XXXX composition and antioxidant capacity of three Lysimachia species.

@entity3978 @entity16376 @entity3096 @entity14627 @entity71794 @entity41461 @entity71793 @entity3092 @entity13259 @entity15
The @entity3978 composition and antioxidant properties of three Lysimachia species (L. nummularia L., L. vulgaris L. and @entity71793 L.) and their column chromatographic fractions were investigated. The antioxidant activity of herb extracts and 54 different column chromatographic fractions was evaluated using in vitro DPPH and @entity16376 decolorization tests. The total @entity3978 content was determined by spectrophotometric methods. The phenolic compounds of extracts of different Lysimachia species and their bioactive fractions were characterized by online chromatographic methods. For identification of the compounds, UV spectral data, accurate molecular mass and formula, as well as @entity15 and fragmentation patterns given by LC-DAD-ESI/ @entity15 / @entity15 and LC-ESI- TOF analyses were used. Quantification of the compounds was performed by LC-DAD using an external standard method. In the extracts, @entity14627 derivatives, @entity13259 , free flavonoid aglycones, and 11 various flavonoid glycosides were identified. @entity3096 composition of Lysimachia extracts showed significant differences. @entity71793 extracts had the strongest DPPH and @entity16376 + radical scavenger activity (IC50=43.3  g/mL and 21.3  g/mL), due to their high @entity41461 and @entity3092 - @entity71794 content. Correlation between @entity3978 content and radical scavenging activity of each column chromatographic fractions is also included.
