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.
Linear regression (Pearson’s coefficient R2) between antioxidant activity and total polyphenols in organic 3-minutes-brewing coffee (A), conventional 3-minutes-brewing coffee (B), conventional 6-minutes-brewing coffee (C), and conventional 6-minutes-brewing coffee (D).
