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Authentication and quantitative analysis on the chemical profile of cassia bark (cortex cinnamomi) by high-pressure liquid chromatography.
It is suggested that five characteristic peaks by HPLC are suitable for distinguishing genuine cassia bark from the adulterants and could be applied in the quality control of this commodity.
Antimalarial Constituents from Nauclea orientalis (L.) L.
Bioassay‐guided fractionation of the antimalarial‐active CHCl3 extract of the dried stem of Nauclea orientalis (L.) L. (Rubiaceae) has resulted in the isolation of two novel tetrahydro‐β‐carboline
Complete NMR assignments of the antibacterial biflavonoid GB1 from Garcinia kola.
From the antibacterial fraction of the roots of Garcinia kola, 3'',4',4''',5,5'',7,7''-heptahydroxy-3,8''-biflavanone (GB1) was isolated as the major constituent, whose interesting conformations were
Anti-oxidative activity of glycosides from Ligustrum sinense
Three active glycosides that afford protection to red blood cell membrane to resist hemolysis induced by a peroxyl radical initiator, 2,2′-azo-bis-(2-amidinopropane) dihydrochloride (AAPH) were
Antioxidative glycosides from the leaves of Ligustrum robustum.
Phytochemical investigation of the ethanol extract of the leaves of Ligustrum robustum led to the isolation of three new glycosides, ligurobustosides M, N, and O, which showed stronger antioxidant effects than the standard, trolox.