FOOD SCIENCE ›› 2011, Vol. 32 ›› Issue (20): 300-306.doi: 10.7506/spkx1002-6630-201120063

• Packaging & Storage • Previous Articles     Next Articles

Effects of 1-MCP Treatment in Combination with Controlled Freezing-point Storage on Postharvest Qualities and Physiological Metabolism of Grape (Vitis vinifera L.)

LI Zhi-wen1,2,ZHANG Ping2,LIU Xiang3,LI Jiang-kuo2,JI Xian2,WANG Gang3,*   

  1. (1. School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China; 2. Tianjin Key Laboratory of Postharvest Physiology and Storage of Agricultural Products, National Engineering and Technology Research Center for Preservation of Agricultural Products, Tianjin 300384, China; 3. College of Agriculture and Bioengineering, Tianjin University, Tianjin 300072, China)
  • Online:2011-10-25 Published:2011-10-12

Abstract: Table grape (Vitis vinifera) “ZaNa” was used to investigate the effect of 0.5 or 1.0 μL/L 1-MCP treatment combined with controlled freezing-point temperature (-0.3℃ ± 0.3℃) storage on the postharvest quality and physiology indexes. The results showed that controlled freezing-point temperature storage combined with 1-MCP of both concentrations not only increased the good fruit rate, but also decreased the weight loss rate and stem browning index of grape. The combined treatment inhibited the increase of respiratory intensity and ethylene generation rate of grape cluster and MDA, O2- ·and H2O2 contents, and LOX activity in grape fruit, and maintained or increased SOD and POD activities of grape fruit. Controlled freezing-point temperature storage combined with 1.0μL/L 1-MCP treatment prolonged the storage life by 20 days compared to general cold storage. In conclusion, proper 1-MCP treatment in combination with controlled freezing-point temperature storage can increase storage postharvest fruit quality and resistance to deterioration and delay fruit senescence.

Key words: table grape, 1-MCP, controlled freezing-point temperature storage, quality, physiological metabolism

CLC Number: