Figure 1.
Sample chromatogram of the D40M fraction of LPE detected by high-performance liquid chromatography. (A) Primary compounds in LPE identified by nuclear magnetic resonance. (B) Compound A is epicatechin C15H14O6 (MW, 290.27) and compound B is procyanidin A2 C30H24O12 (MW, 576.50). LPE, litchi pericarp extract; MW, molecular weight.