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.
ABTS·+ scavenging activity of Costa Rican guava crude extract, and hexane, chloroform, ethyl acetate, and n-butanol fractions. Values are expressed as means ±95% confidence intervals (n = 8) of Trolox equivalent antioxidant capacity (TEAC) (μmol of Trolox per gram of dry extract).
