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Table 3 Selection of vegetal extracts according to inhibition zones (mm) produced in Staphylococcus aureus, Escherichia coli, and Staphylococcus haemolyticus after addition of extracts from Cerrado plant leaves in an agar diffusion test

From: Plants of the Cerrado with antimicrobial effects against Staphylococcus spp. and Escherichia coli from cattle

Vegetal species

Extracts

Tannin content (%)

S. haemolyticus

S. aureus

Escherichia coli

135 AE

182

178

ATCC

E2

E3

ATCC

Caryocar brasiliense in flowering

Ethanolic

1.99 ± 0.12

26.7 ± 2.5

14.1 ± 1.9

30.2 ± 3.4

20.2 ± 3.3

0.0

0.0

19.0 ± 1.9

C.brasiliense in flowering

Aqueous

1.37 ± 0.08

23.5 ± 3.5

14.3 ± 1.8

21.8 ± 2.4

19.3 ± 2.3

0.0

0.0

14.2 ± 2.7

C. brasiliense in fruiting

Aqueous

1.25 ± 0.02

24.3 ± 2.6

14.0 ± 2,7

21.0 ± 2.0

23.8 ± 2.0

0.0

0.0

16.4 ± 3.7

C. brasiliense flowerless and fruitless

Aqueous

2.66 ± 0.22

20.2 ± 2.0

11.1 ± 2.6

16.2 ± 4.1

15.8 ± 3.1

0.0

0.0

13.8 ± 5.0

Annona crassiflora

Aqueous

2.59 ± 1.47

12.8 ± 2.3

0.0

15.9 ± 2.7

13.1 ± 4.0

0.0

8.0 ± 3.0

0.0

Annona crassiflora

Ethanolic

4.20 ± 2.38

9.3 ± 2.1

14.5 ± 1.2

15.9 ± 3.1

14.6 ± 3.4

0.0

19.8 ± 4.1

11.1 ± 3.4

Piptadenia viridiflora

Aqueous

0.23 ± 0.01

16.4 ± 2.3

0.0

19.1 ± 3.1

0.0

0.0

11.5 ± 2.7

29.9 ± 5.5

Piptadenia viridiflora

Ethanolic

1.75 ± 0.21

9.0 ± 0.95

0.0

13.3 ± 3.3

17.1 ± 3.1

0.0

0.0

27.0 ± 4.9

Schinopsis brasiliensis

Aqueous

0.16 ± 0.37

16.4 ± 2.3

18.0 ± 0.3

24.1 ± 2.9

20.8 ± 3.1

9.4 ± 1.0

0.0

22.3 ± 3.3

Schinopsis brasiliensis

Ethanolic

0.72 ± 0.34

21.7 ± 3.6

21.2 ± 4.3

22.5 ± 2.7

22.8 ± 2.3

0.0

16.2 ± 3.4

20.6 ± 5.6

Serjania lethalis

Ethanolic

6.37 ± 0.29

13.2 ± 2.5

11.0 ± 2.2

14.5 ± 3.0

18.5 ± 4.7

0.0

10.0 ± 3.0

11.7 ± 4.6

Casearia sylvestris

Ethanolic

7.36 ± 0.54

8.2 ± 1.3

0.0

10.9 ± 2.0

7.5 ± 4.3

0.0

0.0

15.0 ± 3.8

Ximenia americana

Ethanolic

0.29 ± 0.02

0.0

0.0

0.0

24.2 ± 4.5

0.0

0.0

0.0