A commercial fruit exporter plans to introduce low-concentration ozone gas injection into its long-distance refrigerated shipping containers to prevent mold decay in bananas during transit. Skeptics argue that ozone exposure can accelerate fruit ripening and softening by triggering ethylene production. The exporter claims that using ozone gas will successfully extend the saleable shelf life of the fruit upon arrival at distant ports without causing premature softening. Which of the following, if true, provides the strongest support for the fruit exporter's claim?
- ABananas exposed to low-concentration ozone gas produce significantly higher baseline levels of ethylene than bananas kept in standard refrigerated air.
- At low concentrations, ozone gas rapidly oxidizes and neutralizes ambient ethylene in enclosed spaces before the ethylene can bind to fruit ripening receptors.Answer
- CRetail consumers in major export markets increasingly report a willingness to pay premium prices for fruit preserved without synthetic chemical fungicides.
- DMold decay currently accounts for over forty percent of total fruit losses reported during transoceanic shipping operations.
- ERefrigerated containers equipped with ozone delivery systems require lower electrical power to maintain target internal temperatures.
Answer
The statement showing that ozone gas neutralizes ambient ethylene before it can bind to fruit receptors provides the strongest support for the exporter's claim.
The correct answer provides a chemical mechanism that directly defends the argument against the main objection. The critics argue that ozone causes softening by triggering ethylene. If low concentrations of ozone actually neutralize ambient ethylene before it can affect the fruit, the ozone removes the very agent responsible for premature ripening while still treating mold. This strongly supports the exporter's conclusion.
Step-by-Step Solution
Key Concept
Strengthening Arguments