The present invention pertains to a process of improving the total yield of curcuminoids
from curcuminoid-containing material. More specifically, there is provided a process
wherein a second residue, previously considered a waste resulting from a crystallisation
step of a curcuminoid-containing phase, is made useful by improving the coloring
properties of this second residue by extraction with hexane and/or methanol at
ambient temperature. The pro??cess improves the total yield of curcuminoids by 30-40%.