A Comparison of the Volatile Components of Cold Pressed Hamlin and Valencia (Citrus sinensis (L.) Osbeck) Orange Oils Affected by Huanglongbing

Table 7

Hamlin asymptomatic early versus late compound concentration.

Compound	Early concentration (ppm)	Late concentration (ppm)	value	Difference
α-Pinene	5267	4757		9.7%
β-Myrcene	12807	14133		9.3%
Linalool	660	447		32.3%
Citronellal	506	648	<0.000	21.9%
Decanal	858	1302	<0.000	34.1%
Citronellol	129	128	0.868	0.78%
Neral	492	438	0.002	11.0%
Carvone	69.9	45.6	<0.000	34.8%
2-Decenal		nd	nd	nd
Geranial	732	650	0.029	11.2%
Perillaldehyde	140	122	0.000	12.9%
2,4-Decadienal	nd	nd	nd	nd
Citronellyl acetate	43.5	50.2	0.003	13.3%
α-Terpinyl acetate	52.8	55.1	0.323	4.2%
Dodecanal	767	875	0.0005	12.3%

differences at α ≤ 0.01; = not detected.