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
                                            LI, WEILI - Tianjin University Of Science And Technologyitem
                                            Jin, Zhonglinitem
                                            Liu, Linshu
  Submitted to: Journal of Food Protection
                                    Publication Type: Peer Reviewed Journal
                                    Publication Acceptance Date: 8/11/2012
                                    Publication  Date: 12/1/2012
                                    Citation: Li, W., Jin, Z.T., Liu, L.S. 2012. Antimicrobial activity of allyl isothiocyanate used to coat biodegradable composite films as affected by storage and handling conditions. Journal of Food Protection. 75(12):2234-2237.Interpretive Summary: There are public concerns over food safety and environmental pollution. This research was to develop antimicrobial and biodegradable packaging materials used for food packaging while not impact environment. Ally isothiocyanate (AIT) was incorporated into polylactic acid or chitosan biopolymers. The release of AIT effectively inhibited the growth of pathogenic Salmonella. The antimicrobial activity of AIT was not affected by simulated storage and handling conditions. The developed antimicrobial films have poetical applications in food packaging.
                                Technical Abstract: We evaluated the effects of storage and handling conditions on the antimicrobial activity of biodegradable composite films (polylactic acid and sugar beet pulp) coated with allyl isothiocyanate (AIT). Polylactic acid (PLA) and chitosan were incorporated with AIT and coated on one side of the film. The films were treated at different storage conditions (storage time, storage temperature, and atmosphere) and handling conditions (washing, abrasion, and air blowing), and the antimicrobial activity of the films against Salmonella in tryptic soy broth was determined. The films (8.16 uL AIT/ cm2 surface area) significantly (p less than 0.05) inhibited the growth of Salmonella during 24 h incubation at 22C while the populations of Salmonella in controls increased from ca. 4 log CFU/ml to over 8 log CFU/ml, indicating a minimum 4 log CFU/ml reduction as compared with controls. Statistical analyses indicated that storage time, storage temperature, and surface abrasion affected antimicrobial activity of the films significantly (p less than 0.05). However, the difference in microbial reduction between these conditions was less than 0.5 log cycles. Results suggest that the films’ antimicrobial properties are stable under practical storage and handling conditions and these antimicrobial films have potential applications in food packaging.


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