Fu Min, Liu Hui, Yang Wenbo, Zhang Qiang, Lv Zhenzhen, Nawaz Muhammad, Jiao Zhonggao, Liu Jiechao
Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450009, China.
Zhongyuan Research Center, Chinese Academy of Agricultural Sciences, Xinxiang 453000, China.
Foods. 2024 Nov 21;13(23):3731. doi: 10.3390/foods13233731.
Blueberry is one of the most perishable fruits, and the postharvest supply chain environment temperature has great effects on fruit quality. In order to determine the critical steps referring to non-optimal conditions and the key quality indexes in response to temperature along the cold chain, 15 time-temperature scenarios were conducted simultaneously for the storage of blueberry fruits and 17 quality attributes were determined. The results indicated that different cold chain steps under abusing temperatures significantly affected blueberry qualities. Based on the comprehensive evaluation analysis, storage in farm at 8 °C and a 10 h delay in precooling were found to be the critical steps that had strong impacts on the qualities of blueberries, affecting 33 and 31 total qualities during shelf life, respectively. Furthermore, seven effective indexes, including the sensory scores, weight loss, decay rate, content of titratable acid, malondialdehyde, respiratory rate and antioxidant activities, were confirmed to be the key quality attributes influenced by the cold chain temperature. It is necessary to circulate postharvest blueberry fruits under relatively isothermal and optimum temperatures throughout the cold chain to maintain the preferred quality, especially at the initial stage of the supply chain.
蓝莓是最易腐坏的水果之一，采后供应链环境温度对果实品质有很大影响。为了确定冷链中与非最佳条件相关的关键环节以及响应温度的关键品质指标，对蓝莓果实贮藏同时进行了15种时间-温度情景试验，并测定了17种品质属性。结果表明，在滥用温度下不同的冷链环节显著影响蓝莓品质。基于综合评价分析，发现在8℃农场贮藏以及预冷延迟10小时是对蓝莓品质有强烈影响的关键环节，分别影响货架期内33种和31种总体品质。此外，感官评分、失重、腐烂率、可滴定酸含量、丙二醛、呼吸速率和抗氧化活性这七个有效指标被确认为受冷链温度影响的关键品质属性。有必要在整个冷链中使采后蓝莓果实处于相对等温且最佳的温度下流通，以保持其优良品质，尤其是在供应链的初始阶段。
