Process for preparing lutein

Abstract

The present invention is the technological process of preparing corporin with marigold flower as material. The technological process includes producing marigold flower into dry grains, repeated extraction with solvent, decompression concentration, eliminating residual to obtain mixture paste of lutein resin and propylene glycol, saponification into carotinoid, washing with acetone, collecting the upper layer of oil phase after letting stand, crystallization and re-crystallization, low temperature drying under protecting nitrogen atmosphere to obtain powder, mixing with antioxidant, dispersing in gelatin solvent, boiling pelletizing and drying to obtain microcapsule corporin product. The product may be used as natural coloring agent for medicine and food products.

Description

Technical field: [0001] The invention relates to a method for preparing natural lutein by taking marigold flowers as raw materials, adopting physical and chemical means, and undergoing extraction, concentration, saponification, washing, crystallization, embedding and drying processes. Background technique: [0002] With the significant improvement of people's living standards, people's requirements for diet, health care products and medicines are becoming more and more stringent. Natural pigments extracted from natural animals and plants are safe, non-toxic, nutritious, and health-care. They are valued by consumers and tend to gradually replace synthetic pigments. Among natural pigments, carotenoids are the most important one. Carotenoids include carotene and lutein. Among them, lutein is a naturally occurring carotenoid that does not exhibit the biological activity of vitamin A. It is widely found in fruits and vegetables. In green vegetables and fruits, such as cabbage...

AI Technical Summary

Problems solved by technology

[0005] At home and abroad, there have been many studies and examples on the preparation of luteinoid natural products for a long time, such as U.S. Patent US005648564A, etc. Although these preparation methods can prepare lutein, the product quality is low, and the feasibility of industrialized mass production It is not strong, and it is difficult to obtain refined medical supplies, food and cosmetic grade products, so the application of progesterone has been limited to the industrial production of feed industry, while the industrial production of progesterone for health care products and pharmaceuticals has been in the exploratory stage and laboratory scale