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LED irradiation delays the postharvest senescence of garland chrysanthemum (Chrysanthemum carinatum Schousb.)

文献类型： 外文期刊

作者： Zhou, Fuhui 1 ; Gu, Sitong 1 ; Zuo, Jinhua 1 ; Gao, Lipu 1 ; Wang, Qing 1 ; Jiang, Aili 2 ;

作者机构： 1.Beijing Acad Agr & Forestry Sci, Beijing Vegetable Res Ctr, Beijing 100097, Peoples R China

2.Dalian Minzu Univ, Coll Life Sci, Key Lab Biotechnol & Bioresources Utilizat, Minist Educ, Dalian 116600, Peoples R China

关键词： White LED light irradiation; Membrane integrity; Antioxidant activity; Chlorophyll degradation

期刊名称：JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION （ 影响因子：2.431； 五年影响因子：2.347 ）

ISSN： 2193-4126

年卷期： 2019 年 13 卷 4 期

页码：

收录情况： SCI

摘要： In the current study, the effect of white light-emitting diode (LED) light on the postharvest quality of garland chrysanthemum during storage at 20 degrees C was investigated. Results indicated that, compared to the control, LED treatment maintained higher chlorophyll (Chl) content, as well as a lower respiration rate, malondialdehyde content, and polyphenol oxidase activity. The activity of chlorophyll-degrading enzymes, including chlorophyllase, Mg-dechelatase, chlorophyll-degrading peroxidase, and pheophytinase were also lower in the LED-treated plants. Additionally, the activity of antioxidant enzymes, such as peroxidase, catalase, and ascorbate peroxidase were higher in LED-treated plants than in control plants. Results indicated that the LED treatment maintained the quality and prolonged the shelf-life of garland chrysanthemum, and that the mechanism associated with the beneficial effect of LED lighting may be related to the maintenance of membrane integrity, enhancement of antioxidant enzyme activity, and the inhibition of Chl degradation.

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