The problem of plastic waste is one of the biggest environmental problems. Plastic
production continues to grow. One possible solution is the development of new materials
capable of spontaneous degradation in the environment. An example of such a material
is chitosan, obtained from chitin, which is the basic building block of the exoskeleton of
crabs and shellfish. Chitosan is the collective name for a group of chitins deacetylated to
varying degrees. The thesis was written as part of the Microbeast project. The influence
of commercial enzymes Laccase, Cellulase, Lipase, and alcohol dehydrogenase on the
degradation of prepared chitosan films over a period of 48 hours was investigated. These
enzymes were selected because of their availability and presence in soil. Based on the
results, cellulase and lipase had the greatest impact, while alcohol dehydrogenase and
laccase had no significant effect. Chitosan was more easily degradable at pH 6 compared
to pH 7.
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