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
 Food Safety and Intervention Technologies Research: 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 Food Safety and Intervention Technologies Research 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
                                            ABDULMALIK, TAKIYAH - Virginia Polytechnic Institution & State Universityitem
                                            LEVY, JASON - Virginia Polytechnic Institution & State Universityitem
                                            BOYER, RENEE - Virginia Polytechnic Institution & State Universityitem
                                            Gurtler, Joshuaitem
                                            O'KEEFE, SEAN - Virginia Polytechnic Institution & State Universityitem
                                            WILLIAMS, ROB - Virginia Polytechnic Institution & State University
  Submitted to: Meeting Abstract
                                    Publication Type: Abstract Only
                                    Publication Acceptance Date: 3/15/2013
                                    Publication  Date: 7/28/2013
                                    Citation: Abdulmalik, T., Levy, J., Boyer, R.R., Gurtler, J., O'Keefe, S.F., Williams, R.C. 2013. Inactivation of Listeria Monocytogenes and Salmonella Typhimurium in apple juice using combinations of cinnamaldehyde, eugenol and trans-2-hexenal. Meeting Abstract. IAFP Annual Meeting, Charlotte, NC., July 28-31, 2013.,Volume 1, Page 1.Interpretive Summary:
                                Technical Abstract: Plant-derived essential oil compounds, within the past decade, have gained attention as effective antimicrobials.  Some essential oils possess antimicrobial properties effective against foodborne pathogens; however, their use within the food industry is limited by negative organoleptic effects and limited solubility.  Using these essential oils in combination with other antimicrobials, naturally occurring within foods, may result in lower effective concentrations.  The purpose of this study was to evaluate the antimicrobial activity of two plant essential oil compounds (trans-cinnamaldehyde and eugenol) alone and in combination with trans-2-hexenal (a naturally-occurring apple flavorant) to inactivate Salmonella Typhimurium and Listeria monocytogenes in commercially-processed apple juice.  Apple juice samples containing 0.025, 0.050, 0.075 and 0.125% of each individual compound or dual-combinations containing 0.025% of each test compound were inoculated with 7-8 log CFU/ml of S.Typhimurium or L. monocytogenes and stored at 4 or 25 deg C.  Bacterial counts were determined after 0, 1, 3, and 7 days of storage on tryptic soy agar.  Treatments with 0.050% of trans-cinnamaldehyde, eugenol or trans-2-hexenal, alone, resulted in 5 log CFU/ml reductions of both pathogens within one day at both temperatures.  The only exception was trans-2-hexenal, which reduced L. monocytogenes by 4 log CFU/ml after one day at 4 deg C.  Both antimicrobial combinations (viz., 0.025% trans-2-hexenal combined with either 0.025% eugenol or 0.025% trans-cinnamaldehyde), however, resulted in greater than 7 log CFU/ml inactivation of S. Typhimurium and L. monocytogenes, following one day at 25 deg C.  Both treatments were less effective at 4 deg C, with only 4-5 log CFU/ml inactivation of both pathogens.  Adding combinations of trans-2-hexenal with trans-cinnamaldehyde and eugenol to apple juice resulted in at least a 5 log reduction in populations of S. Typhimurium and L. monocytogenes when held at 25 deg C.


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