A targeted analysis of flavonoids in asparagus using the UPLC-MS technique
Ming Zhang | Guihong Zhao | Guisheng Zhang | Xinyang Wei | Mingxia Shen | Liping Liu | Xiangying Ding | Yong Liu
Production development for asparagus has become an important research subject due to its low shelf life. In order to determine the content of flavonoids in asparagus tips and shoots, LC-MS-based method was performed for a targeted analysis of flavonoids in asparagus, and 34 peaks attributed to the targeted flavonoids were characterised. Twelve peaks corresponding to rutin, isoquercitrin, quercetin, naringin, taxifolin, vitexin, genistin, daidzein, luteolin, chrysin, and kaempferide were identified and quantified from the asparagus tips and shoots by the LC-MS-based detection with monitoring of parent/daughter ions. The results showed that rutin (> 99%) was the main flavonoid present in the asparagus tips and shoots. Although the tips and shoots contained almost similar compounds, the content of the major compounds, especially rutin, was significantly different. Therefore, the method established through this study could be used for quantitative analysis of flavonoids, especially rutins, in asparagus. The result will provide a theoretical basis for food development in asparagus.
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