Table 3 Chemical composition of rosemary essential oil extracted by hydrodistillation, supercritical CO2 and olive oil maceration.

From: In sight on olive oil maceration and supercritical CO2 in extracting rosemary essential oil

Compound

Hydro distillation

Supercritical CO2

Maceration

Rt (min)

Area (%)

Rt (min)

Area (%)

Rt (min)

Area (%)

α-Pinene

7.447

11.38

8.353

2.68

7.447

14.44

Camphene

7.884

4.16

8.811

0.75

7.896

4.14

p-Cymene

10.531

2.69

    

1,8-cineole

10.746

50.60

11.58

37.54

10.688

62.67

Camphor

14.675

16.55

15.483

18.51

14.698

12.81

Borneol

15.473

8.52

16.290

18.79

15.526

3.75

6-Terpineol

15.561

0.67

    

4-Terpineol

15.905

1.05

    

α-Terpinol

16.394

4.38

17.32

10.77

15.99

0.50

Copaene

  

23.219

1.03

  

Caryophyllene

  

24.512

9.94

23.92

1.70

  1. Rt, retention time; min, minute; %, percentage; –, not detected. Measurements were performed twice, but α-terpinol was detected only once during the maceration procedure.