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Guar gum benzoate nanoparticle reinforced gelatin films for enhanced thermal insulation, mechanical and antimicrobial properties
S KUNDU, A DAS, A BASU, A MUKHERJEE,
Published in Elsevier Ltd
2017
PMID: 28522007
Volume: 170
   
Pages: 89 - 98
Abstract

This work relates to guar gum benzoate self assembly nanoparticles synthesis and nano composite films development with gelatin. Guar gum benzoate was synthesized in a Hofmeister cation guided homogeneous phase reaction. Self assembly polysaccharide nanoparticles were prepared in solvent displacement technique. Electron microscopy and DLS study confirmed uniform quasi spherical nanoparticles with ζ-potential − 28.7 mV. Nanocomposite films were further developed in gelatin matrix. The film capacity augmenting due to nanoparticles incorporation was noteworthy. Superior barrier properties, reinforcing and thermal insulation effects were observed in films dispersed with 20% w/w nanoparticles. Detailed FTIR studies and thermal analysis confirmed nanoparticles interactions in the film matrix. The nanocomposite film water vapour permeability was at 0.75 g mm −1 kPa −1 h −1 , thermal conductivity 0.39 W m −1 K −1 and the tensile strength were recorded at 3.87 MPa. The final film expressed excellent antimicrobial properties against water born gram negative and gram positive bacteria. © 2017 Elsevier Ltd

About the journal
JournalData powered by TypesetCarbohydrate Polymers
PublisherData powered by TypesetElsevier Ltd
ISSN0144-8617