Antibacterial activities
A series of tubes with average liquid that contains
variable and well-known concentrations of
the chitooligosaccharide and its derivative were
prepared. Thereafter, each tube was inoculate with
the microorganism and incubated at 37 ∞C for
18 h. The presence or absence of the development
of microorganisms indicates the bacterial sensitivity
to the compound tested. The lowest concentration
that completely inhibits the bacterial growth was assigned as minimum inhibitory concentration
(MIC) (Qin et al., 2006).