For comparison
of extraction yield of capsaicinoids and red pigments from FRPs
(new methods) with that from DRPs (conventional methods), a
simulative industrial extraction process of red pigments was
carried out with a Soxhlet extractor using hexane as solvent according
to the previous literatures (Bae et al., 2012; Sang et al.,
2008). The extraction had been gone along until the red colorants
are exhausted for about 6 h. After removal of solvent, the
oleoresin were obtained. Then the contents of capsaicinoids and
red pigments were assayed, respectively. And the results were
shown in Table 4.