|Table of Contents|

Effects of Chitosan Composite Coating on Storage Quality and Antioxidant System of Blueberry

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2020年24
Page:
97-106
Research Field:
Publishing date:

Info

Title:
Effects of Chitosan Composite Coating on Storage Quality and Antioxidant System of Blueberry
Author(s):
QI Zhaojing; XIA Xiuying
(School of Biological Engineering,Dalian University of Technology,Dalian,Liaoning 116024)
Keywords:
blueberry preservation; chitosan composite coating; pomegranate peel extract; γ-aminobutyric acid; antioxidation
PACS:
-
DOI:
10.11937/bfyy.20200872
Abstract:
‘Duke’ blueberry fruit was taken as test material,the effects of compound coating solution of chitosan,pomegranate peel extract (PPE) and γ-aminobutyric acid (GABA) with different concentrations on blueberry fruit fresh-keeping were studied by orthogonal experiment with decay rate and weight loss rate as evaluation parameters.In order to open up a new idea and provid theoretical and technical support for postharvest storage of blueberry.The results showed that under the condition of (7±1)℃,the optimal formula of blueberry fruit chitosan composite coating agent was 1.5% chitosan,0.6% glycerol,0.5% PPE and 0.02% GABA.The compound coating solution could reduce the weight loss rate and decay rate of blueberry fruit,increased the contents of flavonoids,ascorbic acid and reduced glutathione,and the activities of glutathione reductase (GR) and polyphenol oxidase (PPO),reduced the contents of reactive oxygen species and malondialdehyde (MDA),and achieved the purpose of fresh-keeping,and its comprehensive fresh-keeping effect was better than that of chitosan coating alone and PPE+GABA treatment.

References:

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Last Update: 2021-03-29