روزه داری و سلامت- Journal of Fasting And Health, Volume (7), No (2), Year (2019-6) , Pages (103-109)

Title : ( Inhibitory Effect of Nano-gel/emulsion of Chitosan Coating Incorporated with Ziziphora Clinopodioides Essential Oil and Nisin on Escherichia Coli O157:H7 Inoculated in Beef at Cold Storage Condition )

Authors: Asghar Azizian , Saeid Khanzadi , Mohammad Hashemi , Mohammad Azizzadeh ,

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Abstract

Introduction: This study was conducted to evaluate the influence of chitosan Nano-gel/emulsion coating functionalized by Ziziphora clinopodioides essential oil (ZCEO) and nisin on growth inhibition of Escherichia coli O157: H7 inoculated in beef samples during 16 days in cold storage condition (4˚C). Methods: Beef sample was divided into six groups after inoculation of E. coli O157:H7. Treatments including control (no coating), chitosan 2%, sonicated chitosan 2%, Nano-emulsion of chitosan coating containing ZCEO (0.5%), Nano-gel of chitosan coating containing nisin (200 IU/g), Nano-emulsion of chitosan coating containing ZCEO (0.5%) and nisin (200 IU/g) were stored at refrigeration temperature and bacterial count were performed on days: 0, 1, 2, 4, 8, 12 and 16. Data were analyzed using repeated measure ANOVA and Bonferroni post hoc tests. Results: Result indicated a significant reduction in E. coli O157:H7 count in all treatments when compared to control group and the highest inhibitory activity was observed in chitosan Nano-emulsion coating containing ZCEO (0.5%) and nisin (200 IU/g). Conclusion: Accordingly, it is suggested that chitosan Nano-emulsion coating with ZCEO and nisin practically be applied in beef to increase its safety against pathogenic bacteria especially E. coli O157: H7.

Keywords

Chitosan Functional coating Nano technology Beef Escherichia coli O157:H7
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@article{paperid:1074965,
author = {Azizian, Asghar and Khanzadi, Saeid and Mohammad Hashemi and Azizzadeh, Mohammad},
title = {Inhibitory Effect of Nano-gel/emulsion of Chitosan Coating Incorporated with Ziziphora Clinopodioides Essential Oil and Nisin on Escherichia Coli O157:H7 Inoculated in Beef at Cold Storage Condition},
journal = {روزه داری و سلامت- Journal of Fasting And Health},
year = {2019},
volume = {7},
number = {2},
month = {June},
issn = {2345-2587},
pages = {103--109},
numpages = {6},
keywords = {Chitosan Functional coating Nano technology Beef Escherichia coli O157:H7},
}

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%0 Journal Article
%T Inhibitory Effect of Nano-gel/emulsion of Chitosan Coating Incorporated with Ziziphora Clinopodioides Essential Oil and Nisin on Escherichia Coli O157:H7 Inoculated in Beef at Cold Storage Condition
%A Azizian, Asghar
%A Khanzadi, Saeid
%A Mohammad Hashemi
%A Azizzadeh, Mohammad
%J روزه داری و سلامت- Journal of Fasting And Health
%@ 2345-2587
%D 2019

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