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Table 2 Well diffusion assay of different C. calcitrapa extracts

From: New perspectives of purple starthistle (Centaurea calcitrapa) leaf extracts: phytochemical analysis, cytotoxicity and antimicrobial activity

Tested microorganisms

MeOH

EtOH

EtOAC

Me2CO

DCM:MeOH

Antibiotic/

Mycotic

Candida albicans ATCC 10231

13 ± 1.15

Enterococcus faecalis ATCC 29212

13 ± 0.29

9 ± 0.00

13.25 ± 0.14

Escherichia coli ATCC 25922

15.5 ± 0.29

12.25 ± 0.14

14 ± 0.00

12.5 ± 0.29

13 ± 0.00

Listeria monocytogenes

13.17 ± 0.17

18.5 ± 0.29

9.25 ± 0.14

17 ± 0.00

Methicillin resistant S. aureus ATCC 33591

21 ± 0.00

12.5 ± 0.29

20 ± 0.00

14 ± 0.58

12.5 ± 0.29

16 ± 1.15

Staphylococcus aureus ATCC 25923

16.17 ± 0.17

13.5 ± 0.29

21.17 ± 0.17

12 ± 0.29

13.5 ± 0.29

16.75 ± 0.43

Agrobacterium tumefaciens

21.83 ± 0.17

21 ± 0.29

28.5 ± 0.29

16.17 ± 0.17

14 ± 0.00

Erwinia amylovora NCPPB 683

24.5 ± 0.29

20.5 ± 0.87

26.5 ± 1.44

20.5 ± 0.29

23 ± 0.29

Pseudomonas syringae pv. aptata P16

10.67 ± 0.33

9.83 ± 0.17

10.75 ± 1.01

11.33 ± 0.44

12.5 ± 0.87

Pseudomonas syringae pv. aptata P29

16 ± 0.58

14 ± 0.58

24.75 ± 0.14

19 ± 0.00

20 ± 0.58

Pseudomonas syringae pv. aptata P49

13.75 ± 0.43

11.5 ± 0.29

21 ± 0.00

12.5 ± 0.00

16.5 ± 0.29

Pseudomonas syringae pv. syringae GSPB 1142

19.75 ± 0.14

21 ± 0.00

30.5 ± 0.29

24.25 ± 0.43

27 ± 0.00

Xanthomonas arboricola pv. juglandis 320

Xanthomonas arboricola pv. juglandis 321

Xanthomonas campestris pv. campestris NCPPB 583

27 ± 0.00

22 ± 0.00

30 ± 0.00

27.25 ± 0.14

25.25 ± 0.14

  1. Antibiotic—vancomycin; Mycotic—nystatin; ─ no activity. The growth inhibition zones are expressed in mm and represented as mean
  2. values of three independent replicates ± SE