Evaluation of carbon dioxide elevation on phenolic compounds and antioxidant activity of red onion (Allium cepa L.) during postharvest storage

Carbon dioxide (CO2) is considered one of the eco-related key factors that negatively affect global climatic change. Also, CO2 can play an important role in the postharvest quality of the agri-products. In this study, the impact of CO2 on the quality of postharvest onions that were stored at 23 °C f...

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Bibliographic Details
Published in:Plant physiology and biochemistry 2023-07, Vol.200, p.107752-107752, Article 107752
Main Authors: Gouda, Mostafa, Nassarawa, Sanusi Shamsudeen, Gupta, S. Dutta, Sanusi, Nassarawa Isma'il, Nasiru, Mustapha Muhammad
Format: Article
Language:English
Subjects:
Antioxidant enzymes activities
Carbon dioxide
Phytochemistry
Quality components
Red onion storage
Soluble sugars
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Summary:Carbon dioxide (CO2) is considered one of the eco-related key factors that negatively affect global climatic change. Also, CO2 can play an important role in the postharvest quality of the agri-products. In this study, the impact of CO2 on the quality of postharvest onions that were stored at 23 °C for 8 weeks was investigated. The weight loss, phenolic, flavonoid, flavanol, anthocyanin, antioxidant activity, and soluble sugar were analyzed during the study period. The results showed that 20% CO2 treatment was significantly (P > 0.05) more effective than 15% CO2 and control in inhibiting weight loss. Additionally, 20% CO2 treatment significantly retained higher antioxidant enzyme activities such as CAT, APX, and SOD than 15% CO2 and control. During storage, 20% CO2 treatment significantly (P 
ISSN:0981-9428
1873-2690
DOI:10.1016/j.plaphy.2023.107752