Effect of post-harvest treatments on shelf life and physico-chemical changes of orange fruits

Document Type : Research and Review Papers

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Plant Production Department Offered Subjects: Horticulture- Post harvet Faculty of Agriculture Sohag University Sohag 82524 Egypt

Abstract

The study was carried out at Post Harvest Laboratory, 
Faculty of Agriculture, Sohag, during the 2021/2022 and 
2022/2023 seasons, on Balady orange fruits to determine post -
harvest treatment for better quality and desirable shelf life under 
room storage. The present study was conducted to investigate the 
effects of Hot water Dipping (HWD), Paraffin Oil, Sodium 
Bicarbonate (NaHCO3), Low-Density Polye Ethelene film 
(LDPE), Sodium Bicarbonate plus Low-Density Polye Ethelene 
(LDPE), Hot water Dipping plus Low-Density Polye Ethelene 
(LDPE), Hot water Dipping plus Paraffin Oil, Sodium Bicarbonate 
plus Paraffin Oil and distilled water (assigned as control) on postharvest "Balady" Orange stored under room temperature 
conditions. The experiment results suggested that the treated 
orange significantly improved the shelf life of Balady orange as 
compared to that of untreated ones in both seasons. The results 
showed that wrapping orange fruits with NaHCO3+ LDPE had the 
longest shelf life (85, 84) days, whereas untreated orange fruits 
(the control) had the shortest shelf life (45, 42) days in both 
seasons, respectively. The highest physiological weight loss was in 
the untreated (the control) treatment, while the lowest was in 
warped orange fruits (LDPE). The highest physical and chemical 
fruit quality was shown in wrapping orange fruits with LDPE

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