3.1.3.2. Mixture contour plot of total flavonoids content (TFC).
Flavonoids are polyphenols with diphenylpropane (C6C3C6) skeletons.
They are considered to be the largest group of naturally occurring phenols (Vijayakumar et al., 2008).
In general, flavonoids structures are less polar compared with
phenolic acid. The result of Fig. 2 revealed that the contents of raw
flavonoids extract also increases with the concentration of acetone.