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<p>Postharvest decay caused by <i>Penicillium implicatum</i> and <i>Penicillium italicum</i> is a&#xa0;major constraint in pomegranate supply chains, leading to economic losses due to the fruit’s susceptibility to fungal infection and high consumer demand for intact fruit. Natural coatings have emerged as a&#xa0;promising approach to preserve postharvest quality and reduce decay. This study evaluated gum arabic, a&#xa0;natural polysaccharide coating, applied alone or in combination with clove oil or cinnamon oil, for controlling fungal decay and maintaining fruit quality during storage. In laboratory tests, essential oils moderately inhibited fungal growth, while combinations with gum arabic produced stronger suppression; gum arabic combined with clove oil reduced mycelial growth by 77% (<i>P.&#xa0;implicatum</i>) and 75% (<i>P.&#xa0;italicum</i>). In stored fruit, this coating lowered disease severity by more than 65% after 33&#xa0;days, reduced weight loss by over 40%, and preserved total soluble solids, titratable acidity, vitamin&#xa0;C, and total phenolics. Treated fruit also showed enhanced antioxidant enzyme activities, indicating improved resistance to oxidative stress. These results suggest that gum arabic combined with clove oil provides an effective and eco-friendly strategy to control decay and extend pomegranate shelf life.</p>

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Eco-Friendly Gum Arabic–Essential Oil Coatings for Decay Control and Quality Preservation of Pomegranate Fruit During Storage

  • 期刊论文

  • 发表日期：

    2026年1月8日

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  • Muhammad Waqar Alam,
  • Sumreen Anjum,
  • Mubeen Sarwar,
  • Adnan Mukhtar,
  • Akhtar Hameed,
  • Tanveer Hussain,
  • Tauhid Iqbal

摘要

Postharvest decay caused by Penicillium implicatum and Penicillium italicum is a major constraint in pomegranate supply chains, leading to economic losses due to the fruit’s susceptibility to fungal infection and high consumer demand for intact fruit. Natural coatings have emerged as a promising approach to preserve postharvest quality and reduce decay. This study evaluated gum arabic, a natural polysaccharide coating, applied alone or in combination with clove oil or cinnamon oil, for controlling fungal decay and maintaining fruit quality during storage. In laboratory tests, essential oils moderately inhibited fungal growth, while combinations with gum arabic produced stronger suppression; gum arabic combined with clove oil reduced mycelial growth by 77% (P. implicatum) and 75% (P. italicum). In stored fruit, this coating lowered disease severity by more than 65% after 33 days, reduced weight loss by over 40%, and preserved total soluble solids, titratable acidity, vitamin C, and total phenolics. Treated fruit also showed enhanced antioxidant enzyme activities, indicating improved resistance to oxidative stress. These results suggest that gum arabic combined with clove oil provides an effective and eco-friendly strategy to control decay and extend pomegranate shelf life.