410 nm (95.5%) and 470 nm (96.3%) was achieved, respectively.
The excess IL phase was subjected to wash with water due to the
limited solubility of IL in water [20]. The result indicated that the
loss of Monascus pigments into the Wm phase was only occurred
in the first run of Winsor I microemulsion extraction due to the solubilization
of Monascus pigments in theWm phase (Fig. 2B). The loss
of Monascus pigments became nearly negligible by further Winsor I
microemulsion extraction, which also indicated that the contaminated
nonionic surfactant in the excess IL phase was very limited
after the first run of Winsor I microemulsion extraction