Development of bioactive fish gelatin/chitosan nanoparticles composite films with antimicrobial properties

被引:296
作者
Hosseini, Seyed Fakhreddin [1 ]
Rezaei, Masoud [1 ]
Zandi, Mojgan [2 ]
Farahmandghavi, Farhid [3 ]
机构
[1] Tarbiat Modares Univ, Fac Marine Sci, Dept Seafood Proc, Noor, Iran
[2] Iran Polymer & Petrochem Inst, Dept Biomat, Tehran, Iran
[3] Iran Polymer & Petrochem Inst, Dept Novel Drug Delivery Syst, Tehran, Iran
基金
美国国家科学基金会;
关键词
Bioactive packaging; Bio-nanocomposite; Fish gelatin; Chitosan nanoparticles; Origanum vulgare L. essential oil; Antimicrobial properties; ESSENTIAL OILS; EDIBLE FILMS; ANTIBACTERIAL PROPERTIES; CASSAVA STARCH; GELATIN FILM; ACTIVE FILMS; CHITOSAN; CARVACROL; BARRIER; WATER;
D O I
10.1016/j.foodchem.2015.09.004
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
The objective of this work was to develop active bio-based nanocomposite films from fish gelatin (FG) and chitosan nanoparticles (CSNPs) incorporated with Origanum vulgare L. essential oil (OEO). CSNPs were obtained by ionic gelation of chitosan with sodium tripolyphosphate, which presented a spherical morphology with size range of 40-80 nm. Remarkable differences in the surface morphology were observed between the control and bioactive nanocomposite films as revealed by SEM and AFM images. FTIR results confirmed that an interaction between polymer matrix and essential oil had occurred, as shown by an increase in the amplitude of peaks at wavenumbers 1242 cm(-1) and 1451 cm(-1). Meanwhile, XRD peaks of OEO-containing films were more intense, indicating that the introduction of essential oil into the film matrix induces an increase in crystallinity. TGA analysis demonstrated that the addition of OEO had no impact on thermal stability of the films. Inclusion of OEO in the film matrix resulted in less resistant and more flexible films, with a decrease in water vapor permeability (WVP). The FG/CSNPs bioactive films exhibited distinctive antimicrobial activity against four test food pathogens, namely Staphylococcus aureus, Listeria monocytogenes, Salmonella enteritidis and Escherichia coli. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码:1266 / 1274
页数:9
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