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Table 3 Antibacterial activity of A. lasiantha extracts against pathogenic bacteria

From: Bio-guided profiling and HPLC-DAD finger printing of Atriplex lasiantha Boiss

Extracts Codes

Diameter of growth zone inhibition Zone (mm ± SD at 100 μg/disc; MIC: μg/ml)

Gram negative bacteria

Gram positive bacteria

K. pneumoniae

MIC

M. luteus

MIC

E.coli

MIC

B. subtilis

MIC

S.aureus

MIC

N

7.9 ± 0.45

> 100***

7 ± 0.97

> 100***

8.6 ± 1.20

> 100***

7.1 ± 0.62

> 100***

–

–

C

7.7 ± 0.9

> 100***

8 ± 0.43

> 100***

8.3 ± 0.9

> 100***

7.4 ± 1.04

> 100***

–

–

EA

7.2 ± 0.61

> 100***

9 ± 0.57

> 100***

7.5 ± 0.78

> 100***

7 ± 0.36

> 100***

–

–

A

–

–

–

–

7.5 ± 0.54

> 100***

–

–

–

–

E

7.1 ± 0.54

> 100***

8 ± 0.68

> 100***

7.1 ± 0.69

> 100***

–

–

–

–

M

7.0 ± 0.82

> 100***

–

–

8.5 ± 1.2

> 100***

–

–

–

–

W

–

–

–

 

–

–

–

–

–

–

NEA

8.5 ± 0.29

> 100***

7 ± 0.43

> 100***

7.1 ± 0.25

> 100***

–

–

–

–

EN

7.3 ± 0.84

> 100***

8 ± 0.53

> 100***

7.3 ± 0.19

> 100***

–

–

–

–

MEC

8.1 ± 0.32

> 100***

–

–

7.1 ± 0.23

> 100***

–

–

–

–

MEEA

–

–

–

–

–

–

9 ± 0.74

100***

–

–

MEA

8.3 ± 0.63

>  100***

–

–

–

–

–

–

–

–

AW

–

–

–

–

–

–

11 ± 0.65

100***

–

–

MD

–

–

–

–

–

–

–

–

–

–

PC

12 ± 1.12

1.56

23 ± 1.04

0.78

28 ± 1.09

0.39

21 ± 0.9

3.12

14 ± 0.7

6.25

  1. Results were presented as mean ± S.D. (n = 3). ***: P < 0.001. -- = No activity, PC: Positive Control (Cefixime), N: n-hexane, C: Chloroform, EA: Ethyl acetate, A: Acetone, E: Ethanol, M: Methanol, W: Distilled water, NEA: n-hexane-Ethyl acetate, EN: ethanol-n-hexane, MEC: methanol-chloroform MEEA: Methanol-Ethyl acetate, MEA: methanol-acetone, AW: acetone-water, MD: methanol-water