Food and Fermentation Industries >

2024 , Vol. 50 >Issue 23: 276 - 283

DOI: https://doi.org/10.13995/j.cnki.11-1802/ts.038292

Effects of mechanical damage stress on membrane lipid metabolism of postharvest banana

  • CHEN Yuxian ,
  • HUANG Chunxia ,
  • LI Li ,
  • SUN Jian ,
  • YI Ping ,
  • LI Jing ,
  • HUANG Fang ,
  • HUANG Min ,
  • GAN Ting ,
  • LONG Yuhan
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  • 1(College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541006, China)
    2(Agro-Food Science and Technology Research Institute, Guangxi Academy of Agricultural Sciences, Nanning 530007, China)
    3(Guangxi Key Laboratory of Fruits and Vegetables Storage-Processing Technology, Nanning 530007, China)
    4(Guangxi Academy of Agricultural Sciences, Nanning 530007, China)

Received date: 2023-12-18

  Revised date: 2024-02-01

  Online published: 2024-12-27

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Abstract

The mechanism of mechanical damage in banana fruit after harvest was studied from the perspective of cell membrane degradation, which provided a theoretical foundation for preserving the postharvest quality of bananas.In this study, banana fruit (Guijiao No.6) was subjected to mechanical damage and then stored at a temperature of 25 ℃ and a relative humidity of 90%-95% for 15 days.Changes in cell membrane permeability, activity of crucial enzymes for cell membrane degradation, content of phospholipids in the cell membrane and gene expression of PLD during the storage of banana peels were determined.Results showed that mechanical damage treatment resulted in an increase in the permeability of peel cell membrane during postharvest banana storage.The activity levels of PLC, PLD, LOX, DGK, and LPP of banana peel during storage were significantly higher than those in the control group (P<0.05).Additionally, the mechanical damage treatment resulted in a decrease in the content of PE and an accumulation of PA, PC, and DAG.The relative expression level of MaPLD1 and MaPLD4 genes increased, which were significantly higher than that of the control group (P<0.05), whereas the relative expression of the MaPLD3 gene in banana peel was inhibited by mechanical damage treatment.Comprehensive analysis revealed that mechanical damage stress is a primary cause of postharvest quality decline in banana fruit.This stress accelerated membrane lipid metabolism, leading to the destruction of the structure and function of banana pericarp cell membranes.The objective of this study is to examine the impact of mechanical damage on the postharvest quality of banana fruit and its underlying mechanism.This will provide a theoretical foundation for enhancing the postharvest storage quality of banana fruit.

Key words： mechanical damage; banana; membrane lipid metabolism; enzyme activity; phospholipase

Cite this article

CHEN Yuxian , HUANG Chunxia , LI Li , SUN Jian , YI Ping , LI Jing , HUANG Fang , HUANG Min , GAN Ting , LONG Yuhan . Effects of mechanical damage stress on membrane lipid metabolism of postharvest banana[J]. Food and Fermentation Industries, 2024 , 50(23) : 276 -283 . DOI: 10.13995/j.cnki.11-1802/ts.038292

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