A rapid capillary electrophoresismethod has been developed for the determination of eleven bioactive flavonoids in bee propolis:acacetin,apigenin,cinnamic acid,galangin,ferulic acid,hesperidin,luteolin,naringenin,quercetin,resveratrol,and rutin.

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A high-performance liquid chromatographic method for the simultaneous separation and determination of aryltetralin lignans and flavonoids in Podophyllum emodi Wall.var. chinesis Sprague was developed. The separation was performed on a Kromasil-C 18 column by gradient elution with phosphate buffer-methanol (0-13min, 50∶50, 33min, 30∶70) as mobile phase at a flow-rate of 0.8 ml/min, with detection 270nm.

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In this study, we found that both naringin and quercetin promote the proliferation and differentiation of the osteoblasts.

研究發(fā)現(xiàn)：柚皮甙及槲皮素可促進(jìn)骨母細(xì)胞的增生和分化一级A片免费视频国产对白，但在較高濃度下（10 mg/ml）對蝕骨細(xì)胞也呈促進(jìn)作用播播午夜。

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The rate constants of the reactions of α-hydroxyl ethyl peroxyl radicalwith quercetin, ruitn, catechin and baicalin were determined through pulse radiolysisstudies to be 〓,〓,〓〓 and 〓, respectively.

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Specializing in natural plant research and development, production, sales and biosynthesis of the high-tech enterprise as a whole, the existing products: ursolic acid, luteolin, kaempferol, shikimic acid, salicylaldehyde glycosides, genistein, nuciferine , matrine, oxymatrine, quercetin ...

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