3.2.4. Relation between type and concentration of metal ion before and
after complexation with chitosan and the antimicrobial properties of
thereof treated jute fabric
Table 4 summarizes the antimicrobial properties of jute fabric
treated with Ag1+, Zn2+ and Zr2+ ions in its native form or complexed
with 1% chitosan. The inhibition zones formed with those
samples treated with 1% aqueous chitosan solution are also setout
in the same table for comparison. Results of Table 4 reveal that:
(i) Jute fabrics treated with uncomplexed chitosan (zero metal
ion concentration) show an antimicrobial properties
towards S. aureus and the observed inhibition zone
amounted 4.5 mm, whereas no observed antifungal properties
was observed against C. albicans.
(ii) Jute samples treated with metal ions show antibacterial and
antifungal properties, both of them depend on the type and
concentration of metal salts used. It is further observed from