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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.

Authors

Maysoun A. Mustafa maysoun.mustafa@gmail.com

Asgar Ali

Graham B. Seymour graham.seymour@nottingham.ac.uk

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.

Journal Article Type Article
Publication Date Jan 27, 2018
Journal Scientia Horticulturae
Print ISSN 0304-4238
Electronic ISSN 0304-4238
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 231
Institution 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, doi:10.1016/j.scienta.2017.09.041
DOI https://doi.org/10.1016/j.scienta.2017.09.041
Keywords Abiotic stress; Metabolic activity; Ripening; Nutraceutical value; Stress hormones
Publisher URL https://doi.org/10.1016/j.scienta.2017.09.041
Copyright Statement Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by-nc-nd/4.0

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Dragonfruit cold stress_manuscript_resubmission_8Sep17.pdf (288 Kb)
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Copyright Statement
Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by-nc-nd/4.0


Dragonfruit cold stress_figures_resubmission_8Sep17.pdf (239 Kb)
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Copyright Statement
Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by-nc-nd/4.0





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