Figure 2.
Structures of phenolic acids: (A) p-hydroxybenzoic acid; (B) caffeic acid; (C) chlorogenic acid; and (D) the basic chemical structure of anthocyanins.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.