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Abstract
Natural Anti-oxidants for Bio-polymeric Materials
Rossella Arrigo Nadka Tzankova Dintcheva
In this work, three different bio-polymers, i.e. a commercial
starch-based polymer (Mater-Bi®) a bio-polyester (PLA), and
a bio-polyether (PEO) were additivated with quercetin, a
natural flavonoid antioxidants, in order to formulate biobased
films for eco-sustainable packaging and outdoor
applications. The photo-oxidation behavior of unstabilized
and quercetin stabilized films has been evaluated and
compared with that of films additivated with a commercial
synthetic light stabilizer. Obtained results show that
quercetin molecules are able to slow down the photodegradation
rate of all investigated bio-polymeric films,
opening new avenues in the formulation of fully renewable
polymer-based systems.
