Fig. 1.
HPLC chromatograms of (A) standards and (B) POE. Peaks: (1) protocatechuic acid; (2) taxifolin; (3) quercetin.
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.