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Evaluation of polyamide composite casings with silver–zinc crystals for sausages packaging

Paper ID Volume ID Publish Year Pages File Format Full-Text
19871 43138 2014 7 PDF Available
Title
Evaluation of polyamide composite casings with silver–zinc crystals for sausages packaging
Abstract

This study assessed the manufacture of polyamide (PA-6) composite casings based on silver–zinc crystals with potential application in sausages packaging. The antimicrobial activity of silver–zinc crystals was estimated by the minimum inhibitory concentration method for microbial strains related with the spoilage of meat products. PA-6 films were prepared as a multilayer film by bubble film sheet co-extrusion (130 °C–14,000 kPa), identified according to the layers distribution as control and active casings by adding 3% (w/w) of silver–zinc crystals to obtain a film with good barrier and mechanical properties. DSC, DMTA and SEM were also evaluated for determining the effects of microparticles in the polymeric matrix. Silver–zinc crystals inhibited the growth of various microbial strains, being Salmonella typhimurium ATCC 14028 which presented greatest resistance. Silver–zinc crystals were well impregnated in PA-6 films. Inclusion of silver–zinc crystals did not modify the mechanical properties and decreased the oxygen transmission rate of the films.

Keywords
Active packaging; Antimicrobial packaging; Silver–zinc crystals; Polyamide films
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Evaluation of polyamide composite casings with silver–zinc crystals for sausages packaging
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Publisher
Database: Elsevier - ScienceDirect
Journal: Food Packaging and Shelf Life - Volume 1, Issue 1, March 2014, Pages 3–9
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us