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<p>The rapid metabolic changes that occur in jujube fruit during ripening limit its shelf life (SL) and increase consumer rejection. In this study, the effects of 1% chitosan (CT) and 1% procyanidin (PN) treatments either alone or in combination were evaluated on ‘Apple Kul’ jujube fruit during SL at ambient conditions (22 ± 1˚C, 65% RH) for 15 days. CT coatings and PN treatments effectively reduced respiration and ethylene production, preserving fruit quality and delaying senescence in ‘Apple Kul’ jujube. Treated fruits showed greener peels, higher firmness, membrane stability index (MSI), titratable acidity (TA), and lower total soluble solids (TSS), TSS/TA ratio, and weight loss compared to the control. Despite declines during storage, total phenol content (TPC), flavonoids, vitamin C, chlorophyll, and free radical scavenging capacity (FRSC) were higher in treated fruits. Additionally, hydrolytic enzyme and polyphenoloxidase (PPO) activities were lower, while antioxidant enzyme activities (SOD, CAT, POD) were higher. Decay incidence, microbial counts, and malondialdehyde (MDA) increased but were suppressed in treated fruits. The combined CT and PN treatment were more effective in preserving quality and extending SL at ambient conditions than either treatment alone. Therefore, the combined treatment of CT coating and PN could be used to extend the SL of ‘Apple Kul’ jujube at ambient conditions. Using CT coating and PN together was more effective in maintaining fruit quality and delaying aging than applying them individually, offering a practical solution for extending the SL of ‘Apple Kul’ jujube at ambient conditions.</p>

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Evaluating the impact of exogenous chitosan and procyanidin dipping on postharvest quality and biochemical changes of ‘Apple Kul’ jujube during ambient shelf life

  • 期刊论文

  • 发表日期：

    2025年11月13日

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  • Md. Arfan Ali,
  • Ayşe Tülin ÖZ,
  • Shreef Mahmood,
  • Md. Golap Hossain,
  • Md. Nurul Huda,
  • Basmah M. Alharbi,
  • Md. Sarowar Alam,
  • Nadiyah M. Alabdallah,
  • Md. Mahadi Hasan

摘要

The rapid metabolic changes that occur in jujube fruit during ripening limit its shelf life (SL) and increase consumer rejection. In this study, the effects of 1% chitosan (CT) and 1% procyanidin (PN) treatments either alone or in combination were evaluated on ‘Apple Kul’ jujube fruit during SL at ambient conditions (22 ± 1˚C, 65% RH) for 15 days. CT coatings and PN treatments effectively reduced respiration and ethylene production, preserving fruit quality and delaying senescence in ‘Apple Kul’ jujube. Treated fruits showed greener peels, higher firmness, membrane stability index (MSI), titratable acidity (TA), and lower total soluble solids (TSS), TSS/TA ratio, and weight loss compared to the control. Despite declines during storage, total phenol content (TPC), flavonoids, vitamin C, chlorophyll, and free radical scavenging capacity (FRSC) were higher in treated fruits. Additionally, hydrolytic enzyme and polyphenoloxidase (PPO) activities were lower, while antioxidant enzyme activities (SOD, CAT, POD) were higher. Decay incidence, microbial counts, and malondialdehyde (MDA) increased but were suppressed in treated fruits. The combined CT and PN treatment were more effective in preserving quality and extending SL at ambient conditions than either treatment alone. Therefore, the combined treatment of CT coating and PN could be used to extend the SL of ‘Apple Kul’ jujube at ambient conditions. Using CT coating and PN together was more effective in maintaining fruit quality and delaying aging than applying them individually, offering a practical solution for extending the SL of ‘Apple Kul’ jujube at ambient conditions.