Antimicrobial pullulan derivative prepared by grafting with 3-aminopropyltrimethoxysilane: Characterization and ability to form transparent films
authors Fernandes, SCM; Sadocco, P; Causio, J; Silvestre, AJD; Mondragon, I; Freire, CSR
nationality International
journal FOOD HYDROCOLLOIDS
author keywords Pullulan; Silane derivative; Antibacterial activity; Transparent films
keywords ANTIBACTERIAL ACTIVITY; CELLULOSIC FIBERS; SILVER NANOPARTICLES; EDIBLE FILMS; CHITOSAN; BACTERIAL; POLYMERS; COATINGS
abstract In the present work, we propose a simple and straightforward procedure to prepare antibacterial transparent pullulan films by functionalization of pullulan powder with 3-aminopropyltrimethoxysilane. The introduction of active aminopropyl groups into the pullulan polymeric backbone imparts antimicrobial activity against Gram-positive (Staphylococcus aureus) and Gram-negative bacteria (Escherichia coli). In addition, the antimicrobial pullulan maintains its filmogenic ability and the films showed reasonable mechanical properties (Young modulus of 1.8 GPa and tensile strength of 21 MPa) and improved thermal stability (increment of 10 degrees C on the maximum degradation temperature), opening the possibility for application in functional food packaging films and coatings. (C) 2013 Elsevier Ltd. All rights reserved.
publisher ELSEVIER SCI LTD
issn 0268-005X
year published 2014
volume 35
beginning page 247
ending page 252
digital object identifier (doi) 10.1016/j.foodhyd.2013.05.014
web of science category Chemistry, Applied; Food Science & Technology
subject category Chemistry; Food Science & Technology
unique article identifier WOS:000326270000029
  ciceco authors
  impact metrics
journal analysis (jcr 2017):
journal impact factor 5.089
5 year journal impact factor 5.501
category normalized journal impact factor percentile 95.502
dimensions (citation analysis):
altmetrics (social interaction):



 


Sponsors

1suponsers_list_ciceco.jpg