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The regulatory effect of slightly acidic electrolyzed water ice on the postharvest quality decline and glucosinolate metabolism of broccoli

文献类型： 外文期刊

作者： Han, Ying 1 ; He, Xue 1 ; Luo, Shufen 1 ; Hu, Huali 1 ; Li, Pengxia 1 ;

作者机构： 1.Jiangsu Acad Agr Sci, Inst Agr Facil & Equipment, Nanjing 210014, Jiangsu, Peoples R China

2.Yantai Nanshan Univ, Hlth Coll, Yantai 265700, Shandong, Peoples R China

3.Shenyang Agr Univ, Food Sci Coll, Shenyang 110866, Peoples R China

关键词： Chlorophyll; Glucoraphanin; Glucobrassicin; Myrosinase; Sulforaphane

期刊名称：POSTHARVEST BIOLOGY AND TECHNOLOGY （ 影响因子：6.4； 五年影响因子：6.9 ）

ISSN： 0925-5214

年卷期： 2024 年 215 卷

页码：

收录情况： SCI

摘要： Here, the impact of 300 mg L-1 slightly acidic electrolyzed water ice (SAEWI) on postharvest senescence, glucosinolate and sulforaphane contents, and the expression levels of key genes in the glucosinolate metabolic pathway in broccoli was investigated. Results indicated that SAEWI delayed yellowing senescence by slowing the decline of chlorophyll content. Moreover, SAEWI upregulated the expression of genes involved in aliphatic and indole glucosinolate synthesis. Specifically, after 1 d of shelf life, the SAEWI-treated group exhibited 1.01-1.96 times higher expression levels of BoMYB28, BoSUR1, BoST5, BoMYB51, BoCYP79B2, and BoCYP83B1 compared to the control group. Similarly, the expression levels of BoCYP79F1, BoUGT74B1, and BoFMOGS-OX2 were 2.51-8.67 times higher in the SAEWI-treated group. Consequently, the SAEWI treatment resulted in elevated concentrations of glucoraphanin, glucoiberin, and 4-Methoxy-glucobrassicin, contributing to an overall increase of more than 40% in the total glucosinolate content. Additionally, the expression level of BoMYR in the SAEWItreated group exceeded that of the control group after 1 d of shelf life, accompanied by enhanced myrosinase activity. These changes led to higher sulforaphane content in the SAEWI-treated group, which was found to be 2.65-4.33 times higher than that of the control group. In conclusion, the findings suggest that SAEWI treatment in the cold chain circulation model not only delays postharvest quality decline but also boosts the accumulation of active substances in broccoli.

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