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Table 2 Anti-microbial activity of RE against different ESBL resistant K.pneumonia isolates using disc diffusion method. % of biofilm inhibition at 1000 µg/ml and IC50 value of biofilm inhibition of RE against various resistant strains of K.pneumonia isolates. Results were expressed in Mean ± SD

From: Anti-microbial and anti-cancer efficacy of acetone extract of Rosa chinensis against resistant strain and lung cancer cell line

S.NO

Resistant Cultures

Zone of inhibition (mm)

% of inhibition of biofilm formation at 1000 µg/ml

IC50 Value in inhibiting the biofilm formation

25 µg/ml

50 µg/ml

75 µg/ml

100 µg/ml

1

R1

6.7 ± 0.63

7.1 ± 0.81

7.5 ± 0.09

8.2 ± 0.081

62.06 ± 0.45

26.5 ± 0.45 µg/ml

2

R2

3.5 ± 0.009

4.2 ± 0.9

5.3 ± 0.072

6.5 ± 0.009

48.38 ± 0.63

51.8 ± 0.63 µg/ml

3

R3

4.3 ± 0.045

5.4 ± 0.45

6.1 ± 0.45

6.8 ± 0.18

60.71 ± 0.63

37.89 ± 0.63 µg/ml

4

R4

4.5 ± 0.072

5.6 ± 0.081

6.2 ± 0.072

6.9 ± 0.018

40 ± 1.8

66.09 ± 1.8 µg/ml