Peroxidase as the Major Protein Constituent in Areca Nut and Identification of Its Natural Substrates
Figure 5
Identification of the natural substrates in the areca nut. (a), (b), and (c) Comparison of the MS/MS spectrum of the 290 Da substrate with those of catechin and epicatechin. (d) and (e) Similarity of the MS/MS spectra between the 578 Da substrate and procyanidin B1. (f) The structures of catechin, epicatechin, and procyanidin B1.
