to emphasize the difference in recovery efficiency however washing the recovered precipitate using the techniques previously described will result in adequate purities results are shown in table 7 the results show that isopropyl alcohol decreases the amount of time necessary for saponification and increases filtration rates by decreasing the viscosity while experiment b was completely saponified in about 90 minutes experiment a was only about u00bd complete experiment a also experienced foaming issues in both the reaction and in filtering that were not seen with isopropyl alcohol in experiment b an experiment was performed that followed the protocol described in madhavi et al u s pat no 6 380 442 which shows that the teachings of the present invention are needed to produce a quality product with high yields oleoresin orange paprika 40 09 g containing 2 68 zeaxanthin and 4 5 total carotenoids was dissolved in 3 volumes of isopropyl alcohol approximately 120 ml at 65 u00b0 c forming a free flowing solution an aqueous 50 potassium hydroxide solution prepared by combining 3 6 grams of solid potassium hydroxide and 3 6 grams of reverse osmosis grade water was added to the mixture the temperature was maintained for 90 minutes and allowed to cool to room temperature the reaction mixture.