ZHANG Xin, LI Jian-kuan, ZHAO Yu-jing, et al. Analysis of Chemical Constituents in Codonopsis Radix and Its Antioxidant Activities[J]. Chinese journal of experimental traditional medical formulae, 2018, 24(24): 53-59.
ZHANG Xin, LI Jian-kuan, ZHAO Yu-jing, et al. Analysis of Chemical Constituents in Codonopsis Radix and Its Antioxidant Activities[J]. Chinese journal of experimental traditional medical formulae, 2018, 24(24): 53-59. DOI: 10.13422/j.cnki.syfjx.20182105.
Objective: To study on the chemical constituents in Codonopsis Radix
and to investigate their in vitro antioxidant activities of isolated compounds. Method: The chemical constituents were isolated and purified by D101 macroporous resin
MCI resin
silica gel
octadecyl silane bonded silica(ODS)
Sephadex LH-20 column chromatography and preparative silica gel thin layer chromatography.Nuclear magnetic resonance(NMR) and mass spectrometry(MS) were used to elucidate the structures of obtained compounds.The antioxidant effects of isolated compounds were evaluated by radical scavenging ability of 1
1-diphenyl-2-picrylhydrazyl(DPPH)
2
2'-azinobis-(3-ethylbenzthiazoline-6-sulphonate)(ABTS) and superoxide anion with vitamin C as positive control. Result: Seven compounds were obtained and identified as 7R/7S