Table 2.
The major chemical compounds in the essential oil of O. majorana in the different countries.
| Country | Major compounds | References |
|---|---|---|
| Morocco | Terpinen-4-ol (34.1%), α-Terpinene (19.2%), Terpineol (8.9%) | [15] |
| Iran | Terpinen-4-ol (32.69%), γ -Terpinene (12.88%), trans-Sabinene hydrate (8.47%), α -Terpinene (7.98%) | [27] |
| Iran | Terpinene-4-ol (22.15%-25.65%), γ-Terpinene (13.94%-16.22%), α-Terpinene (8.11%-10.39%), α-Terpineol (4.53%-6.39%) | [28] |
| India | Terpinen-4-ol (31.15%), cis-Sabinene hydrate (15.76%), p-Cymene (6.83%), Sabinene (6.91%), trans-Sabinene hydrate (3.86%), α-Terpineol (3.71%) | [29] |
| Tunisia | Terpinene-4-ol, γ-Terpinene, cis-Sabinene-hydrate, α-Terpineol | [30] |
| China | Terpinen-4-ol (33.0 %), Caryophyllene oxide (11.9 %), p-Cymene (6.8 %), α-Terpineol (6.7 %), Spathulenol (6.0 %) | [31] |
| Egypt | Terpinen-4-ol (30.4%), γ-Terpinene, cis-Sabinene hydrate, α-Terpinene, Sabinene, α-Terpineol | [32] |
| Reunion Island | Terpinen-4-ol (38.4%), cis-Sabinene hydrate (15.0%), p-Cymene (7.0%), γ-Terpinene (6.9%). | [40] |
| Albania | Terpinen-4-ol (21.3%), trans-Sabinene hydrate (15.5%), γ-Terpinene (14.0%), α-Terpinene (8.9%) | [41] |
| Tunisia | Terpinen-4-ol | [4] |
| Hungary | Terpinen-4-ol | [11] |
| Tunisia | Terpinen-4-ol (23.2%), cis-Sabinene hydrate (17.5%), γ-Terpinene (10.5%), p-Cymene (9%), α–Terpineol (5.6%), α-Terpinene (4.7%), trans-Sabinene hydrate (4.0%) | [14] |
| Nepal | Terpinen-4-ol (22.42%), Linalool (11.61%), γ-Terpinene (14.69%), α-Terpineol (7.02%), α-Phellandrene (9.8%), p-Cymene (8.91%) | [33] |
| Egypt | cis-Sabinene hydrate, Linalyl acetate, 𝛾-Terpinene | [23] |
| Cyprus | cis-Sabinene hydrate (7.4–33.3%), Terpinen- 4-01 (16.6–21.6%), α-Terpineol (7.3%), trans-Sabinene hydrate, (4.7%), γ-Terpinene (8.3%), α-Terpinene(4.7%) | [34] |
| Turkey | Trace amounts of Carvacrol. cis-Sabinene hydrate (30–44%), Terpinen-4-ol (8–14%) | [36] |
| Greece | 4-Terpineol (37%), p-Cymene (12%), α-Terpineol (7%) | [42] |
| Iran | Linalyl acetate (26.1%), Sabinene (12%) | [43] |
| Brazil | 𝛾-Terpinene (25.73%), 𝛼-Terpinene (17.35%), Terpinen-4-ol (17.24%), Sabinene (10.8%) | [44] |
| Venezuela | cis-Sabinene hydrate (30.2%), Terpinen-4-ol (28.8%), γ-Terpinene (7.2%), α-Terpineol (6.9%), trans-Sabinene hydrate (4.4%), Linalyl acetate (3.8%), α-Terpinene (3.6%) | [45] |