Skip to main content
. 2014 Jan 21;2014:167309. doi: 10.1155/2014/167309

Table 3.

Antibacterial activity of different solvent extracts from the stems of Passiflora species.

Bacteria Plant extracts inhibition zone diameter in mm STD
Passiflora edulis Passiflora quadrangularis Passiflora maliformis
PE ACT MET PE ACT MET PE ACT MET
Gram-positive bacteria
S. aureus 7.3 ± 0.2e 8.3 ± 0.2e 9.3 ± 0.3de 9.6 ± 0.6de 11.7 ± 0.5cd 16.2 ± 0.2b 9.0 ± 0.1e 13.4 ± 0.1c 14.7 ± 0.5bc 24.7 ± 0.6a
B. cereus 10.4 ± 0.2bcd 8.7 ± 0.2d 12.5 ± 0.7b 9.5 ± 0.4cd 8.2 ± 0.1d 10.1 ± 0.6bcd 8.5 ± 0.2d 9.6 ± 0.2cd 11.3 ± 0.3bc 28.6 ± 0.7a
B. subtilis 7.0 ± 0.1f 10.3 ± 0.3d 11.7 ± 0.5cd 8.5 ± 0.4f 10.4 ± 0.2d 13.3 ± 0.3c 10.1 ± 0.6de 15.1 ± 0.2b 15.4 ± 0.1b 30.8 ± 0.8a
L.  monocytogenes 11.3 ± 0.3b 11.0 ± 0.4b 11.2 ± 0.8b 13.0 ± 0.5b 10.9 ± 0.5b 12.1 ± 1.0b 10.7 ± 0.8b 11.0 ± 0.4b 11.2 ± 0.9b 21.7 ± 0.5a
S. gallolyticus 10.0 ± 0.5b 9.7 ± 0.1b 10.4 ± 0.1b 10.7 ± 0.5b 10.3 ± 0.4b 11.5 ± 0.6b 9.7 ± 0.4b 10.3 ± 0.3b 10.7 ± 0.1b 28.3 ± 0.2a
Gram-negative bacteria
P. aeruginosa 8.1 ± 0.3b 11.3 ± 0.3a 7.8 ± 0.2b 10.9 ± 0.2a 10.5 ± 0.3a 7.2 ± 0.5b 6.6 ± 0.4b 6.8 ± 0.7b 6.5 ± 0.6b 12.3 ± 0.6a
K. oxytoca 9.4 ± 0.2c 12.1 ± 0.5b 8.1 ± 0.2cd 11.9 ± 0.9b 11.4 ± 0.3b 8.2 ± 0.5cd 7.5 ± 0.5d 7.8 ± 0.1cd 7.9 ± 0.3cd 26.2 ± 0.5a
P. vulgaris 0.0 ± 0.0 0.0 ± 0.0 0.0 ± 0.0 0.0 ± 0.0 0.0 ± 0.0 0.0 ± 0.0 0.0 ± 0.0 0.0 ± 0.0 0.0 ± 0.0 23.3 ± 0.6
S. enteritidis 0.0 ± 0.0 0.0 ± 0.0 7.3 ± 0.2b 0.0 ± 0.0 0.0 ± 0.0 7.4 ± 0.3b 0.0 ± 0.0 0.0 ± 0.0 6.6 ± 0.5b 21.5 ± 0.2a
E. coli 10.3 ± 0.4ab 8.4 ± 0.2b 11.8 ± 0.3a 7.6 ± 0.6b 7.5 ± 0.5a 8.0 ± 0.2b 9.5 ± 0.1ab 7.6 ± 0.4b 7.5 ± 0.3b 11.3 ± 0.1a

Different superscript letters within the same row indicate significant differences (Tukey's test, P < 0.05) of the means for each solvent extract of the Passiflora. PE: petroleum ether; ACT: acetone; MET: methanol; STD: standard (chloramphenicol).