Date Received: 21-04-2025
Date Accepted: 17-09-2025
Date Published: 30-09-2025
##submissions.doi##: https://doi.org/10.31817/tckhnnvn.2025.23.9.08
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Hot Water Treatment and Carrageenan Coating Slow Postharvest Ripening and Deterioration of ‘Tieu Hong’ Banana
Keywords
Banana, heat treatment, coating, postharvest technology
Abstract
The ‘tieu hong’ banana is a tropical fruit with large production in Vietnam but post-harvest preservation is facing many difficulties and there is no effective solution. This study aimed to evaluate the effects of hot water treatment combined with carrageenan coating on the maintenaceof the quality of the banana. Bananas were treated with four methods: untreated control, hot water treatment at 47°C for 10 minutes, 0.5% carrageenan coating, and combined treatment. The parameters investigated included weight loss, colour, total soluble solids, chlorophyll a, phenolic content, DPPH antioxidant activity of the fruit flesh and peel, and the disease incidence and severity. The results show that hot water treatment combined with carrageenan coating helped reduce weight loss, maintain colour and chlorophyll content in the fruit peel, slow down the change in total soluble solids, and enhance phenolic content and antioxidant capacity in both fruit flesh and peel compared to other treatments. This method also helped significantly reduce the incidence and severity of banana disease. Hot water treatment combined with carrageenan coating showed effectiveness in slowing down the postharvest ripening process and decreasing the deterioration in ‘tieu hong’ bananas.
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