Effects of Different Drying Conditions on Key Quality Parameters of Pink Peppercorns (Schinus terebinthifolius Raddi)

Table 4

Chemical composition (GC-MS data) and the yield of essential oil from S. terebinthifolius fruits (fresh and dried under the operating conditions of Table 1).

Compound			Relative area (%)
			1	2	3	4	5	6	7	8	9	10	11	Fresh fruits
α-Pinene	932	933	3.65	3.52	5.12	2.84	4.87	1.49	5.15	3.61	3.72	5.06	2.86	5.36
Sabinene	969	973	2.24	2.14	1.89	1.78	2.20	1.28	2.32	2.03	1.52	2.12	1.50	2.45
β-Myrcene	988	991	12.14	10.90	11.61	11.03	12.16	8.12	11.03	11.73	11.21	11.66	10.91	12.75
α-Phellandrene	1002	1006	18.48	17.84	16.35	16.59	19.64	14.26	19.31	18.69	17.34	17.61	17.16	20.46
δ-3-Carene	1008	1012	18.41	16.81	18.37	16.08	18.60	13.67	17.54	17.00	17.43	17.82	17.04	19.14
n.i.	—	1017	—	—	—	—	0.38	—	—	—	—	—	0.39	—
p-Cymene	1020	1025	1.36	0.68	2.04	1.21	0.90	0.69	0.66	0.83	1.26	1.09	1.09	0.73
Limonene	1024	1029	17.77	16.30	17.42	16.49	17.91	15.19	16.75	17.43	17.12	15.90	17.37	18.28
n.i.	—	1058	—	—	—	—	0.46	—	—	—	0.53	—	0.54	—
Terpinolene	1086	1089	1.38	1.26	1.19	1.29	1.33	1.35	1.24	1.33	1.32	1.20	1.44	1.31
n.i.	—	1178	0.68	—	0.74	0.61	0.74	0.58	0.52	0.62	1.00	0.64	1.04	0.68
n.i.	—	1337	—	—	—	—	—	0.61	—	—	—	—	—	—
Caryophyllene	1417	1418	4.50	4.72	4.27	5.20	3.99	5.83	4.08	4.71	4.66	4.52	5.42	3.73
Germacrene D	1484	1480	8.04	8.91	7.13	9.19	6.83	10.90	7.32	8.34	6.47	7.91	8.17	6.25
n.i.	—	1495	—	—	—	—	—	0.71	—	—	—	—	—	—
δ-Cadinene	1522	1523	0.93	1.05	1.10	1.33	1.01	1.45	1.03	1.19	1.65	1.34	1.78	0.94
Elemol	1548	1550	1.38	1.83	1.02	1.82	1.05	6.52	3.50	1.58	1.37	1.55	2.67	0.90
Germacrene B	1559	1555	0.64	0.75	—	0.79	0.57	0.99	0.66	0.72	—	0.67	0.76	—
γ-Eudesmol	1630	1631	4.01	5.70	5.83	5.97	3.39	6.07	3.48	4.94	5.77	4.90	4.27	3.29
β-Eudesmol	1650	1650	1.19	1.75	1.54	1.85	0.96	2.23	1.29	1.47	1.74	1.60	1.38	0.90
α-Eudesmol	1652	1653	2.42	3.16	3.28	3.80	2.03	3.15	2.47	2.67	3.62	3.19	2.38	1.96
n.i.	—	1654	—	—	—	—	—	1.27	—	—	—	—	—	—
n.i.	—	1667	—	0.79	—	—	—	—	—	—	—	—	—	—
n.i.	—	1676	0.81	1.24	1.09	1.40	0.98	2.81	1.64	1.12	1.59	1.21	1.83	0.86
n.i.	—	1776	—	0.65	—	0.73	—	0.85	—	—	0.68	—	—	—
Monoterpenes (%)			76.1	69.5	74.7	67.9	79.2	56.6	74.5	73.3	72.4	73.1	71.4	81.2
Yield (%)			5.24	4.87	5.48	4.38	5.38	4.66	5.52	5.64	4.67	5.33	4.90	5.56

Retention index [18]; calculated retention index (average value); not identified; relative percentage obtained from the peak area of the chromatograms; extraction yield according to (4).