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  • Title: Antioxidant compounds from ethanol extracts of bamboo (Neosinocalamus affinis) leaves.
    Author: Luo GY, Luo YG, Zhou R, Zhou M, Gu J, Ye Q, Dai Y, Zhang GL.
    Journal: J Asian Nat Prod Res; 2015; 17(3):248-55. PubMed ID: 25424560.
    Abstract:
    Activity-guided fractionation of Neosinocalamus affinis leaves led to obtain two new flavonoids, 4'-O-((7″R,8″S)-8″-guaiacylglyceryl)-pleioside B (9) and apigenin 6-C-β-d-fucopyranosyl-7-O-β-d-glucopyranoside (10) along with eight known compounds. Their structures were elucidated on the basis of spectroscopic data (UV, IR, NMR, and MS). Among these 10 compounds, farobin A (4) and isoorientin (7) showed significant antioxidant activity evaluated by 1,1-diphenyl-2-picrylhydrazyl, 2,2'-azinobis(3-ethylbenzothiazoline-6-sulfonic acid), superoxide anion and nitric oxide (NO) radical-scavenging assays.
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