Akademik Veri Yönetim Sistemi
Proceedings of the 12th International Conference on Controlled Atmosphere and Fumigation in Stored Products, Winnipeg, Kanada, 18 - 23 Ağustos 2024, ss.119-125
Türkiye is the world's largest producer and exporter of dried fruits and nuts, such as figs, apricots, raisins, and hazelnuts, with a total annual export revenue of USD 1.5 billion. The control of insect pests in dried fruits and nuts relies heavily on the use of toxic fumigants. Increasing concerns about the adverse effects of pesticides on human, animal, and environmental health, as well as the need for shorter fumigation periods, are the driving forces for the development of alternative methods. Therefore, this paper focuses on high-pressure CO2 treatments as an alternative to methyl bromide (MB) in Quarantine and Pre-shipment (QPS) applications, using Carpophilus hemipterus (L.) (Coleoptera: Nitidulidae), a major pest of dried figs, as the model organism.
All the experiments were conducted in a high-pressure chamber of 1 L volume under the constant temperature of 25°C and at 0.5 MPa (5 bar) pressures. The LT90 values for eggs, larvae, pupae, and adults were calculated as 6, 20, 6, and 9 h, respectively. At the longest exposure period of 21 h, statistically significant differences were found in terms of C* (brightness) and L* (color) values of the figs, without affecting the market value of the product negatively.
Keywords: Dried fruits and nuts, MB alternative, Dried fruit beetle, Carpophilus hemipterus, Life stages, LT50 values, High-pressure CO2