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Physiological, metabolite and volatile analysis of cut size in melon during postharvest storage

Spadafora, Natasha D., Machado, I., Muller, Carsten Theodor ORCID:, Pintado, M., Bates, M. and Rogers, Hilary Joan ORCID: 2015. Physiological, metabolite and volatile analysis of cut size in melon during postharvest storage. Acta Horticulturae 1071 , pp. 787-793. 10.17660/ActaHortic.2015.1071.104

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Melons are an important component of fresh fruit salads, however, they suffer from limited shelf life. Processing of melon fruit for use in fruit salads induces a number of changes including alterations in colour and texture. In addition, respiration rate and ethylene production are affected. Processing also elicits changes in flavour (sweetness) and aroma (production of volatile organic compounds – VOCs), of critical importance to the consumer. Several parameters govern shelf life; temperature is a critical factor. In this study we tested whether cut size is another parameter that can affect quality indicators. Melon (Cucumis melo ‘Arapaho’) cubes of three sizes were stored at 4°C and assessed for quality at five time-points over a 15-day period. We assessed a number of parameters including firmness, loss of fresh weight, respiration rate, antioxidant capacity, phenolic compounds and carotenoid content. In addition we measured VOC profiles to assess whether there were any qualitative changes associated with storage period and/or cut size. Fresh weight (FW) loss and respiration rate increased significantly with storage time and FW loss was affected by cut size. Total carotenoid levels remained stable during the storage time as did antioxidant capacity in all cut sizes. However, cinnamic acid levels tended to decrease in the last stage of the storage period and changes in β-carotene content correlated with cut size (though not significantly). We were also able to separate the VOC profiles from the different cut sizes indicating that VOCs may be useful markers as indicators of the effects of cut size and storage time on quality.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Biosciences
Subjects: Q Science > QH Natural history > QH301 Biology
Additional Information: pdf uploaded in accordance with publisher's policy at
Publisher: International Society for Horticultural Science
ISSN: 0567-7572
Related URLs:
Date of First Compliant Deposit: 30 March 2016
Last Modified: 06 Nov 2023 17:09

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