Fig. 1

3D graphic response-surface optimization of a incorporation efficiency as capsules size (nm) vs. β-cyclodextrin concentration (% w/w), b incorporation efficiency (nm) vs. maltodextrin concentration (% w/w), c incorporation efficiency as capsules size (nm) vs inulin concentration (% w/w), and d effect of the β-cyclodextrin and maltodextrin concentration on the capsules size (nm)