Table 6 Percentage of biofilm formation inhibition of the extracted essential oils from Syzygium samarangense and Syzygium malaccense leaves by supercritical fluid (SF) (p < 0.001)

Reference strains

13.7

11.7

5.85

2.93

1.46

0.73

0.37

11.7

5.85

2.93

1.46

0.73

0.37

S. aureus

67.15

62.79

53.64

50.94

44.28

42.62

22.66

82.95

69.65

58.21

52.18

49.90

41.37

E. faecalis

82.02

74.38

60.54

55.79

55.37

54.55

51.45

76.45

61.78

60.33

54.55

51.45

47.73

E. coli

67.54

42.69

35.67

31.58

30.41

30.12

17.84

45.32

34.21

31.58

25.44

23.10

13.16

C. albicans

79.60

72.93

62.02

61.01

57.98

54.55

48.28

65.66

61.41

46.67

38.79

19.39

8.48