The combination of the spectrophotometry method and potentiometric titration with XPS
appears to be a very powerful approach when evaluating in detail, how chitosan is applied as a fiber coating influences a fiber amino group content.
The functionalization of viscose fibers using precipitated chitosan is more efficient,
in contrast to the functionalization of fibers with acidic chitosan solution in the sense that it contributes more amino groups but, surprisingly,
this evidently does not influence the growth of pathogen microorganisms.