, MS	995	1001	0.2
7	-phellandrene	RI, MS	1003	1002	1.1
8	-3-carene	RI, MS	1004	1008	0.3
9	-terpinene	RI, MS	1012	1014	3.9
10	p-cymene	RI, MS	1019	1020	3.4
11	limonene	Std	1023	1024	9.5
12	-phellandrene	RI, MS	1024	1025	5.6
13	1,8-cineole	Std	1026	1026	4.0
14	trans-E-ocimene	RI, MS	1041	1044	0.2
15	-terpinene	RI, MS	1051	1054	3.0
16	cis-sabinenehydrate	RI, MS	1065	1060	0.2
17	linalool	Std	1099	1095	1.5
18	1,3,8-p-menthatriene	RI, MS	1109	1110	0.3
19	3-thujen-2-ol	RI, MS	1168	1167	2.4
20	terpinen-4-ol	Std	1174	1174	0.3
21	neoisodihydrocarveol	RI, MS	1233	1229	0.6
22	cuminaldehyde	RI, MS	1237	1238	0.3
23	piperitone	Std	1250	1249	26.2
24	-terpinen-7-al	RI, MS	1279	1283	1.3
25	safrole	RI, MS	1283	1285	2.2
26	thymol	Std	1293	1289	0.9
27	carvacrol	RI, MS	1300	1298	0.7
28	-terpinylacetate	RI, MS	1354	1343	1.3
29	eugenol	Std	1361	1356	0.9
30	-copaene	RI, MS	1374	1374	0.4
31	-elemene	RI, MS	1387	1389	0.2
32	-longipinene	RI, MS	1397	1401	0.2
33	methyleugenol	RI, MS	1401	1403	4.5
34	-caryophyllene	Std	1408	1417	0.3
35	p-cymen-7-ol acetate	RI, MS	1422	1421	1.5
36	germacrene D	RI, MS	1474	1485	1.4
37	bicyclogermacrene	RI, MS	1488	1500	1.2
38	elemicin	RI, MS	1551	1555	7.2
39	trans-nerolidol	Std	1561	1561	0.2
40	spathulenol	RI, MS	1574	1577	0.7
41	globulol	RI, MS	1583	1585	0.5
42	viridiflorol	RI, MS	1592	1592	0.1
Total					96.2
Hydrocarbon monoterpenes					35.0
Oxygenated monoterpenes					41.2
Hydrocarbon sesquiterpenes					3.7
Oxygenated sesquiterpenes					1.5
Phenylpropanoids					14.8

Compounds are listed in order of elution from a Varian VF-5ms column.
Identification method adopted for each compound.
Retention indices calculated on a Varian VF-5ms column.
Relative area percentage (peak area relative to total peak area %).