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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