vents and solvent mixtures used for the extraction of
total flavanols, the mixture of EtOAC and water (17:3
v/v) was found to be the most e€ective. Extraction with
MeOH gave maximum yield of the extract but with a
lower content of total flavanols. Yields of extracts in
EtOAc:water (17:3) are signi®cantly less than in acetone, methanol, EtOAc and not significantly different
from EtOAc:water (9:1) or EtOAc:water (4:1).