Abstract
High toxicity and multidrug resistance associated with various standard antimicrobial drugs have necessitated search for safer alternatives in plant-derived materials. In this study, we performed biological examination of chitosan-based hydrogel film loaded with ethyl acetate Salix alba leaves extract against 11 standard laboratory strains. FTIR showed regeneration of saccharide peak in CP1A at 1047 cm−1 and increased in height of other peaks. DSC exothermic decomposition peaks at 112 °C, 175 °C and 251 °C reveal the effect of extract on hydrogel film. From FESEM images, three-dimensional cross-linking and extract easily seen in the globular form from the surface. MTT assay on HEK 293 cells showed that CP1A was non-toxic. Minimum inhibitory concentration ranges from 4000 μg/ml to 125 μg/ml. Enterococcus faecium, Candida glabrata and Candida tropicalis were the most resistant, while Salmonella typhi and Candida guilliermondii were the most susceptible micro-organisms.
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