INVESTIGADORES
GARCIA Maria Alejandra
congresos y reuniones científicas
Título:
THERMO-COMPRESSION MOULDED BIODEGRADABLE FILMS BASED ON THERMOPLASTIC CORN STARCH AND CHITIN/CHITOSAN
Autor/es:
LÓPEZ, O.; GARCIA, M.A.; VILLAR, M.; PIZZO, P.; GENTILI, A.; RODRÍGUEZ, S.; ALBERTENGO, L.
Lugar:
Fortaleza
Reunión:
Conferencia; 6th Chitin Iberoamerican Symposium / 12th International Conference on Chitin and Chitosan (VI SIAQ / XII ICCC); 2012
Resumen:
The growing accumulation of non-biodegradable
waste together with the difficulty of recycling the
majority of packaging has stimulated the
development of biodegradable packaging from
renewable sources [1]. Among the natural
polymers, starch has advantages due to its low
cost, high availability, easy handling and
functionality. Despite these advantages, starch
films have poor mechanical properties and high
humidity ambient sensibility [2]. An alternative to
overcome these limitations consists in blend
starch with chitosan. The use of this biopolymer
improves starch film mechanical properties and,
due it is more hydrophobic than starch, enhances
film water vapor permeability. Even in the
literature are found many works related to films
based on starch and chitosan, the use of chitin is
less reported. Besides, the thermo-compression
method to obtain films from these biopolymers is
scarcely reported.
The aim of this work was to develop
biodegradable films based on thermoplastic corn
native starch (TPS), chitin and chitosan by
thermo-compression. The processing conditions
were optimized and the obtained materials were
characterized.