| 摘要 |
PURPOSE:To produce industrially advantageously paprika coloring material of good quality, by selectively removing only deposited fats without denaturing capsanthin fatty acid ester and other esters. CONSTITUTION:Paprika oleoresin is stirred at 50 deg.C or lower in an aq. alkaline soln. in the presence of anions such as halogen, sulfate, carbonate, bicarbonate, phosphate and/or aliph. carboxylate ions, whereby the desired paprika coloring matter can be easily obtd. in a high yield without causing hydrolysis of carotenoid fatty acid ester and separation of an aq. alkaline layer from oleoresin layer. The anions are used at a concn. of a level of satd. amount or below in the aq. alkaline soln. Usually, the alkali-treated system is subjected directly to a filtration stage. The separated solid is thoroughly washed with brine, etc. and, if necessary, dried. |
