Figure 3

Color stability of the purified analytical grade C-PE in different preservative solutions: (1) citric acid, (2) calcium chloride, (3) sucrose, (4) sodium chloride, and (5) water (control) after storing for 7 days at 4 °C.
Color stability of the purified analytical grade C-PE in different preservative solutions: (1) citric acid, (2) calcium chloride, (3) sucrose, (4) sodium chloride, and (5) water (control) after storing for 7 days at 4 °C.