Application of AVG or 1-MCP-MBs on Postharvest Quality of Pummelo cv. “Tubtim Siam” (Citrus maxima Burm.)


  • Paemika Promkaew King Mongkut's University of Technology Thonburi (Bangkhuntien)
  • Satoru Kondo Chiba University
  • Nutthachai Pongprasert King Mongkut's University of Technology Thonburi (Bangkhuntien)
  • Chalermchai Wongs-Aree King Mongkut’s University of Technology Thonburi (Bangkhuntien)
  • Samak Kaewsuksaeng Thaksin University
  • Varit Srilaong King Mongkut’s University of Technology Thonburi (Bangkhuntien)


Tubtim siam pummelo, AVG, 1-MCP-MBs, Postharvest, Quality


Tubtim siam pummelo (Citrus maxima Burm.) is a geographical indentification (GI) product of Nakhon Si Thammarat province, Thailand and it has become more popular in the premium fruit market. Degradation of green peel and change in the red-ruby pulp color are two main deteriorative postharvest quality parameters caused by exogeneous ethylene. The aim of this study was to evaluate the effectiveness of AVG and 1-MCP-microbubbles (MBs) on maintaining postharvest quality of Tubtim siam pummelo through dipping in AVG and 1-MCP-MBs at 500 and 5 ppm, respectively. The control was fruit without any treatment. The fruits were stored at room temperature (25 ± 2 °C) for 21 days. Fruit treated with AVG resulted in a remarkably reduced respiration rate and ethylene production compared to other treatments. Moreover, delaying of peel yellowing was indicated by significantly higher total chlorophyll contents, hue angle values of peel and delayed degradation of red-ruby pulp color were also observed in 1-MCP-MBs treated fruit. On the other hand, application of AVG and 1-MCP-MBs retarded a reduction of weight loss compared to the control. Chemical composition in pulp including; total carotenoid, beta-carotenoid, lycopene, vitamin C, DPPH free radical scavenging activity and total phenolic content were maintained and were significantly different when compared with the control treatment. In conclusion, AVG and 1-MCP-MBs treatments could maintain both external and internal postharvest quality of Tubtim siam pummelo fruit.


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How to Cite

Promkaew, Paemika, Satoru Kondo, Nutthachai Pongprasert, Chalermchai Wongs-Aree, Samak Kaewsuksaeng, and Varit Srilaong. 2019. “Application of AVG or 1-MCP-MBs on Postharvest Quality of Pummelo Cv. ‘Tubtim Siam’ (Citrus Maxima Burm.)”. Food and Applied Bioscience Journal 7 (3):55-71.