The effect of 1-methylcyclopropene treatment on refrigerated quality of blueberry fruit was analyzed based on multivariate statistical analysis

  • ZHANG Yuyu ,
  • HONG Yongzhong ,
  • YONG Chengjian ,
  • CHEN Zebin ,
  • LIU Jiani ,
  • SU Yuan
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  • (College of Agronomy and Life Sciences, Kunming University, Kunming 650214, China)

Received date: 2021-10-26

  Revised date: 2021-12-09

  Online published: 2023-02-15

Abstract

To explore the quality changes of blueberry fruits during cold storage, “Sharp Blue” blueberry fruits were fumigated with 1-methylcyclopropene(1-MCP) at concentrations of 0.5, 1.0, and 1.5 μL/L, respectively. Combined with multivariate statistical analysis, the effect of 1-MCP on the quality of blueberry fruits during cold storage was studied. Results showed that compared with the control group (CK), 1-MCP treatment could significantly maintain the decrease of titratable acid and vitamin C contents, delay the increase of relative conductivity and respiration rate, delay the peak of respiration and ethylene release, and delay the decrease of polyphenol oxidase (PPO) and peroxidase (POD) activities. Inhibiting the increase of malondialdehyde (MDA) content can effectively delay the senescence of blueberry fruit. Principal component analysis extracted two factors with characteristic values greater than 1, and the cumulative variance contribution rate reached 93.262%, which could fully reflect the important information of the original data. Correlation analysis showed that the relative conductivity was significantly positively correlated with respiratory intensity, ethylene release, PPO, POD, and MDA. According to the quality indexes of frozen blueberry fruit, the control group and the treatment group were analyzed by cluster analysis, which could be divided into 3 groups. In conclusion, 1.0 μL/L 1-MCP fumigationhad the best effect on the postharvest refrigerated quality of blueberry fruits.

Cite this article

ZHANG Yuyu , HONG Yongzhong , YONG Chengjian , CHEN Zebin , LIU Jiani , SU Yuan . The effect of 1-methylcyclopropene treatment on refrigerated quality of blueberry fruit was analyzed based on multivariate statistical analysis[J]. Food and Fermentation Industries, 2023 , 49(2) : 257 -263 . DOI: 10.13995/j.cnki.11-1802/ts.029827

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