Sample time (h)

Positive Control

Sample 1

Sample 2

Average of 2 samples

Percentage variation respect to the positive control

Concentration of microorganism with the extract

0

3.35 × 108

2.78 × 108

3.20 × 108

2.99 × 108

−10.75%

24

1.17 × 108

2.58 × 107

3.41 × 107

3.00 × 107

−74.36%

48

1.44 × 107

2.38 × 106

1.88 × 106

2.13 × 106

−85.21%

Addition of extract on biofilm formed

0

1.88 × 107

1.16 × 107

1.04 × 107

1.10 × 107

−41.49%

24

1.08 × 108

4.20 × 107

4.43 × 107

4.36 × 107

−59.62%