Estación Experimental de Aula Dei-CSIC. Avda Montañana 1005, 50059-Zaragoza, Spain.
J Sci Food Agric. 2010 Feb;90(3):536-40. doi: 10.1002/jsfa.3837.
The effect of subjecting 'Golden Reinders' apples to a low O(2) pre-treatment (LOT; 1-2% O(2)) was evaluated as a strategy to decrease the rate of bitter pit (BP) incidence after standard cold storage (ST). Immediately after harvest, apples were stored for 10 days at 20 degrees C under low O(2). Thereafter, apples were cold-stored (0-4 degrees C) for 4 months and changes were monitored in terms of BP incidence, fruit quality traits and mineral element concentrations.
After 4 months cold storage, LOT apples presented a 2.6-fold decrease in the rate of BP incidence (14%) versus the values obtained for standard cold-stored fruits (37% BP incidence). LOT increased flesh firmness, total soluble solids and titratable acidity as compared to the quality traits determined for cold-stored fruits. Lower cortex Ca and Mg concentrations as compared to ST apples were determined in association with LOT, 2 months after cold storage.
Application of a LOT prior to cold storage may be a promising strategy to reduce the incidence of BP and preserve fruit quality, which should be further investigated.
将“Golden Reinders”苹果进行低 O(2)预处理（LOT；1-2% O(2))，以评估其作为降低标准冷藏（ST）后苦痘病（BP）发生率的策略的效果。苹果收获后，立即在 20°C 下低 O(2)条件下贮藏 10 天。此后，将苹果在 0-4°C 下冷藏 4 个月，并监测 BP 发生率、果实品质特性和矿物质元素浓度的变化。
经过 4 个月的冷藏，LOT 苹果的 BP 发生率（14%）比标准冷藏果实（37% BP 发生率）降低了 2.6 倍。与冷藏果实相比，LOT 增加了果肉硬度、总可溶性固体和可滴定酸度。与 ST 苹果相比，在冷藏 2 个月后，LOT 苹果的皮层 Ca 和 Mg 浓度较低。
冷藏前进行 LOT 处理可能是降低 BP 发生率和保持果实品质的一种有前途的策略，值得进一步研究。
