Title: Physiological response of persimmon to 1-MCP post-harvest treatments in long-term cold storage

Authors: Maryam Bagheri; Mahmood Esna-Ashari; Ahmad Ershadi

Addresses: Department of Horticultural Science, Faculty of Agriculture, University of Bu-Ali Sina, 65178 Hamedan, Iran; CBQF – Centro de Biotecnologia e Química Fina – Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua de Diogo Botelho 1327, 4169-005, Porto, Portugal ' Department of Horticultural Science, Faculty of Agriculture, University of Bu-Ali Sina, Hamedan, Iran ' Department of Horticultural Science, Faculty of Agriculture, University of Bu-Ali Sina, Hamedan, Iran

Abstract: This research studies the effects of 1-methylcyclopropene (1-MCP) post-harvest treatment on chilling injuries and quality of persimmon fruit cv. 'Karaj' during a four-month cold storage. Every 15 d in the cold phase, several physiological parameters were measured. The results illustrated that 1-MCP postharvest treatment with different concentrations (equalling to 0.5, 1 and 2 μL^-1) meaningfully reduces chilling injuries of the persimmon fruit. The loss of weight, flesh firmness, titratable acidity, total phenolics, soluble tannins and antioxidant capacity can be alleviated using higher 1-MCP concentrations. These results can be related with alterations in antioxidant enzymes' activities together with protection of fruit's membrane integrity. Based on the results, the storage duration recommended for this cultivar is 45 d by application of 1-2 μL^-1 of 1-MCP.

Keywords: antioxidant capacity; membrane integrity; chilling injury; persimmon.

DOI: 10.1504/IJPTI.2022.125894

International Journal of Postharvest Technology and Innovation, 2022 Vol.8 No.4, pp.328 - 344

Received: 08 Apr 2021
Accepted: 15 Feb 2022
Published online: 03 Oct 2022 *