High amount of radical scavenger eluted from the C. grandiflora
FD water extract at approximately 35.9 min. Radical scavengers
may also be observed in the chromatogram of FD extract, one of
the strongest radical scavengers was identified as salvianolic acid
C, which possessed a very high RSC (30.4% of total area of the
peaks). In LC–MS spectra its peak produced m/z 491 and characteristic
fragmentation at m/z 311.