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Effect of 24-epibrassinolide treatment on the metabolism of eggplant fruits in relation to development of pulp browning under chilling stress

Journal of Food Science and Technology volume 52, pages 3394–3401 (2015)Cite this article

Abstract

This study aims to investigate the effect of 24-epibrassinolide (EBR) on the metabolism in relation to development of chilling injury-induced pulp browning of eggplant fruit. The fruits were dipped for 10 min in solutions containing 10 μmM EBR and then stored at 1 °C for 15 days. Chilling injury index, weight loss, electrolyte leakage and malondialdehyde (MDA) content of control fruit increased during storage. Chilling injury improved phenylalanine ammonia-lyase (PAL), polyphenol oxidase (PPO), and peroxidase (POD) activities, which are correlated with the increase of total phenolic content and pulp browning of eggplant fruit. The inhibition of pulp browning by EBR treatment was possibly attributed to preserving the cell membrane integrity, reducing total phenolic content, and decreasing PAL, PPO, and POD activities. These results suggest that EBR may inhibit chilling injury and pulp browning in eggplant fruit during cold storage.

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Affiliations

  1. Department of Food Science and Engineering, Northwest University, Xi’an, 710069, People’s Republic of China

    Hui Gao, LiNa Kang, Qing Liu, Ni Cheng, BiNi Wang & Wei Cao

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  1. Hui Gao
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  2. LiNa Kang
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  3. Qing Liu
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  4. Ni Cheng
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  5. BiNi Wang
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  6. Wei Cao
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Correspondence to Hui Gao.

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Gao, H., Kang, L., Liu, Q. et al. Effect of 24-epibrassinolide treatment on the metabolism of eggplant fruits in relation to development of pulp browning under chilling stress. J Food Sci Technol 52, 3394–3401 (2015). https://doi.org/10.1007/s13197-014-1402-y

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  • DOI: https://doi.org/10.1007/s13197-014-1402-y

Keywords

  • Eggplant fruit
  • Brassinosteroids
  • Chilling injury
  • Pulp browning
  • Phenolic metabolism