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Water-interaction properties of composite polysaccharide films enriched with ammonium phosphate monobasic salt. Moisture content and water solubility as a function of NH4H2PO4 salt concentration of chitosan/sodium alginate_sodium carboxymethylcellulose in a weight ratio of (a) 1:1 or (b) 17:3 film. The red symbol (O) identifies the values of MC (%) and water-soluble portion (%) of crosslinked composite films.
