Journal
JOURNAL OF FOOD ENGINEERING
Volume 118, Issue 1, Pages 117-124Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.jfoodeng.2013.03.025
Keywords
Poly(lactic acid); Nano-biocomposites; Cellulose nanocrystals; Silver nanoparticles; Barrier properties; Migration kinetics
Categories
Funding
- National Consortium of Materials Science and Technology (INSTM)
- Spanish Ministry of Science and Technology [MAT2011-28640-C02-01]
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Poly(lactic acid) (PLA)-based high performance nano-biocomposites were prepared to be used in active food packaging. Pristine (CNC) and surfactant modified cellulose nanocrystals (s-CNC) with silver (Ag) nanoparticles were used as the matrix modifiers. Binary and ternary systems were prepared. Morphological investigations revealed the good distribution of silver nanoparticles in PLA ternary systems. The combination of s-CNC and Ag nanoparticles increased the barrier effect of the produced films while the results of overall migration for the PLA nano-biocomposites revealed that none of the samples exceeded the overall migration limit, since results were well below 60 mg kg(-1) of simulant. (C) 2013 Elsevier Ltd. All rights reserved.
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