Liu Jingyun, Lin Yifen, Lin Hetong, Lin Mengshi, Fan Zhongqi
Institute of Postharvest Technology of Agricultural Products, College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China.
Key Laboratory of Postharvest Biology of Subtropical Special Agricultural Products, Fujian Province University, Fuzhou, Fujian 350002, China.
Food Chem X. 2021 Nov 17;12:100167. doi: 10.1016/j.fochx.2021.100167. eCollection 2021 Dec 30.
The impacts of reactive oxygen species (ROS) scavenger ascorbic acid (AsA) treatment on the storability and quality attributes of 'Fuyan' longan fruit were explored. Compared to control samples, the treatment of 4 g L AsA solution clearly reduced fruit weight loss, indexes of fruit disease and pericarp browning, retained higher percentage of commercially acceptable fruit, higher values of chromaticity chromaticity , and chromaticity , delayed pigment degradation in longan pericarp, and retarded the decreases of nutritive ingredients in longan pulp. When stored for 6 d, vitamin C (0.08 g kg), sucrose (20.70 g kg), total soluble sugar (56.32 g kg), and total soluble solids (12.4%) in AsA-treated fruit displayed the clearly higher contents than those in control samples. These data suggested that the treatment of exogenous ROS scavenger AsA could effectively enhance the quality attributes and storability of postharvest longan fruit, thereby lengthen their postharvest shelf-life.
探讨了活性氧（ROS）清除剂抗坏血酸（AsA）处理对‘福眼’龙眼果实耐贮性和品质特性的影响。与对照样品相比，4 g/L AsA溶液处理显著降低了果实失重、果实病害指数和果皮褐变指数，保持了较高比例的商业可接受果实、较高的色度值、和，延缓了龙眼果皮色素降解，并延缓了龙眼果肉营养成分的下降。贮藏6 d时，AsA处理果实中的维生素C（0.08 g/kg）、蔗糖（20.70 g/kg）、总可溶性糖（56.32 g/kg）和总可溶性固形物（12.4%）含量明显高于对照样品。这些数据表明，外源ROS清除剂AsA处理可有效提高采后龙眼果实的品质特性和耐贮性，从而延长其采后货架期。
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