文献类型： 外文期刊

作者： Wang, Ya-Qin ¹ ; Hu, Li-Ping ¹ ; Liu, Guang-Min ¹ ; Zhang, De-Shuang ¹ ; He, Hong-Ju ¹ ;

作者机构： 1.Beijing Acad Agr & Forestry Sci, Beijing Vegetable Res Ctr, Beijing 10097, Peoples R China

关键词： Chinese kale;nutritional quality;metabolomics;Quadrupole-Orbitrap MS/MS

期刊名称：MOLECULES （ 影响因子：4.411； 五年影响因子：4.587 ）

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收录情况： SCI

摘要： Chinese kale (Brassica alboglabra Bailey) is a widely consumed vegetable which is rich in antioxidants and anticarcinogenic compounds. Herein, we used an untargeted ultra-high-performance liquid chromatography (UHPLC)-Quadrupole-Orbitrap MS/MS-based metabolomics strategy to study the nutrient profiles of Chinese kale. Seven Chinese kale cultivars and three different edible parts were evaluated, and amino acids, sugars, organic acids, glucosinolates and phenolic compounds were analysed simultaneously. We found that two cultivars, a purple-stem cultivar W1 and a yellow-flower cultivar Y1, had more health-promoting compounds than others. The multivariate statistical analysis results showed that gluconapin was the most important contributor for discriminating both cultivars and edible parts. The purple-stem cultivar W1 had higher levels of some phenolic acids and flavonoids than the green stem cultivars. Compared to stems and leaves, the inflorescences contained more amino acids, glucosinolates and most of the phenolic acids. Meanwhile, the stems had the least amounts of phenolic compounds among the organs tested. Metabolomics is a powerful approach for the comprehensive understanding of vegetable nutritional quality. The results provide the basis for future metabolomics-guided breeding and nutritional quality improvement.