HPLC-Fingerprints and Antioxidant Constituents of Phyla nodiflora
Figure 2
Lineweaver-Burk plot of tyrosinase inhibition of (a) onopordin (4) and (b) eupafolin (7) with various concentrations of tyrosine. (a) (◆) Without onopordin, (■) 10 M of onopordin, (▲) 60 M of onopordin, and () 100 M of onopordin. (b) (■) Without eupafolin, (▲) 28 M of eupafolin, () 56 M of eupafolin, and (◆) 112 M of eupafolin. Data are presented as mean SD of three independent experiments.
