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Table 1 Essential oil constituents of C. macrocarpa branchlets and C. citriodora leaves

From: Bioactivity of essential oils extracted from Cupressus macrocarpa branchlets and Corymbia citriodora leaves grown in Egypt

Constituent RIa,b Percentage
C. macrocarpa
Percentage
C. citriodora
α-Pinene 925 0.1
Thujene 953 0.9 0.4
α-Myrcene 985 2.2 0.1
α-Phellandrene 1005 19.2
α-Terpinene 1015 3.0
Eucalyptol/1,8-Cineole 1017 2.0
m-Cymene 1023 0.4
Limonene 1031 2.1
Terpinolene 1035 1.8
Melonal 1037 0.9
γ-Terpinene 1067 5.3
α-Linalool 1089 1.5 0.4
(+)-Rose oxide 1100 1.2
trans-2-menthenol 1140 1.0
Isopulegol 1145 7.6
D-Camphor 1151 5.4
Citronellal 1159 6.6
Borneol 1175 0.1
Terpinen-4-ol 1192 23.7 0.5
α-Terpineol 1193 1.7 0.2
Piperitol 1205 0.7
α-Citronellal 1211 56.0
α-Citronellol 1233 17.3 14.7
Citronellic acid 1305 1.3 1.4
Cubebol 1501 1.1
Citronellol acetate 1511 12.3
Spathulenol 1564 0.3
Caryophyllene oxide 1571 1.2
Farnesol 1696 0.4
  1. aRI Retention Index
  2. bIdentification of the essential oil components was performed by comparison of mass spectra and RIs obtained in both columns with those of reference compounds and those of mass spectra libraries
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