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首页> 外文期刊>Journal of Agricultural and Food Chemistry >A comparative study of flavonoid compounds, vitamin C, and antioxidant properties of baby leaf Brassicaceae species
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A comparative study of flavonoid compounds, vitamin C, and antioxidant properties of baby leaf Brassicaceae species

机译：幼叶十字花科植物类黄酮化合物，维生素C和抗氧化性能的比较研究

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A comparative study of antioxidant compounds, flavonoids and vitamin C, and also antioxidant activity was carried out in four species of Brassicaceae vegetables used for salads: watercress (Nasturtium officinale R. Br.), mizuna [Brassica rapa L. subsp. nipposinica (L.H. Bailey) Haneltand], wild rocket [Diplotaxis tenuifolia (L.) DC.], and salad rocket [Eruca vesicaria (L.) Cav]. The characterization of individual phenolic compounds by HPLC-DAD-MS/MS-ESI in watercress and mizuna completes the polyphenol study previously reported for wild rocket and salad rocket. The qualitative study of flavonoids in watercress leaves showed a characteristic glycosylation pattern with rhamnose at the 7 position. lsorhamnetin 3,7-di-O-glucoside was identified in mizuna leaves and may be considered a chemotaxonomical marker in some B. rapa subspecies. Brassicaceae species showed differences in the quantitative study of flavonoids, and the highest content was detected in watercress leaves. Watercress and wild rocket leaves had the highest content of vitamin C. The antioxidant activity evaluated by different methods (ABTS, DPPH, and FRAP assays) showed a high correlation level with the content of polyphenols and vitamin C. In conclusion, the Brassicaceae leaves studied, watercress, mizuna, wild rocket, and salad rocket, presented a large variability in the composition and content of antioxidant compounds. These baby leaf species are good dietary sources of antioxidants with an important variability of bioactive compounds.
机译：在四种用于沙拉的十字花科蔬菜中进行了抗氧化剂，类黄酮和维生素C以及抗氧化活性的比较研究：豆瓣菜（Nasturtium officinale R. Br。），水z菜（Brassica rapa L. subsp。）。 nipposinica（L.H. Bailey）Haneltand]，野生火箭[Diplotaxis tenuifolia（L.）DC。]和色拉火箭[Eruca vesicaria（L.）Cav]。通过HPLC-DAD-MS / MS-ESI在豆瓣和水豆中对单个酚类化合物进行表征，完成了先前报道的有关野生火箭和色拉火箭的多酚研究。定性的豆瓣叶中黄酮类化合物的定性研究显示了特征性糖基化模式，其中鼠李糖位于7位。在水z叶中鉴定出了异黄酮内酯3,7-di-O-葡萄糖苷，在某些B. rapa亚种中可能将其视为化学分类标记。十字花科物种在黄酮类化合物的定量研究中存在差异，豆瓣叶中的含量最高。豆瓣和野火箭叶中的维生素C含量最高。通过不同方法（ABTS，DPPH和FRAP分析）评估的抗氧化活性与多酚和维生素C的含量具有高度相关性。总之，研究的十字花科叶，西洋菜，水牛，野火箭和色拉火箭在抗氧化剂化合物的组成和含量方面存在很大差异。这些幼叶物种是抗氧化剂的良好饮食来源，具有重要的生物活性化合物变异性。

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