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

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.