Food and Fermentation Industries >

2024 , Vol. 50 >Issue 23: 284 - 292

DOI: https://doi.org/10.13995/j.cnki.11-1802/ts.037813

The effects of different biopreservatives on the postharvest storage quality and physiological changes in tomatoes

  • YANG Junxiang ,
  • ZHANG Peng ,
  • CAO Sen ,
  • JIA Xiaoyu ,
  • WU Di ,
  • LI Chunyuan ,
  • LIU Ling ,
  • LI Jiangkuo
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  • 1(School of Food Science, Shenyang Agricultural University, Shenyang 110866, China)
    2(Institute of Agricultural Products Preservation and Processing Technology, Tianjin Academy of Agricultural Sciences, Tianjin Key Laboratory of Postharvest Physiology and Storage of Agricultural Products, Key Laboratory of Storage of Agricultural Products, Ministry of Agriculture and Rural Affairs, National Engineering and Technology Research Center for Preservation of Agricultural Products (Tianjin), Tianjin 300384, China)
    3(School of Food and Pharmaceutical Engineering, Guiyang University, Guiyang 550005, China)
    4(College of Agriculture & Biotechnology, Zhejiang University, Hangzhou 310058, China)
    5(Zhejiang University Zhongyuan Institute, Zhengzhou 450000, China)

Received date: 2023-10-31

  Revised date: 2024-02-06

  Online published: 2024-12-27

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Abstract

To explore the impact of ε-polylysine (∘-PL) and natamycin (NT) as biopreservatives on the postharvest storage quality and physiological changes in tomatoes, this study utilized tomatoes as experimental material.Treatments included 1.0 g/L ε-PL, 0.8 g/L NT, and a control group without any treatment.After treatment, tomatoes were wrapped in PE film and stored in a cold room at 4 ℃.Sensory quality, nutritional indicators, physiological parameters, aging markers, and enzyme activities related to physiological changes were measured every 7 days.The results showed that both ∘-PL and NT treatments effectively maintained the quality of tomatoes during storage.Both treatments preserved the content of soluble solids, vitamin C, titratable acids, and flavonoids, and enhanced the activities of APX, PAL, and chitinase.Notably, NT treatment significantly maintained the sensory quality, soluble protein content, and lycopene content of postharvest tomatoes;inhibited the increase in respiration rate and ethylene production;suppressed the accumulation of MDA;maintained total phenol content, and enhanced the activities of POD, CAT, and β-1,3-glucanase.These experimental results provide new theoretical basis and data support for postharvest cold storage preservation of tomatoes, and offer new insights and methods for postharvest cold chain logistics of tomatoes.

Key words： ∘-polylysine; natamycin; tomatoes; storage preservation; physiological changes

Cite this article

YANG Junxiang , ZHANG Peng , CAO Sen , JIA Xiaoyu , WU Di , LI Chunyuan , LIU Ling , LI Jiangkuo . The effects of different biopreservatives on the postharvest storage quality and physiological changes in tomatoes[J]. Food and Fermentation Industries, 2024 , 50(23) : 284 -292 . DOI: 10.13995/j.cnki.11-1802/ts.037813

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