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Table 4 Qualitative and quantitative compositions (%) of the essential oils from winter and summer leaves

From: Traits of seasonal dimorphism associated with adaptation to cold stress in Origanum dictamnus L. (Lamiaceae)

Components a AI b Winter leaves Summer leaves Identification c
α-Thujene 926 n.d. 0.4 AI, MS
α-Pinene 932 n.d. 0.3 AI, MS, Co-GC
Camphene 946 n.d. 0.2 AI, MS
Sabinene 972 n.d. 0.1 AI, MS
β-Pinene 974 n.d. 0.1 AI, MS, Co-GC
1-Octen-3-ol 980 0.2 0.1 AI, MS
3-Octanone 988 0.3 0.2 AI, MS
β-Myrcene 991 n.d. 0.6 AI, MS, Co-GC
3-Octanol 997 0.5 0.1 AI, MS
α-Phellandrene 1002 n.d. 0.1 AI, MS
Iso-Sylvestrene 1007 n.d. Tr AI, MS
α-Terpinene 1017 0.1 1.7 AI, MS
p -Cymene 1024 59.2 18.5 AI, MS, Co-GC
Sylvestrene 1026 0.1 0.5 AI, MS
γ-Terpinene 1058 0.9 16.6 AI, MS, Co-GC
Cis-Sabinene hydrate 1067 2.1 0.8 AI, MS
Terpinolene 1087 n.d. 0.2 AI, MS
p-Cymenene 1088 0.3 n.d. AI, MS
Trans-Sabinene hydrate 1095 0.5 0.2 AI, MS
Trans-Pinocarveol 1138 0.2 n.d. AI, MS
Camphor 1142 0.4 n.d. AI, MS, Co-GC
Trans-Verbenol 1142 0.4 n.d. AI, MS
Borneol 1165 9.2 2.3 AI, MS, Co-GC
Terpinen-4-ol 1176 1.2 0.8 AI, MS, Co-GC
p-Cymen-8-ol 1184 1.9 0.2 AI, MS
α-Terpineol 1190 0.2 0.1 AI, MS
Cis-Dihydro carvone 1196 0.3 0.1 AI, MS
Cumin aldehyde 1240 0.9 n.d. AI, MS
Carvacrol methyl ether 1244 0.1 n.d. AI, MS
Thymoquinone 1250 5.1 n.d. AI, MS
Bornyl acetate 1288 0.9 0.1 AI, MS, Co-GC
Thymol 1292 0.3 0.1 AI, MS, Co-GC
Carvacrol 1301 8.3 42.4 AI, MS
α-Cubebene 1349 n.d. 0.5 AI, MS
Carvacrol acetate 1374 0.8 n.d. AI, MS
α-Ylangene 1375 0.5 n.d. AI, MS
α-Copaene 1375 n.d. 4.1 AI, MS
β-Cubebene 1390 0.1 0.8 AI, MS
β-Caryophyllene 1421 0.8 3.7 AI, MS, Co-GC
Cis-Muurola-3,5-diene 1445 n.d. 0.1 AI, MS
α-Humulene 1454 n.d. 0.2 AI, MS, Co-GC
Cis-Cadina-1(6),4-diene 1462 n.d. 0.3 AI, MS
Germacrene D 1482 n.d. 0.2 AI, MS
Trans-Muurola-4(14),5-diene 1492 n.d. 0.1 AI, MS
γ-Amorphene 1495 n.d. 0.1 AI, MS
α-Muurolene 1500 n.d. 0.1 AI, MS
δ-Amorphene 1509 n.d. 0.1 AI, MS
Germacrene A 1510 0,1 n.d. AI, MS
γ-Cadinene 1516 n.d. 0.2 AI, MS
Trans-Calamanene 1525 0,1 n.d. AI, MS
δ- Cadinene 1525 0,1 1.6 AI, MS
Trans-Cadina-1,4-diene 1533 n.d. 0.1 AI, MS
α-Cadinene 1539 n.d. 0.1 AI, MS
Caryophyllene oxide 1583 2.7 0.5 AI, MS, Co-GC
1,10-di-epi-Cubenol 1616 n.d. 0.2 AI, MS
TOTAL   98.8 99.8  
Essential oil yield (%)   1.05 2.78  
  1. aCompounds listed in order of elution from an HP-5 MS capillary column; bAI: Arithmetic indices as determined on a HP-5 MS capillary column using a homologous series of n-alkanes (C9-C25); cIdentification method: AI = Arithmetic index; MS = mass spectrum; Co-GC = coinjection with authentic compound. Concentrations below 0.05% are marked as Tr (traces); n.d.: not detected.