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Table 1 Antibiofilm activity of actinobacterial crude extracts against biofilm-forming bacteria

From: Control of pathogenic bacteria using marine actinobacterial extract with antiquorum sensing and antibiofilm activity

Pathogen

Antibiofilm activity

Crude extract (mg/mL)

% Activity

1AC

11AC

14PM

15PM

16PM

18PM

20PM

CW01

CW17

TB12

SA

 

5

65 ± 1.57

87 ± 0.80a

78 ± 0.56

43 ± 0.97

64 ± 3.51

46 ± 2.12

55 ± 2.36

76 ± 2.55

74 ± 0.68

44 ± 1.00

 

10

90 ± 0.38a

90 ± 0.61a

79 ± 1.84

66 ± 1.96

75 ± 0.22

74 ± 0.47

76 ± 1.64

77 ± 0.81

75 ± 0.07

62 ± 0.44

BC

 

5

89 ± 0.27a

85 ± 0.56

76 ± 0.23

78 ± 1.04

84 ± 1.26

57 ± 1.04

86 ± 0.93

84 ± 0.25

85 ± 1.21

81 ± 0.91

 

10

90 ± 1.46a

87 ± 1.34

76 ± 1.34

83 ± 1.55

87 ± 1

69 ± 0.31

88 ± 1.01

87 ± 0.63

85 ± 1.43

84 ± 1.24

EF

 

5

49 ± 3.53

70 ± 0.22

12 ± 2.84

36 ± 2.88

43 ± 1.93

15 ± 4.00

27 ± 1.60

76 ± 2.47

83 ± 0.62a

33 ± 4.84

Inhibition

10

82 ± 1.00

71 ± 2.37

34 ± 1.27

71 ± 0.12

77 ± 0.57

40 ± 1.24

50 ± 1.90

83 ± 0.89

84 ± 1.75a

81 ± 1.07

VC

5

93 ± 0.23

89 ± 0.34

90 ± 2.72

X

93 ± 0.82

X

X

92 ± 1.01

92 ± 0.30

94 ± 0.50a

 

10

76 ± 1.58

79 ± 3.59

84 ± 1.75a

X

82 ± 2.15

X

X

83 ± 1.67

70 ± 1.27

58 ± 1.61

ST

 

5

76 ± 0.34

83 ± 0.26

84 ± 0.23

80 ± 0.90

81 ± 1.53

81 ± 0.46

85 ± 0.33a

80 ± 2.82

81 ± 0.38

81 ± 1.36

 

10

56 ± 3.02

63 ± 4.66

50 ± 1.49

54 ± 1.34

27 ± 0.27

76 ± 0.51a

59 ± 0.13

63 ± 2.62

66 ± 3.62

25 ± 0.92

PA

 

5

29 ± 2.21

70 ± 2.77

49 ± 1.98

38 ± 2.13

50 ± 1.13

39 ± 3.25

37 ± 4.07

47 ± 0.19

54 ± 0.75a

42 ± 4.32

 

10

83 ± 4.32

82 ± 2.00

86 ± 1.82

91 ± 4.35

85 ± 2.14

81 ± 3.18

89 ± 1.63

93 ± 2.34a

87 ± 3.97

37 ± 4.55

SA

 

5

62 ± 2.05a

32 ± 2.16

41 ± 1.95

38 ± 0.45

40 ± 1.75

38 ± 1.24

42 ± 4.78

45 ± 1.85

50 ± 2.91

37 ± 4.94

 

10

77 ± 0.70a

49 ± 1.59

54 ± 0.86

74 ± 0.78

59 ± 0.88

65 ± 1.62

62 ± 1.62

60 ± 1.08

59 ± 1.61

61 ± 1.00

BC

 

5

61 ± 1.38

67 ± 1.22

64 ± 1.11

67 ± 0.42

65 ± 1.33

67 ± 2.23

75 ± 1.33a

72 ± 1.14

73 ± 0.91

67 ± 0.17

 

10

84 ± 1.94

80 ± 1.31

78 ± 0.36

68 ± 1.12

84 ± 2.16

75 ± 1.88

85 ± 0.97a

83 ± 1.12

74 ± 1.74

79 ± 0.81

EF

 

5

43 ± 0.96

44 ± 4.23

50 ± 3.19

47 ± 3.35

47 ± 1.82

45 ± 4.90

46 ± 4.48

50 ± 0.68

52 ± 1.55a

43 ± 1.40

Destruction

10

58 ± 3.15

63 ± 1.64

55 ± 2.39

70 ± 1.43

72 ± 2.03a

70 ± 1.95

65 ± 2.40

52 ± 0.86

63 ± 0.93

45 ± 1.69

VC

5

 

52 ± 1.05

 

X

71 ± 0.70

X

X

73 ± 0.74a

71 ± 0.92

70 ± 0.61

 

10

11 ± 2.46

48 ± 2.72

62 ± 0.75a

X

13 ± 4.33

X

X

43 ± 1.64

52 ± 2.70

43 ± 3.06

ST

 

5

57 ± 0.85

43 ± 2.10

54 ± 0.50

34 ± 1.60

29 ± 0.36

58 ± 0.58

51 ± 0.45

66 ± 0.19

73 ± 0.51a

64 ± 0.38

 

10

56 ± 1.71

20 ± 1.25

72 ± 1.46

54 ± 0.69

47 ± 3.29

82 ± 014a

64 ± 0.30

79 ± 0.37

78 ± 0.82

42 ± 1.95

PA

 

5

11 ± 1.52

53 ± 0.97

29 ± 1.68

54 ± 4.07

63 ± 4.67a

17 ± 3.27

59 ± 2.92

38 ± 2.82

26 ± 4.79

58 ± 2.19

 

10

43 ± 0.92

45 ± 1.09

41 ± 3.22

57 ± 2.95

42 ± 0.82

50 ± 2.79

55 ± 2.03

50 ± 0.71

55 ± 2.73

50 ± 0.54

  1. Staphylococcus aureusATCC 29213; Bacillus cereusATCC 14579; Enterococcus faecalisATCC 33186, Vibrio cholerae, SalmonellaTyphimurium, Pseudomonas aeruginosaATCC 27853
  2. aHighest activity, X Have antimicrobial activity, −No activity