U.S. flagAn official website of the United States government
                    Here's how you know **Official websites use .gov**
                            
                            A **.gov** website belongs to an official government organization in the United States.
 **Secure .gov websites use HTTPS**
                            
                            A **lock** (                            
                              A locked padlock                                                      
                            
                            ) or **https://** means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.


Menu Agricultural Research Service
						
                    U.S. DEPARTMENT OF AGRICULTURE
 Microbial and Chemical Food Safety: Wyndmoor, PA
 close



    Research

                    Research Projects
                                    Publications
                                    Collaborations
                                    News
                People

                    Staff Listing
                                    Careers


        


                    About ERRC
                        Greetings from the Director
                                    Directions/Lodging
                                    History and Accomplishments
                    Our Work
                        Biomass Pyrolysis Research
                                    IPMP 2013
                                    IPMP Dynamic Prediction
                                    IPMP Global Fit
                                    Pathogen Modeling Program (PMP)
                                    Predictive Microbiology Information Portal (PMIP)
                                    PoultryFARMSearch small
                    Search
            
            ARS Home
                                About ARS
                                Contact Us




ARS Home Northeast Area Wyndmoor, Pennsylvania Eastern Regional Research Center Microbial and Chemical Food Safety Research Publications at this Location





- ARS National Programs
- Search for a scientific manuscript
- Search for a research project
- ARS Software
- Programs and Projects
- Collaborations
- Subjects of Investigation
- Publications

Title:   Author  item
                                            Jin, Zhonglinitem
                                            Gurtler, Joshuaitem
                                            LI, SIQUAN - Michael Foods, Inc
  Submitted to: Journal of Food Protection
                                    Publication Type: Peer Reviewed Journal
                                    Publication Acceptance Date: 12/19/2012
                                    Publication  Date: 5/8/2013
                                    Citation: Jin, Z.T., Gurtler, J., Li, S. 2013. Development of antimicrobial coatings for improving the microbiological safety and quality of shell eggs. Journal of Food Protection. 76(5)779-785.Interpretive Summary: Eggs and egg products are the single class of foods most frequently implicated in Salmonella outbreaks and recalls. Antimicrobial coatings to decontaminate and prevent cross-contamination of shell eggs were developed in this study. Natural antimicrobials in biopolymers (polylactic acid and chitosan) coating solutions reduced Salmonella spp. on egg shells up to 99.999%, and no growth of Salmonella was observed through the end of 28 days at 4C. Coated eggs had less weight loss than non-coated eggs during 12 weeks of storage at 7C or 4C. This study demonstrates an alternative and effective intervention technology for decontaminating shell eggs.
                                Technical Abstract: This study was conducted to develop antimicrobial coatings to decontaminate and prevent cross- contamination of shell eggs. Egg shells were inoculated with nalidixic acid resistant Salmonella enterica Enteritidis strains OB030832, OB040159, and C405, and then treated with antimicrobial coatings. Polylactic acid (PLA) served as a non-edible polymer and chitosan served as an edible polymer to carry natural antimicrobials including nisin, allyl isothiocyanate (AIT), lauric arginate ester (LAE) and organic acids. Increase of AIT concentration or addition of nisin to AIT in PLA or chitosan coating solutions resulted in greater reduction of Salmonella. Chitosan coatings with 0.1, 0.5 and 1% of LAE reduced Salmonella by 1.7, 2.5, and 5.2 log CFU/cm2, respectively. Shell eggs treated with 1 and 0.5% LAE in chitosan coatings had non-detectable Salmonella cells (less than 0.5 log CFU/cm) after 3 and 7 days stored at 7C, respectively, and no outgrowth was observed through the end of 28 days. In addition, coating treatments significantly reduced the weight loss of shell eggs during 12 weeks of storage at 7C or 4C. This study demonstrates an alternative and effective intervention technology for decontaminating shell eggs and provides an alternative approach to reduce possible recalls and outbreaks associated with pathogen contamination on shell eggs and in egg products.


Return to top


Connect with ARS Sign up


ARS Home
                            USDA.gov
                            Plain Writing
                            Policies & Links
                            Civil Rights Statements
                            FOIA
                            Accessibility Statement
                            Privacy Policy
                            Non-Discrimination Statement
                            Quality of Information
                            USA.gov
                            WhiteHouse.gov