The aim of this research was to prepare of bionanocomposite films based on chitosan (CH) incorpo-rated with Carum copticum essential oil and reinforced with cellulose nanofibers (CNF) or lignocellulosenanofibers (LCNF). The FTIR analysis showed new interactions in bionanocomposites. AFM and SEM anal-yses showed an increased roughness for bionanocomposites but suggested good dispersion of CNF andLCNF in CH matrix. X-ray diffraction confirmed that the degree of crystallinity was increased by additionof CNF/LCNF. The results suggested that the CH-EO film had high antioxidant activity and was more effec-tive against E. coli and B. cereus bacteria than CH-EO CNF and CH-EO-LCNF films, which shows the releasecontrolling effect of nanofibers. Mechanical properties were improved with addition of EO and CNF/LCNF.Incorporation of EO and CNF/LCNF improved water vapor barrier properties of films. In general, uniformdispersion and improving effect of LCNF on properties of CH-EO films was more than CNF.
کلید واژگان :ChitosanBionanocompositeCarum copticum essential oilLignocellulose nanofiberMorphologyPhysical properties
ارزش ریالی : 600000 ریال
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