significant differences with the Rakotomalala (1992) method.
Adsorption with AC proved to be a suitable means to trap CGA
from a complex medium like a green coffee extract obtained either
by alcohol of by hot water extraction. Adsorption of CGA on AC
avoids the use of toxic solvents and is a simple and less timeconsuming
method, and could be used to replace methods using
solvents. This method is a good alternative prior to the
purification of 5-CQA or another single (monomer or dimer)
CGA, which