Physiology and quality response of harvested banana fruit to cold shock

Zhang, Haiyan, Yang, Shaoyu, Joyce, Daryl C., Jiang, Yueming, Qu, Hongxia and Duan, Xuewu (2010) Physiology and quality response of harvested banana fruit to cold shock. Postharvest Biology and Technology, 55 3: 154-159. doi:10.1016/j.postharvbio.2009.11.006


Author Zhang, Haiyan
Yang, Shaoyu
Joyce, Daryl C.
Jiang, Yueming
Qu, Hongxia
Duan, Xuewu
Title Physiology and quality response of harvested banana fruit to cold shock
Journal name Postharvest Biology and Technology   Check publisher's open access policy
ISSN 0925-5214
1873-2356
Publication date 2010-03
Year available 2009
Sub-type Article (original research)
DOI 10.1016/j.postharvbio.2009.11.006
Volume 55
Issue 3
Start page 154
End page 159
Total pages 6
Place of publication Amsterdam, Netherlands
Publisher Elsevier BV
Collection year 2011
Language eng
Formatted abstract
Experiments were conducted to examine softening and quality responses of harvested banana fruit to cold shock treatment intended to extend shelf-life. Fruit were immersed in ice-water for 1 h, then treated with or without 100 μL L-1 ethylene for 24 h at 24 °C, and finally stored at 20 °C. Fruit firmness, chlorophyll content, ethylene production, respiration rates, contents of pectin, starch and sugar, and the activities of the cell wall modifying enzymes polygalacturonase (PG), pectin methylesterase (PME) and CMCase (cellulase, endo-1,4-β-glucanase) were analyzed. Total amylase activity was also measured. Immersion in ice-water for 1 h effectively inhibited ripening-associated processes, including peel de-greening and pulp softening during storage or ripening. The delay in ripening was also manifest in reduced ethylene production and respiration rates. The inhibition of softening by cold shock treatment was related to decreased PG and PME activities, that is, retardation of pectin solubilization/degradation. Reduced activities of CMCase and total amylase and conversion of starch to sugar by ice-water immersion also contributed to the delay in softening of harvested banana fruit.
© 2009 Elsevier B.V.
Keyword Banana
Cold shock treatment
Postharvest life
Softening
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Available online 11 December 2009

Document type: Journal Article
Sub-type: Article (original research)
Collections: 2010 Higher Education Research Data Collection
School of Agriculture and Food Sciences
 
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Created: Sun, 28 Feb 2010, 00:01:14 EST