QI Zhaojing,XIA Xiuying.Effects of Chitosan Composite Coating on Storage Quality and Antioxidant System of Blueberry[J].Northern Horticulture,2020,44(24):97-106.[doi:10.11937/bfyy.20200872]
壳聚糖复合涂膜对蓝莓贮藏品质及抗氧化系统的影响
- Title:
- Effects of Chitosan Composite Coating on Storage Quality and Antioxidant System of Blueberry
- Keywords:
- blueberry preservation; chitosan composite coating; pomegranate peel extract; γ-aminobutyric acid; antioxidation
- 文献标志码:
- A
- 摘要:
- 以‘杜克’蓝莓果实为试材，采用正交实验，以腐烂率和失重率为评价参数，研究了不同浓度配比的壳聚糖（CTS）、石榴皮提取物（PPE）和γ-氨基丁酸（GABA）复合涂膜液对蓝莓果实的保鲜效果，以期为蓝莓采后贮藏保鲜提供参考依据。结果表明：在（7±1）℃条件下，最优的蓝莓果实壳聚糖复合涂膜液配方为1.5%壳聚糖、0.6%甘油、0.5% PPE和0.02% GABA。复合涂膜液能够降低蓝莓果实失重率及腐烂率，提高果实类黄酮、抗坏血酸和还原型谷胱甘肽等抗氧化物质含量及谷胱甘肽还原酶（GR）、多酚氧化酶（PPO）活性，降低活性氧及丙二醛（MDA）含量，达到保鲜的目的，且其综合保鲜效果优于壳聚糖单独涂膜及PPE+GABA处理。
- 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.
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备注/Memo
第一作者简介：齐昭京（1995-），女，硕士研究生，研究方向为采后生物学与技术。E-mail：1306790732@qq.com.责任作者：夏秀英（1972-），女，博士，副教授，现主要从事植物抗逆等研究工作。E-mail：xx47@dlut.edu.cn.收稿日期：2020-03-10