Variation in antioxidant properties and metabolites during flower maturation of Flos Lonicerae Japonicae flowers
作者： Maorun Fu , Qingli Qu , Hongfei Dai
DOI: 10.1007/S00217-014-2378-6
关键词: DPPH 、 Chlorogenic acid 、 Rutin 、 Flos 、 Food science 、 Caffeic acid 、 Superoxide 、 Stage ii 、 Biochemistry 、 Chemistry 、 Antioxidant
摘要: Antioxidant properties of methanol extracts from Flos Lonicerae Japonicae (FLJ) flowers during maturation were determined with different antioxidant assays, including activity in emulsion system, 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging, superoxide anion scavenging and reducing power. metabolites, such as chlorogenic acid, caffeic rutin, 3,5-O-dicaffeoylquinic acid (3,5-O-diCQA) 3,4-O-diCQA, also identified analyzed by DPPH–HPLC–DAD–TOF/MS method. Significant variation related compounds was observed between maturity stages, the strongest at stage I accompanying highest content compounds. Chlorogenic its derivatives main FLJ flowers, accounting for more than 90 % total bioactive molecules. In summary, bud-developing-stage (stage II) possess functional benefit.
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