COSTECH Integrated Repository

Pectin modifications and the Role of Pectin-degrading Enzymes during Postharvest Softening of Jonagold Apples

Show simple item record

dc.creator Gwanpua, Sunny George
dc.creator Van Buggenhout, Sandy
dc.creator Verlinden, Bert
dc.creator Christiaens, Stefanie
dc.creator Shpigelman, Avi
dc.creator Vicent, Victor
dc.creator Jamsazzadeh Kermani, Zahra
dc.creator Nicolaï, Bart
dc.creator Hendrickx, Marc
dc.creator Geeraerd, Annemie
dc.date 2016-07-12T14:04:29Z
dc.date 2016-07-12T14:04:29Z
dc.date 2014
dc.date.accessioned 2018-03-27T08:32:45Z
dc.date.available 2018-03-27T08:32:45Z
dc.identifier Gwanpua, S., Van Buggenhout, S., Verlinden, B., Christiaens, S., Shpigelman, A., & Vicent, V. et al. (2014). Pectin modifications and the role of pectin-degrading enzymes during postharvest softening of Jonagold apples. Food Chemistry, 158, 283-291. http://dx.doi.org/10.1016/j.foodchem.2014.02.138
dc.identifier 0308-8146
dc.identifier http://hdl.handle.net/20.500.11810/3145
dc.identifier 10.1016/j.foodchem.2014.02.138
dc.identifier.uri http://hdl.handle.net/20.500.11810/3145
dc.description Full text can be found at the following link http://www.sciencedirect.com/science/article/pii/S0308814614003239
dc.description This study aimed at understanding softening in Jonagold apple (Malus × domestica Borkh.) fruits, by investigating pectin modifications and the evolution of pectin-modifying enzymes during postharvest storage and ripening. Jonagold apples were harvested at commercial maturity and stored at different temperatures and controlled atmosphere conditions for 6 months, followed by exposure to ambient shelf life conditions (20 °C under air) for 2 weeks. The composition of the pectic material was analysed. Furthermore, the firmness and the ethylene production of the apples were assessed. Generally, the main changes in pectin composition associated with the loss of firmness during ripening in Jonagold apples were a loss of side chains neutral sugars, increased water solubility and decreased molar mass. Also, the activities of four important enzymes possibly involved in apple softening, β-galactosidase, α-arabinofuranosidase, polygalacturonase and pectin methylesterase, were measured. Pectin-related enzyme activities highly correlated with ethylene production, but not always with pectin modifications.
dc.language en
dc.publisher Applied Science Publishers
dc.subject Cell wall-modifying enzymes
dc.subject Controlled atmosphere
dc.subject Firmness
dc.subject Malus×domestica
dc.subject Pectin
dc.title Pectin modifications and the Role of Pectin-degrading Enzymes during Postharvest Softening of Jonagold Apples
dc.type Journal Article, Peer Reviewed


Files in this item

Files Size Format View

There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record

Search COSTECH


Advanced Search

Browse

My Account