Zhang Shuang, Wu Zhengbao, Liu Lingling, Wang Luyin, Li Xihong, Ban Zhaojun, Chen Cunkun, Zhu Yi
Zhejiang Provincial Key Laboratory of Chemical and Biological Processing Technology of Farm Products, School of Biological and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou 310023, China.
Economic Forest Research Institute, Xinjiang Academy of Forestry Sciences, Urumqi 830000, China.
Food Res Int. 2023 Feb;164:112388. doi: 10.1016/j.foodres.2022.112388. Epub 2022 Dec 27.
Jujube fruit (Ziziphus jujuba Mill.) is extremely susceptible to mechanical injury by extrusion and collision during storage, transportation and processing. In this study, we examined the morphology and endogenous metabolism of jujubes at three developmental stages after applying partial compression (PC) to mimic mechanical injury. Generally, PC did not affect the total soluble solids content, but increased the acidity and decreased the amount of phenolics in the jujube fruit. Targeted metabolomics analysis further confirmed that acid and phenolics content were differentially altered in response to PC. To our knowledge, this is the first study to characterize metabolic variations in ready-to-eat fruit that occur in response to physical damage. The results will provide insight into the understanding the consequences of mechanical injury on fruit nutrition and health benefits.
冬枣（枣属酸枣）在储存、运输和加工过程中极易受到挤压和碰撞造成的机械损伤。在本研究中，我们对冬枣进行了部分压缩（PC）处理以模拟机械损伤，研究了三个发育阶段冬枣的形态和内源代谢。总体而言，PC处理并未影响总可溶性固形物含量，但增加了冬枣果实的酸度并降低了酚类物质的含量。靶向代谢组学分析进一步证实，酸和酚类物质的含量因PC处理而发生了差异变化。据我们所知，这是第一项描述即食水果因物理损伤而发生的代谢变化的研究。研究结果将有助于深入了解机械损伤对水果营养和健康益处的影响。
