Influence of exogenous application of melatonin on biochemical changes of avocado fruit during ripening


  • Vu Thi Cam Tu Quy Nhon University, Binh Dinh, Vietnam
  • Huynh Thi Thanh Tra Quy Nhon University, Binh Dinh, Vietnam
  • Hoang Duc An Quy Nhon University, Binh Dinh, Vietnam
  • Le Duy Thanh Quy Nhon University, Binh Dinh, Vietnam
  • Hoang Thi Minh Nguyet Vietnam National University of Agriculture, Ha Noi, Vietnam
  • Truong Thi Hue Quy Nhon University, Binh Dinh, Vietnam



Persea americana, melatonin, postharvest quality, biochemical parameter, phenolic compound.


Melatonin (MT) is considered as a plant growth regulator, has extensive functions and plays a prominent role in ripening and fruit senescence. However, there has been no report regarding the influence of melatonin on biochemical changes of avocado fruit (Persea americana Mill.) during ripening. In this study, the cultivar of avocado fruit “034” was treated with MT at 0.1 mM and 0.5 mM to evaluate biochemical changes relating to the fruit quality during storage at 22 oC ± 1 and 75–80% relative humidity. The results showed that postharvest fruits treated with MT effectively delayed the changes in ripening parameters and that the effectiveness depends on MT concentration. Application of MT (0.5 mM, immersion for 2 hours) to “034” avocado enhanced total phenol and flavonoid accumulation and maintained titratable acidity, total soluble solids, lipid and ascorbic acid contents. Furthermore, 0.5 mM MT treatment effectively suppressed the increase of total sugar and reduced weight loss compared with the control fruit after 12 days of storage. The results indicate that the MT application could be a useful tool to maintain avocado fruit quality during the postharvest stage.


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Author Biographies

Vu Thi Cam Tu, Quy Nhon University, Binh Dinh, Vietnam

Master student in Faculty of Natural Sciences

Huynh Thi Thanh Tra, Quy Nhon University, Binh Dinh, Vietnam

Faculty of Natural Sciences

Hoang Thi Minh Nguyet, Vietnam National University of Agriculture, Ha Noi, Vietnam

Faculty of Food Science and Technology



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How to Cite

Cam Tu, V. T., Thanh Tra, H. T., Duc An, H., Duy Thanh, L., Hoang, T. M. N., & Thi Hue, T. (2022). Influence of exogenous application of melatonin on biochemical changes of avocado fruit during ripening. Academia Journal of Biology, 44(2), 123–132.