The antioxidative activity was measured on the substances of water and ethanol soluble extract from Astragalus membranaceus Bunge, Chrysanthemum morifolium Ramat. Lycium chinensis Miller, Glvcyrrhiza uralensis Fischer, Angelica gigar Nakai, Zizyphus j...
The antioxidative activity was measured on the substances of water and ethanol soluble extract from Astragalus membranaceus Bunge, Chrysanthemum morifolium Ramat. Lycium chinensis Miller, Glvcyrrhiza uralensis Fischer, Angelica gigar Nakai, Zizyphus jujuba Miller, Paeonia lacticflora Pallas, Cnidium officinale Makino by four different in vitro experimental models of DPPII
(a,a'-diphenyl-,β-picrylhydrazyl) method, superoxide dismutase like activity, thiocyanate method, and TBARS (thiobarbituric acid reactive substances) method. The Lycium chinensis Miller contained the highest amount of polyphenolic compounds. The electron donating ability of water extract from Glyyrrhiza uralensis Fischer and ethanol extract from Chrysanthemum were higher than those of the others. The superoxide dismutase-like activity of water extract from Astragalus membranaceus Bunge was the highest among those of all the others. The water extract from Zizyphus jujuba Miller showed the highest antioxidative activity determined by TBARS method. Compared to the control, the inducing period associated with the oxidation degree was delayed up to 8 days in both the water extract from Chrysanthemum, Lycium chinensis Miller, Glycyrrhiza uralensis Fischer, and Paeonia lactiflora Pallas and the in ethanol extract from Chrysanthemum and Glycyrrhiza uralensis Fischer. These results support that water and ethanol extracts from 8 kinds of medicinal herbs contain antioxidative compounds.