TY - JOUR
T1 - Effect of lignin on water vapor barrier, mechanical, and structural properties of agar/lignin composite films
AU - Shankar, Shiv
AU - Reddy, Jeevan Prasad
AU - Rhim, Jong Whan
N1 - Publisher Copyright:
© 2015 Elsevier B.V.
PY - 2015
Y1 - 2015
N2 - Biodegradable composite films were prepared using two renewable resources based biopolymers, agar and lignin alkali. The lignin was used as a reinforcing material and agar as a biopolymer matrix. The effect of lignin concentration (1, 3, 5, and 10. wt%) on the performance of the composite films was studied. In addition, the mechanical, water vapor barrier, UV light barrier properties, FE-SEM, and TGA of the films were analyzed. The agar/lignin films exhibited higher mechanical and UV barrier properties along with lower water vapor permeability compared to the neat agar film. The FTIR and SEM results showed the compatibility of lignin with agar polymer. The swelling ratio and moisture content of agar/lignin composite films were decreased with increase in lignin content. The thermostability and char content of agar/lignin composite films increased with increased lignin content. The results suggested that agar/lignin films have a potential to be used as a UV barrier food packaging material for maintaining food safety and extending the shelf-life of the packaged food.
AB - Biodegradable composite films were prepared using two renewable resources based biopolymers, agar and lignin alkali. The lignin was used as a reinforcing material and agar as a biopolymer matrix. The effect of lignin concentration (1, 3, 5, and 10. wt%) on the performance of the composite films was studied. In addition, the mechanical, water vapor barrier, UV light barrier properties, FE-SEM, and TGA of the films were analyzed. The agar/lignin films exhibited higher mechanical and UV barrier properties along with lower water vapor permeability compared to the neat agar film. The FTIR and SEM results showed the compatibility of lignin with agar polymer. The swelling ratio and moisture content of agar/lignin composite films were decreased with increase in lignin content. The thermostability and char content of agar/lignin composite films increased with increased lignin content. The results suggested that agar/lignin films have a potential to be used as a UV barrier food packaging material for maintaining food safety and extending the shelf-life of the packaged food.
KW - Agar
KW - Biocomposite films
KW - Lignin
UR - http://www.scopus.com/inward/record.url?scp=84955466731&partnerID=8YFLogxK
U2 - 10.1016/j.ijbiomac.2015.08.015
DO - 10.1016/j.ijbiomac.2015.08.015
M3 - Article
C2 - 26271435
AN - SCOPUS:84955466731
SN - 0141-8130
VL - 81
SP - 267
EP - 273
JO - International Journal of Biological Macromolecules
JF - International Journal of Biological Macromolecules
ER -