Preharvest methyl jasmonate application delays cell wall degradation and upregulates phenolic metabolism and antioxidant activities in cold stored raspberries.

Autor: Shah HMS; Horticulture, School of Science, Edith Cowan University, 270 Joondalup Drive, Joondalup 6027, Western Australia, Australia., Singh Z; Horticulture, School of Science, Edith Cowan University, 270 Joondalup Drive, Joondalup 6027, Western Australia, Australia. Electronic address: z.singh@ecu.edu.au., Hasan MU; Horticulture, School of Science, Edith Cowan University, 270 Joondalup Drive, Joondalup 6027, Western Australia, Australia., Woodward A; Horticulture, School of Science, Edith Cowan University, 270 Joondalup Drive, Joondalup 6027, Western Australia, Australia., Afrifa-Yamoah E; Horticulture, School of Science, Edith Cowan University, 270 Joondalup Drive, Joondalup 6027, Western Australia, Australia.
Jazyk: angličtina
Zdroj: Food chemistry [Food Chem] 2025 Jan 01; Vol. 462, pp. 141020. Date of Electronic Publication: 2024 Aug 28.
DOI: 10.1016/j.foodchem.2024.141020
Abstrakt: The effects of preharvest methyl jasmonate (MeJA) spray application on the physicochemical quality, metabolism of phenolics, and cell wall components in raspberries were investigated during a 10-day cold storage period. MeJA spray reduced firmness loss, decay incidence, and weight loss, while maintained higher levels of soluble solids content, ascorbic acid, anthocyanins and flavonoids in raspberries. Furthermore, MeJA application resulted in increased total pectin and protopectin levels, as well as lowered water-soluble pectin, and activities of pectin methyl esterase, polygalacturonase and cellulase enzymes. Additionally, MeJA treatment upregulated the phenylpropanoid pathway, leading to higher endogenous phenolics and activities of phenylalanine-ammonia lyase and shikimate dehydrogenase. In conclusion, preharvest MeJA spray application could be adopted to enhance the storage potential of cold-stored raspberries for 10 days by maintaining higher firmness, assuring better physicochemical quality, and increasing phenolic metabolism, while reducing cell wall hydrolysis.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2024 The Authors. Published by Elsevier Ltd.. All rights reserved.)
Databáze: MEDLINE
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