Table 3.
Identified phenolic compounds of the tea tree essential oil, %.
| Compound | RT 2 | RI 3 | M. alternifolia Composition ± SD |
|---|---|---|---|
| α-Thujene | 5.636 | 922 | 1.10 ± 0.01 |
| α-Pinene | 5.862 | 930 | 18.38 ± 0.05 |
| Camphene | 6.241 | 945 | 0.08 ± 0.00 |
| Sabinene | 6.932 | 970 | 0.35 ± 0.00 |
| β-Pinene | 7.047 | 974 | 3.19 ± 0.01 |
| Myrcene | 7.428 | 988 | 0.45 ± 0.00 |
| α-Phellandrene | 7.900 | 1004 | 0.09 ± 0.00 |
| Δ3-Carene | 8.098 | 1009 | 0.09 ± 0.00 |
| α-Terpinene | 8.311 | 1015 | 2.35 ± 0.02 |
| p-Cymene | 8.598 | 1023 | 4.30 ± 0.00 |
| Limonene | 8.758 | 1027 | 7.55 ± 0.04 |
| 1,8-Cineole | 8.835 | 1029 | 2.15 ± 0.01 |
| β-(E)-Ocimene | 9.439 | 1046 | 0.08 ± 0.00 |
| γ-Terpinene | 9.890 | 1058 | 14.01 ± 0.02 |
| p-Mentha-2,4(8)-diene | 10.891 | 1085 | 0.38 ± 0.00 |
| Terpinolene | 10.991 | 1088 | 3.56 ± 0.01 |
| Borneol | 14.240 | 1164 | 0.14 ± 0.00 |
| Terpinen-4-ol | 14.944 | 1180 | 38.53 ± 0.06 |
| α-Terpineol | 15.340 | 1190 | 2.16 ± 0.00 |
| γ-Terpineol | 15.606 | 1196 | 0.21 ± 0.00 |
| (E)-Caryophyllene | 25.448 | 1419 | 0.38 ± 0.00 |
| NI 1 | <0.50 | ||
| Total peak area | 564685150 |
1 Not identified; 2 Retention time; 3 Experimental retention indices based on n-alkane series under identical experimental conditions and comparison was done with the mass spectra library search NIST [67]; SD—standard deviation calculated for n (n = 3) gas chromatography–mass spectrometric (GC–MS) analysis.