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  • Title: Bioactivities of phytochemicals in Araiostegia yunnanensis (Christ).
    Author: Chen L, Xu W, Shao R, Du X.
    Journal: Food Chem; 2015 Nov 01; 186():37-45. PubMed ID: 25976789.
    Abstract:
    The profile and bioactivity of phytochemicals in Araiostegia yunnanensis (Christ) Cop were investigated. The total flavonoids content in A. yunnanensis is about 84.90 mg/g. By means of HPLC-DAD-ESI-MS, the main flavonoids in A. yunnanensis were tentatively identified as myricetin 3-O-rhamnosylglucoside, eriodictyol 7-O-rutinoside, quercetin 3-O-rutinoside, luteolin-7-O-apiosylglucoside, quercetin 3-O-rhamnosylgalactoside, and luteolin 7-O-glucoside. The extract (0.268 mg/ml total flavonoids) from A. yunnanensis showed very strong superoxide anion radical scavenging potential and reducing power, which are higher than those of rutin (0.25 mg/ml). The extract (0.268 mg/ml total flavonoids) from A. yunnanensis exhibited similar DPPH scavenging activity with rutin (0.25 mg/ml). However, rutin (0.25 mg/ml) showed a significantly higher ABTS radical scavenging effect than that of the extract (0.268 mg/ml total flavonoids) from A. yunnanensis. The methanol extract from A. yunnanensis showed obviously cytotoxic effects on A549 cells and it had no effect against acetylcholinesterase.
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