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Postharvest biology and technology v.126, 2017년, pp.1 - 14   SCI SCIE SCOPUS
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Postharvest hot air and hot water treatments affect the antioxidant system in peach fruit during refrigerated storage

Huan, Chen (College of Food Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, PR China ); Han, Shuai (College of Food Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, PR China ); Jiang, Li (College of Food Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, PR China ); An, Xiujuan (College of Food Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, PR China ); Yu, Mingliang (Institute of Horticulture, Jiangsu Academy of Agricultural Sciences, Jiangsu, 210095, PR China ); Xu, Yin (College of Food Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, PR China ); Ma, Ruijuan (Institute of Horticulture, Jiangsu Academy of Agricultural Sciences, Jiangsu, 210095, PR China ); Yu, Zhifang (College of Food Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, PR China );
  • 초록  

    Abstract Peach fruit are susceptible to chilling injury (CI) during low temperature storage. In this study, the effect of hot air (HA, 38°C for 3h) and hot water (HW, 48°C for 10min) treatments on CI, fruit quality, reactive oxygen species (ROS) and antioxidants in peach fruit during storage at 4°C was investigated. The results indicated that HA or HW treatments maintained fruit quality, decreased Reactive oxygen species (ROS) and enhanced antioxidants activity of fruit. However, HW was more effective than HA in alleviating internal browning (IB) symptoms in fruit. HW treatment may be easier to affect the antioxidant system in peach fruit due to the higher heat transmission in water. HA treatment had no effect on either AsA metabolism or GSH metabolism. However, HW enhanced the AsA metabolism in the early stage of storage and the GSH metabolism in the late stage of storage. Enhanced AsA-GSH metabolism and up-regulated expressions of PpaSOD5, PpaCAT1 and PpaAPX2 in the HW treated fruit might play an important role in maintaining the lower ROS level and IB index during refrigerated storage. Highlights Heat treatment had positive effect on peach fruit quality during cold storage. Heat water treatment was more effective in alleviating chilling injury than heat air. Antioxidant system in peach fruit was easier to be affected by heat water treatment. AsA-GSH cycle might play an important role in maintaining the low H 2 O 2 content.


  • 주제어

    Peach fruit .   Heat treatment .   Chilling injury .   Reactive oxygen species .   Antioxidant system.  

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