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Enhancement of post-harvest shelf life of nectarines (Prunus persica (L.) Batsch var. nectarina) using hexanal

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dc.contributor.advisor Subramanian, Jayasankar
dc.contributor.author Krishna Kumar, Shanthanu
dc.date.accessioned 2018-04-30T17:46:43Z
dc.date.available 2018-04-30T17:46:43Z
dc.date.copyright 2018-04
dc.date.created 2018-04-17
dc.date.issued 2018-04-30
dc.identifier.uri http://hdl.handle.net/10214/12941
dc.description.abstract This research investigated the effects of an ‘Enhanced Freshness Formulation’ (EFF) with hexanal as the key ingredient to improve the shelf life of nectarines. Pre-harvest sprays of EFF on ‘Fantasia’ nectarines, conducted at two commercial orchards in the Niagara region, ON, showed a general improvement in shelf life. Application of EFF delayed the incidence of chilling injury symptoms (internal browning and mealiness/woolliness) by one week. Treated fruits maintained significantly higher firmness until 38 d post-harvest. qRT-PCR was conducted to evaluate the expression levels of 22 genes potentially involved in ripening, to understand the regulatory effects of the hexanal formulation. EFF application induced a highly significant reduction in transcript levels of three Phospholipase D genes, five N-glycoprotein group genes, and other genes involved in ripening and softening processes. These findings indicate that a delay in the ripening process caused by EFF may be associated with the modulation of the expression of key ripening-related genes, enhancing shelf life and quality of nectarines. en_US
dc.description.sponsorship Global Affairs Canada - Canadian International Food Security Research Fund en_US
dc.language.iso en en_US
dc.rights Attribution-NoDerivs 2.5 Canada *
dc.rights.uri http://creativecommons.org/licenses/by-nd/2.5/ca/ *
dc.subject hexanal en_US
dc.subject nectarine en_US
dc.subject shelf life en_US
dc.subject phospholipase D en_US
dc.subject mealiness en_US
dc.subject browning en_US
dc.title Enhancement of post-harvest shelf life of nectarines (Prunus persica (L.) Batsch var. nectarina) using hexanal en_US
dc.type Thesis en_US
dc.degree.programme Plant Agriculture en_US
dc.degree.name Master of Science en_US
dc.degree.department Department of Plant Agriculture en_US
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Attribution-NoDerivs 2.5 Canada Except where otherwise noted, this item's license is described as Attribution-NoDerivs 2.5 Canada