Effect of Treatment With Chitosan, Citric Acid and Malic Acid on Storage of Valencia Orange Fruits

orange Valencia cold storage quality Chitosan malic citric

Authors

  • Ahmed Adnan Mohammed Department of Medicinal and Industrial Plants, College of Medicinal and Industrial Plants, University Kirkuk, Kirkuk, Iraq
  • Omar Thaer Kamil Department of Medicinal and Industrial Plants, College of Medicinal and Industrial Plants, University of Kirkuk, Kirkuk, Iraq.
  • Omar Turhan Jalil College of Agriculture, University of Kirkuk, Kirkuk, Iraq.
March 6, 2026

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The present investigation was carried out on season 2023 on Valencia orange fruit. The effect of postharvest treatments i.e. chitosan at 2%, citric acid 0.5% and malic acid 150 ppm as well as their combinations on some fruit quality parameters during cold storage at 5°C. 90-95% relative humidity, to assess the effect of treatments on Vitamin C (mg/100g), Juice weight (%), Fruit weight (%), Total sugars (mg/g), Fruit size (cm3) and Total Phenols (mg/100g FW).
It was concluded from the results, that Valencia orange fruits treated with chitosan 2% + citric acid 0.5% + malic acid 150 ppm gave the best results during cold storage at 5°C after 90 days.