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
 Tropical Crop and Commodity Protection Research: Hilo, HI
 close



    Research

                    Research Projects
                                    Publications
                                    Collaborations
                                    News
                People

                    Staff Listing
                                    Careers


        


                    Scientist Pages
                        Acebes-Doria, Angelita
                                    Cha, Dong
                                    Follett, Peter
                                    Johnson, Melissa
                                    Liang, Peishih
                                    Manoukis, Nicholas
                                    Siderhurst, Matthew
                                    Sun, XiuxiuSearch small
                    Search
            
            ARS Home
                                About ARS
                                Contact Us




ARS Home Pacific West Area Hilo, Hawaii Daniel K. Inouye U.S. Pacific Basin Agricultural Research Center Tropical Crop and Commodity Protection 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
                                            Wall, Marisaitem
                                            KHAN, S.A. - BANGLADESH ATOMIC ENERGY
  Submitted to: HortScience
                                    Publication Type: Peer Reviewed Journal
                                    Publication Acceptance Date: 8/20/2008
                                    Publication  Date: 12/1/2008
                                    Citation: Wall, M.M., Khan, S. 2008. Postharvest quality of dragon fruit (Hylocereus spp.) after x-ray irradiation quarantine treatment. HortScience. 43(7):2115-2119.Interpretive Summary: The quality and composition of dragon fruit, a high-value, exotic tropical fruit was determined after low dose
irradiation to establish the limits of fruit tolerance to this quarantine treatment. Quality was maintained following irradiation doses up to 800 Gy. This research supports a USDA, APHIS rule allowing the export of irradiated dragon fruit from Hawaii. Exporters can develop markets for Hawaii's dragon fruit with confidence that fruit quality will not be compromised by irradiation treatment at a maximum dose of 800 Gy.
                                Technical Abstract: The quality of three dragon fruit clones (Hylocereus sp.) was determined following x-ray irradiation for disinfestation of quarantine pests. Fruit were treated with irradiation doses of 0, 200, 400, 600, or 800 Gy and stored for 12 days at 10 °C. Irradiation did not affect soluble solids content, titratable acidity, or fructose concentrations. Glucose, sucrose, and total sugar concentrations decreased linearly as dose increased. Minimal softening occurred in the outer flesh layers for fruit treated with 400 or 600 Gy irradiation. Surface color, peel injury, and bract appearance differed among the three clones with irradiation stress, but in all cases visible changes were minor. Fruit decay was absent or minimal, and disease ratings were not affected by irradiation. Irradiation treatment of dragon fruit at doses = 800 Gy would ensure visual and compositional quality while providing quarantine security.


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