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.
Evolution of color intensity (a), and tonality and total polyphenol index (b), during the ageing on lees. W—control wine; WL—wine with lees; WLS—wine with sonicated lees; WC—wine with oak chips; WCL—wine with lees and oak chips; WCLS—wine with sonicated lees and oak chips. Mean ± standard deviation of three replicates. Different letters in axes X indicate values with statistical significant differences (p < 0.05).
