23 10 月

Effect of cutting styles on quality and antioxidant activity in fresh-cut pitaya fruit

2024 年 10 月 23 日
採後處理, 期刊論文
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作者： Li, Xiaoan ; Long, Qinghong ; Gao, Fan ; Han, Cong ; Jin, Peng ; Zheng, Yonghua
刊名： Postharvest biology and technology
期刊所屬國別：
出版年： 201702
關鍵字： Ammonia ; Antioxidants ; Biosynthesis ; Catalase ; Fruit ; Glutathione ; Glutathione Reductase ; Phenols ; Phenylalanine ; Quality ; Reactive Oxygen Species ; Storage ; Superoxide dismutase ; Vitamin C
摘要： "•Cutting styles did not have adverse effect on the organoleptic quality.•Cutting significantly enhanced TP content, antioxidant enzyme activity and AOX.•The enhancement of TP content and AOX increased with cutting wound intensity. The effect of different cutting styles on the quality and antioxidant activity of pitaya fruit during 4 d of storage at 15°C was investigated. Pitaya fruit was cut into slice, half-slice and quarter-slice, all in 1cm of thickness, with corresponding wounding intensity (A/W) of 2.0, 2.9 and 3.7cm2g−1, respectively. showed that cutting styles had little influence on fruit quality parameters such as vitamin C, soluble solids, titratable acidity and flesh color. While total phenolic content, antioxidant activity, and phenylalanine ammonia-lyase activity increased significantly with cutting wounding intensity at the first 2 d of storage. In addition, fresh-cut processing induced the reactive oxygen species (ROS) generation and enhanced the activity of antioxidant enzymes including catalase, superoxide dismutase and glutathione reductase at the initial storage time. These results demonstrated that cutting styles didn’t have much adverse effect on the organoleptic quality, but significantly induced the biosynthesis of phenolics and improved the antioxidant activity of fresh-cut pitaya fruit. Moreover, ROS may act as signaling molecules in the accumulation of phenolics in fresh-cut pitaya fruit."
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