Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.14279/14839
Title: Deployment of low-level ozone-enrichment for the preservation of chilled fresh produce
Authors: Tzortzakis, Nikos G. 
Singleton, Ian 
Barnes, Jeremy D. 
Major Field of Science: Agricultural Sciences
Field Category: Environmental Biotechnology;AGRICULTURAL SCIENCES;Agricultural Biotechnology;Other Agricultural Sciences
Keywords: Botrytis cinerea;Fresh produce;Microbial spoliage;Modified atmosphere storage;Ozone;Tomato
Issue Date: 1-Feb-2007
Source: Postharvest Biology and Technology,2007, vol. 43, no. 2, pp. 261-270
Volume: 43
Issue: 2
Start page: 261
End page: 270
Journal: Postharvest Biology and Technology 
Abstract: Tomatoes, strawberries, table grapes and plums were inoculated with Botrytis cinerea (grey mould), transferred to chilled storage (13 °C) and exposed to 'clean air' or low-level ozone-enrichment (0.1 μmol mol-1). Ozone-enrichment resulted in a substantial decline in spore production as well as visible lesion development in all treated fruit. Exposure-response studies performed specifically on tomato fruit (exposed to concentrations ranging between 0.005 and 5.0 μmol mol-1 ozone) revealed lesion development and spore production/viability to be markedly reduced in produce exposed to ozone prior to, or following, infection with B. cinerea; higher concentrations/duration of exposure yielding greater reductions in lesion development and spore production/viability. Impacts on Botrytis colonies grown on Potato Dextrose Agar (PDA) for 5-6 days at 13 °C and 95% relative humidity (RH) revealed less effects than studies on fruit inoculated with the pathogen in vivo. Taken as a whole, the results imply that ozone-induced suppression of pathogen development is due, to some extent, to impacts on fruit-pathogen interactions. This work suggests that ozone may constitute a desirable and effective residue-free alternative to traditional postharvest fungicide practices. Data presented illustrate that optimal ozone treatment regimes are likely to be commodity-specific and require detailed investigation before such practices can be contemplated commercially. © 2006 Elsevier B.V. All rights reserved.
URI: https://hdl.handle.net/20.500.14279/14839
ISSN: 09255214
DOI: 10.1016/j.postharvbio.2006.09.005
Rights: © Elsevier
Type: Article
Affiliation : Institute for Research on the Environment and Sustainability 
Publication Type: Peer Reviewed
Appears in Collections:Άρθρα/Articles

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