A comparative metabolomics analysis of phytochemcials and antioxidant activity between broccoli floret and by-products (leaves and stalks)
文献类型： 外文期刊
作者： Zhao, Yaqi 1 ; Zhang, Yanli 1 ; Yang, Haixia 2 ; Xu, Zhenzhen 2 ; Li, Zhansheng 1 ; Zhang, Zhanquan 1 ; Zhang, Wenyuan 1 ; Deng, Jianjun 1 ;
作者机构： 1.Chinese Acad Agr Sci, Inst Vegetables & Flowers, State Key Lab Vegetable Biobreeding, Beijing 100081, Peoples R China
2.China Agr Univ, Coll Food Sci & Nutr Engn, Beijing 100083, Peoples R China
3.Chinese Acad Agr Sci, Inst Qual Stand & Testing Technol Agroprod, Key Lab Agrofood Safety & Qual, Minist Agr & Rural Affairs, Beijing 100081, Peoples R China
关键词： Broccoli; By-products; Metabolomics; Phytochemicals; Antioxidant activity
期刊名称：FOOD CHEMISTRY （ 影响因子：8.8； 五年影响因子：8.6 ）
ISSN： 0308-8146
年卷期： 2024 年 443 卷
页码：
收录情况： SCI
摘要： Leaves and stalks, which account for about 45% and 25% of broccoli biomass, respectively, are usually discarded during broccoli production, leading to the waste of green resources. In this study, the phytochemical composition and antioxidant capacity of broccoli florets and their by-products (leaves and stalks) were comprehensively analyzed. The metabolomics identified several unique metabolites (e.g., scopoletin, Harpagoside, and sinalbin) in the leaves and stalks compared to florets. Notably, the leaves were found to be a rich source of flavonoids and coumarins, with superior antioxidant capacity. The random forest model and correlation analysis indicated that flavonoids, coumarin, and indole compounds were the important factors contributing to the antioxidant activity. Moreover, the stalks contained higher levels of carbohydrates and exhibited better antioxidant enzyme activity. Together, these results provided valuable data to support the comprehensive utilization of broccoli waste, the development of new products, and the expansion of the broccoli industry chain.
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