Peptide Extract from Olivancillaria hiatula Exhibits Broad-Spectrum Antibacterial Activity
Table 1
Zones of inhibition (mm) of peptide extract against test microorganisms.
Zone of inhibition (mm)
Microorganism (Gram status)
Peptide Extract (5 mg/ml)
Positive control Cipro (1mg/ml)
Negative control
E. coli (-)
30.9 ± 0.2
51.5 ± 1.3
-
K. pneumonia (-)
28.9 ± 0.8
48.8 ± 1.2
-
S. paratyphi (-)
27.4 ± 0.5#
25.0 ± 6.1
-
P. mirabilis (-)
12.1 ± 0.6
41.0 ± 0.2
-
N. gonorrhea (-)
31.0 ± 0.4
40.0 ± 0.8
-
V. cholera (-)
30.0 ± 0.7
40.3 ± 0.6
-
P. aeruginosa (-)
27.0 ± 0.7
53.3 ± 0.9
-
S. aureus (+)
28.5 ± 2.1
39.2 ± 0.9
-
E. faecalis (+)
33.2 ± 3.0#
46.5 ± 1.9
-
Values reported as mean ± standard deviation of three replicate experiments; and # activity at 10 mg/mL and 50 mg/mL, respectively (ZI not observed at 5mg/mL); negative control (25 % ACN in 0.1 % TFA).
