Thermal Death Kinetics: Importance in Development of Heat-Based Quarantine Treatments
Quarantine treatments against tephritid fruit flies in fresh fruits and vegetable are necessary to insure that potentially damaging pest species do not enter countries where the pests do not exist. Countries as well as many states and municipalities also may impose quarantine restrictions limiting movement of commodities from one area to another. Such restrictions can have potentially severe economic impacts. One method of alleviating this problem is to develop postharvest treatments on the commodity which would insure that pest species would not survive within the host fruits. However the many similarities between plants and animals makes development of treatments which kill the pest but do not damage the fruits difficult. In the past, chemical means such as insecticidal dips and fumigants were widely used, however present concern regarding residue levels in the fruit, food safety and the environment has resulted in researchers taking a second look at non-chemical means. Although not new, physical treatments such as heat, cold and atmosphere are now widely used as a quarantine treatment for many fruits.
KeywordsPostharvest Treatment Infested Fruit Host Fruit Thermal Death Ethylene Dibromide
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