Table 1. Inhibitory activity of methanol and hexane extracts of
Halymenia durvillei
red seaweed against five types of bacterial pathogens
Pathogenic bacteria
Zone of inhibition (mm)
Methanol extract
1)
Hexane extract
1)
Escherichia coli
0
8.5
Salmonella typhi
26.2
11.3
Pseudomonas aeruginosa
9.6
0
Aeromonas hydrophila
9.3
21.0
Vibrio harveyi
8.9
8.0
DMSO (negative control)
0
Ciprofloxacin (positive control)
13.3
Data is the average of three repetitions.
DMSO, dimethyl sulfoxide.