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Impact of atmospheric ozone-enrichment on quality-related attributes of tomato fruit


, : Impact of atmospheric ozone-enrichment on quality-related attributes of tomato fruit. Postharvest biology and technology 45(3): 317-325

Tomato fruit (Lycopersicon esculentum L. cv. Carousel) were exposed to ozone concentrations ranging between 0.005 (controls) and 1.0 omol mol-1 at 13 pC and 95% RH. Quality-related attributes and organoleptic characteristics were examined during and following ozone treatment. Levels of soluble sugars (glucose, fructose) were maintained in ozone-treated fruit following transfer to 'clean air', and a transient increase in o-carotene, lutein and lycopene content was observed in ozone-treated fruit, though the effect was not sustained. Ozone-enrichment also maintained fruit firmness in comparison with fruit stored in 'clean air'. Ozone-treatment did not affect fruit weight loss, antioxidant status, CO2/H2O exchange, ethylene production or organic acid, vitamin C (pulp and seed) and total phenolic content. Panel trials (employing choice tests, based on both appearance and sensory evaluation) revealed an overwhelming preference for fruit subject to low-level ozone-enrichment (0.15 omol mol-1), with the effect persisting following packaging.

US$19.90

DOI: 10.1016/j.postharvbio.2007.03.004


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