Combination effects of calcium chloride and chitosan on the postharvest quality of okra (Abelmoschus esculentus L.) during storage

Dosti mirghaed, Majid; Zare-Bavani, Mohammad Reza

doi:10.22034/FSCT.20.145.149

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Tarbiat Modares University Press

Journal of food science and technology ( Iran)

Volume 20, Issue 145 (2024) FSCT 2024, 20(145): 149-169 | Back to browse issues page

‎ 10.22034/FSCT.20.145.149

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Dosti mirghaed M, Zare-Bavani M R. Combination effects of calcium chloride and chitosan on the postharvest quality of okra (Abelmoschus esculentus L.) during storage. FSCT 2024; 20 (145) :149-169
URL: http://fsct.modares.ac.ir/article-7-71509-en.html

Combination effects of calcium chloride and chitosan on the postharvest quality of okra (Abelmoschus esculentus L.) during storage

Majid Dosti mirghaed¹

, Mohammad Reza Zare-Bavani

1- Department of Horticultural Science, Faculty of Agriculture, Agricultural Sciences and Natural Resources University of Khuzestan, Mollasani, Iran.
2- Department of Horticultural Science, Faculty of Agriculture, Agricultural Sciences and Natural Resources University of Khuzestan, Mollasani, Iran. , mzarebavany@gmail.com

Abstract: (455 Views)

Okra is a vegetable crop with high nutritional value that quickly loses its quality and decay after harvesting. This research aimed to investigate influences of calcium chloride concentrations combined with chitosan coating on the quality characteristics of okra pods during post-harvest. Okra pods were immersed in different concentrations of calcium chloride (0%, 1%, 2%, 4%) and then covered with chitosan (0, 0.5, 1 and 1.5%). Physicochemical analysis including: physiological weight loss, firmness, titratable acidity, total soluble solids, ascorbic acid content, total phenol content, and visual appearance and decay rate were performed at 4-day intervals for 16 days. The results showed that during storage, weight loss, soluble solids, and decay rate increased and firmness, ascorbic acid, total phenol content, titratable acidity and visual appearance showed a sharp decrease. Chitosan coating containing calcium chloride was significantly effective in maintaining the quality characteristics of okra. Among the investigated treatments, a combination of 2% calcium chloride and 1% chitosan was the most effective method to maintain the highest overall quality index score of okra pods stored at 4°C for up to 16 days. This treatment also significantly reduced weight loss and maintained ascorbic acid, total phenolic content, titratable acidity and visual appearance, and delayed increase in soluble solids and decay.

Keywords: Ascorbic acid, Physiological weight loss, Total phenol, Total soluble solids, Visual appearance

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Article Type: Original Research | Subject: Physiology after harvesting fruits and vegetables
Received: 2023/09/11 | Accepted: 2023/10/19 | Published: 2024/02/20

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