Preparation method of high-stability safflower yellow pigment preparation

By combining sodium dihydrogen phosphate-containing ethanol aqueous solution and silica gel chromatography with metal chelating agents and antioxidants, the problems of impurity removal and stability in the extraction process of safflower yellow pigment were solved, resulting in a high-purity and high-stability safflower yellow pigment preparation.

CN118813068BActive Publication Date: 2026-06-16HAINAN SUPER BIOTECH CO
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HAINAN SUPER BIOTECH CO
Filing Date
2024-06-19
Publication Date
2026-06-16

AI Technical Summary

⚠Technical Problem

Existing technologies for extracting safflower yellow pigment suffer from problems such as poor impurity removal, low recovery rate, poor stability, and insignificant color protection, especially under high temperature and light conditions, which can easily lead to pigment degradation.

⚗Method used

Extraction and purification were carried out using an ethanol-water solution containing sodium dihydrogen phosphate combined with silica gel chromatography. By combining metal chelating agents, antioxidants, and soluble starch as wall materials, a scientific and reasonable preparation method was adopted to improve the retention rate and stability of safflower yellow.

🎯Benefits of technology

It improves the purity and stability of safflower yellow pigment, reduces heat loss during processing, and enhances the stability of the pigment during storage and application, which is in line with the development trend of green food.

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Abstract

The application provides a preparation method of a high-stability safflower yellow pigment preparation, (1) safflower powder is added into an ethanol aqueous solution containing sodium dihydrogen phosphate for extraction, the residue is repeatedly extracted, the filtrates are combined, sodium dihydrogen phosphate is added for dissolution, and the mixture is left to stand, and the upper extraction liquid is concentrated to obtain safflower yellow extract A; (2) the safflower yellow extract A is subjected to silica gel chromatography column elution, and the eluate is collected; (3) the eluate is mixed with a metal chelating agent, an antioxidant protective agent and wall material A, and concentrated to obtain safflower yellow extract B; (4) wall material B in an aqueous solution, safflower yellow extract B and an antioxidant protective agent are mixed and emulsified, and spray drying is carried out to obtain the safflower yellow pigment preparation. In the process of extracting the safflower yellow pigment, the ethanol aqueous solution containing sodium dihydrogen phosphate is combined with silica gel chromatography extraction and purification, which can effectively protect the safflower yellow from degradation in the processing process, reduce the heating time of the safflower yellow in the processing, improve the retention rate of the safflower yellow, and obtain a high-stability, high-color-value safflower yellow powder product.
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