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The combined treatment of broccoli florets with kojic acid and calcium chloride maintains post-harvest quality and inhibits off-odor production

文献类型： 外文期刊

作者： Yan, Zhicheng 1 ; Shi, Junyan 1 ; Gao, Lipu 1 ; Wang, Qing 1 ; Zuo, Jinhua 1 ;

作者机构： 1.Beijing Acad Agr & Forestry Sci, Beijing Vegetable Res Ctr,Key Lab Biol & Genet Im, Beijing Key Lab Fruit & Vegetable Storage & Proc, Key Lab Urban Agr North,Key Lab Vegetable Posthar, Beijing, Peoples R China

关键词： Broccoli; Antioxidant enzymes; Chlorophyll-degradation; Gene expression

期刊名称：SCIENTIA HORTICULTURAE （ 影响因子：3.463； 五年影响因子：3.672 ）

ISSN： 0304-4238

年卷期： 2020 年 262 卷

页码：

收录情况： SCI

摘要： The effect of a combination of 25 mg L-1 kojic acid and 10 g L-1 calcium chloride (KA + CaCl2) on the postharvest senescence of broccoli was investigated, along with potential modes of action. Results indicated that the KA + CaCl2 treatment of broccoli florets maintained their sensory evaluation scores, inhibited yellowing of florets, and generally prolonged shelf-life. The KA + CaCl2 treatment decreased the rate of respiration, ethylene production, and inhibited the degradation of chlorophyll. Furthermore, the relative gene expression and enzyme activity of ascorbate peroxidase, peroxidase, and catalase were elevated, and the expression of genes (BoCHL1, BoCHL2, BoCHL3, BoPAO, and BoPPH) involved in chlorophyll degradation were down-regulated. KA + CaCl2 also maintained the production of the characteristic volatiles produced by broccoli florets as measured with the use of an electronic nose. Results of the present study provide new insights into the ability of KA + CaCl2 to inhibit the postharvest senescence of broccoli florets and extend their shelf-life.

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