Legends to the Figures
Figure 1. Oleoresin extraction yield (%) from sorghum grain as a function of extraction condition. The results are expressed as the mean of 3 replicates and standard deviation (bars). The lower and upper superscripts indicate the significant differences between the solvent type for conventional solvent or ball mill-assisted extraction processes, respectively. The Roman numerals show the differences between the type of extraction for each solvent.
Figure 2. FTIR spectra of oleoresins obtained from sorghum grain with different extraction conditions. The arrows indicate bond stretching of interest.
Figure 3. Particle size (A) and zeta potential (B) of oleoresin dispersions from sorghum grain as a function of extraction condition. The results are expressed as the mean of 3 replicates and standard deviation (bars). The lower and upper superscripts indicate the significant differences between the solvent type for conventional solvent or ball mill-assisted extraction processes, respectively. The Roman numerals show the differences between the type of extraction for each solvent.