Antioxidant Activity of Pine Bark Constituents

b) SEM image of Sample 2 (archaeological birch bark, middle section, ice patch) radial cross-section, extensive degradation of thin cell walls; c) SEM image of Sample 4

Column chromatography of fraction B over silica gel followed by Sephadex LH- 20 and eluting with a gradient of CH 2 Cl 2 -MeOH and then pure MeOH afforded again compound 5 and

Through evaluation of hydroxyl radical and superoxide anion radical scavenging activities, respectively, it was demonstrated that AE-PA had good antioxidant activity, which

Through evaluation of hydroxyl radical and superoxide anion radical scavenging activities, respectively, it was demonstrated that AE-PA had good antioxidant activity, which

They exhibited substantial inhibition of cell growth against human cervix adenocarcinoma (HeLa), hepatocellular carcinoma (HepG-2), and breast adenocarcinoma (MCF-7)

The cytotoxicity of the three isolated phyto- ecdysteroids, of doxorubicin (as positive control), and of the individual extracts was tested against HeLa, HepG-2, and MCF-7 cell

The protection of BODIPY by glutathione can be ascribed mainly to scavenging of AAPH-derived radicals inside the liposome before they reach the liposomal membrane, reactions (7)

ether- ethyl acetate (5:5), was subjected to column chromatography over silica gel using various mixtures of pet.. ether and