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Treatment of dragonfruit ( Hylocereus polyrhizus ) with salicylic acid and methyl jasmonate improves postharvest physico-chemical properties and antioxidant activity during cold storage

Mustafa, Maysoun A.; Ali, Asgar; Seymour, Graham B.; Tucker, Gregory A.

Treatment of dragonfruit ( Hylocereus polyrhizus ) with salicylic acid and methyl jasmonate improves postharvest physico-chemical properties and antioxidant activity during cold storage Thumbnail


Authors

Maysoun A. Mustafa

Asgar Ali

Graham B. Seymour

Gregory A. Tucker



Abstract

As the market for tropical fruit constantly expands, cold storage is increasingly used for transporting fruits over long distances. This is an economic postharvest tool, yet challenges tropical fruits by exposure to chilling injury. An assessment of the effect of abiotic stresses, induced by cold storage, on dragonfruit was conducted. Dragonfruit was treated with salicylic acid (SA) and methyl jasmonate (MJ) and subjected to cold storage for three weeks. Fruits were treated with either SA or MJ, administered at four different concentrations, along with an untreated control, and stored at 6 °C. Changes in biochemical quality parameters, along with bioactive content and antioxidant activity were assessed during storage. Application of SA was found to reduce the metabolic activity of the fruit, as determined by soluble solids content and titratable acidity. Meanwhile, MJ significantly enhanced the betacyanin content and antioxidant activity. We demonstrate that cold storage can be applied for dragonfruit, by combining the treatment with the application of hormones, especially MJ which can enhance the antioxidant activity of dragonfruit under cold storage.

Citation

Mustafa, M. A., Ali, A., Seymour, G. B., & Tucker, G. A. (2018). Treatment of dragonfruit ( Hylocereus polyrhizus ) with salicylic acid and methyl jasmonate improves postharvest physico-chemical properties and antioxidant activity during cold storage. Scientia Horticulturae, 231, https://doi.org/10.1016/j.scienta.2017.09.041

Journal Article Type Article
Acceptance Date Sep 25, 2017
Online Publication Date Dec 22, 2017
Publication Date Jan 27, 2018
Deposit Date Mar 7, 2018
Publicly Available Date Dec 23, 2018
Journal Scientia Horticulturae
Print ISSN 0304-4238
Electronic ISSN 0304-4238
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 231
DOI https://doi.org/10.1016/j.scienta.2017.09.041
Keywords Abiotic stress; Metabolic activity; Ripening; Nutraceutical value; Stress hormones
Public URL https://nottingham-repository.worktribe.com/output/906994
Publisher URL https://doi.org/10.1016/j.scienta.2017.09.041
Contract Date Mar 7, 2018

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