Study on the saponification of astaxanthin oil by single factor and orthogonal experiments
The saponification conditions of the crude astaxanthin oil were optimized with dichloromethane as the solvent by single factor and orthogonal experiments.When the temperature is 10℃,the time is 60 min,and the volume ratio of the sol-vent to the saponification solution is 1:2,the free astaxanthin with a purity of 96%after column separation on silica gel us-ing a 3 mg/mL NaOH-methanol saponification solution was obtained.The product was characterized by IR,NMR and mass spectrum analysis.
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