These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: In situ self-assembly chitosan/ε-polylysine bionanocomposite film with enhanced antimicrobial properties for food packaging.
    Author: Wu C, Sun J, Lu Y, Wu T, Pang J, Hu Y.
    Journal: Int J Biol Macromol; 2019 Jul 01; 132():385-392. PubMed ID: 30904525.
    Abstract:
    A set of chitosan/ε-polylysine (ε-PL) bionanocomposite films were prepared by a simple in situ self-assembly technique using sodium tripolyphosphate (TPP) as cross-linking agent. The physical, mechanical, structural, and antimicrobial properties of these films were investigated. Fourier infrared spectroscopy and X-ray diffraction showed that the introduction of TPP promoted the formation of hydrogen bonds and electrostatic interactions among functional groups of chitosan or ε-PL, which improved the tensile strength and decreased the water solubility, water vapor permeability and surface wettability of films. On the other hand, the incorporation of ε-PL weakened the bionanocomposite film' structure and integrity, resulting in a decrease trend of films' mechanical and barrier properties. More importantly, the bionanocomposite films exhibited excellent antimicrobial efficacy against E. coli and S. aureus by the increasing ratio of ε-PL. And ε-PL presented a sustained release from the films, which was closely related to TPP concentration. Results of this study suggested that chitosan/ε-PL films could be used as antimicrobial bio-material and have great potential in food industry.
    [Abstract] [Full Text] [Related] [New Search]