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Modified natural polymers obtained from kuzu starch





Key words: 

starch films, biopolymers, packaging, natural plant extracts.


Biodegradable and renewable films from kuzu starch, glycerol, polyethylene glycol 400 and different natural extracts such as yerba mate, aloe vera gel and eucalyptus oil were obtained by casting method. Density, hardness, thickness, thermal properties and water vapor permeability of starch films were studied. The results show that the natural extracts in kuzu films limited crystal growth and recrystallization of starch. Incorporation of yerba mate extract and aloe vera gel to the starch film insignificantly increases water vapor permeability.  This study provides information about the advantageous or disadvantageous of incorporation of natural extract to kuzu starch films and possible application of these films in food packaging market. Antimicrobial characteristics of natural extracts incorporated into packaging films suggest applications of these films as an active packaging.

dr inż. Magda MORAWSKA

Gdynia Maritime University     Department of Commodity Industrial Science and Chemistry ul. Morska 83, 81-225 Gdynia, Poland e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.




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