Jump to main content
Jump to site search
SCHEDULED MAINTENANCE Close the message box

Maintenance work is planned for Monday 16 August 2021 from 07:00 to 23:59 (BST).

Website performance may be temporarily affected and you may not be able to access some PDFs or images. If this does happen, refreshing your web browser should resolve the issue. We apologise for any inconvenience this might cause and thank you for your patience.


Issue 6, 2017

Physicochemical and antimicrobial properties of ε-polylysine/carboxymethyl chitosan polyelectrolyte complexes and their effect against spoilage microorganisms in raw pork

Author affiliations

Abstract

This study investigated the properties of polyelectrolyte complexes (PECs) fabricated by using ε-polylysine (EPL) and N,O-carboxymethyl chitosan (NOCC) and their potential applications in raw pork. The phase behaviors of PECs in aqueous solutions are characterized by the ζ-potential, mean radius and turbidimetric measurements. Stable colloidal and soluble PEC systems can be fabricated by carefully adjusting the mass ratio of NOCC to EPL. The minimum inhibitory concentration (MIC) assay showed that the colloidal and soluble PECs could maintain the antimicrobial activity of EPL in a laboratory medium. The antimicrobial effectiveness of coatings incorporating three PECs against spoilage microorganisms of raw pork under refrigerated conditions (4 °C) was evaluated. Microbial analysis demonstrated that the bacterial counts were significantly (P < 0.05) lower in sprayed samples with tested PECs containing 0.1% (v/v) EPL, especially for PECs with the mass ratio (NOCC/EPL) at 3 than that of the control sample throughout the storage period, while there were not significantly different counts (P > 0.05) among all samples in the case of molds and yeasts.

Graphical abstract: Physicochemical and antimicrobial properties of ε-polylysine/carboxymethyl chitosan polyelectrolyte complexes and their effect against spoilage microorganisms in raw pork

Article information


Submitted
20 Feb 2017
Accepted
26 Apr 2017
First published
26 Apr 2017

Food Funct., 2017,8, 2243-2248
Article type
Paper

Physicochemical and antimicrobial properties of ε-polylysine/carboxymethyl chitosan polyelectrolyte complexes and their effect against spoilage microorganisms in raw pork

L. Guo, Y. Meng and S. Fang, Food Funct., 2017, 8, 2243 DOI: 10.1039/C7FO00279C

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.


Social activity

Search articles by author

Spotlight

Advertisements