Method for refining capsanthin by enzyme catalysis, esterification and molecular distillation
A technology of capsanthin and molecular distillation, which is applied in the field of natural organic chemistry, can solve the problems of by-products that cannot be directly used, difficult degassing, high distillation temperature, etc., and achieves the effects of low production cost, simple process and high product content
Active Publication Date: 2012-08-01
SOUTH CHINA UNIV OF TECH
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The invention discloses a method for refining capsanthin by enzyme catalysis, esterification and molecular distillation. The method comprises the following steps of: mixing chili red oil resin and a degumming agent in a mass ratio of 1:1-1:10, stirring uniformly at the temperature of between 20 and 60 DEG C and at the speed of 100 to 800 revolutions per minute, and standing or intermittently stirring and settling at the temperature of between 0 and 5 DEG C; after settling for 5 to 20 hours, filtering under a vacuum condition to obtain filtrate, and separating the filtrate to obtain a degummedpigment solution; adding lipase and water into the degummed pigment solution, mixing uniformly, and reacting at the temperature of between 30 and 60 DEG C under stirring at the speed of 50 to 300 revolutions per minute; after reacting for 2 to 10 hours, dehydrating for 1 to 3 hours; filtering out the lipase, and reclaiming a solvent from the pigment solution under reduced pressure to obtain a fatty acid ester solution containing the capsanthin; and performing two-stage molecular distillation on the fatty acid ester solution to obtain the capsanthin with high color value. The method has the advantages of simple process, high product content, few insoluble acetone substances and low production cost, and is suitable for industrialized production.
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