Welcome to Chinese Journal of Tropical Crops,

Chinese Journal of Tropical Crops ›› 2020, Vol. 41 ›› Issue (2): 378-385.DOI: 10.3969/j.issn.1000-2561.2020.02.024

• Agricultural Product Processing, Preservation, Storage, Analysis and Detection • Previous Articles     Next Articles

Effects of Spermidine on the Texture and Ripening of Postharvest Papaya Fruit

LIU Xinting,YAN Ning,LI Wen,ZENG Jiaoke()   

  1. College of Horticulture, Hainan University, Haikou, Hainan 570228, China
  • Received:2019-05-14 Revised:2019-07-14 Online:2020-02-25 Published:2020-03-21
  • Contact: ZENG Jiaoke


In order to investigate the effect of spermidine on the texture and ripening of postharvest papaya fruit, the papaya fruit (cv. Risheng) was used as the test material. The changes of respiration rate and color of the spermidine treated papaya fruit during storage were determined, and various texture parameters of papaya fruit were determined by the texture profile analysis (TPA). Papaya fruit softening was delayed by appropriate concentration of spermidine, and the treatment of 5 mmol/L spermidine had the best effect, followed by 1 mmol/L spermidine, which resulted in higher hardness, chewiness, adhesiveness, significantly reduced the rate of fruit respiration, and delayed the fruit transformation. On the contrary, the treatment of 10 mmol/L spermidine accelerated the softening of papaya fruit. Correlation analysis indicated that there was significant positive correlation between fruit firmness, chewiness, adhesiveness, cohesiveness and recovery, but there was no obvious correlation between elasticity and other texture parameters (P<0.519). The results indicated that the TPA test could be used to evaluate the changes of postharvest papaya fruit texture.

Key words: papaya, texture, ripening, spermidine, texture profile analysis

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