Preparation method of pure natural ligustrum quihoui carr fruit's anthocyanin

Abstract

A preparation method of pure natural ligustrum quihoui carr fruit's anthocyanin belongs to the technical field of deep-processing of food resources. The invention relates to a solvent extraction and column chromatography combination technique for purification and preparation of high-purity anthocyanin. The preparation method is characterized by low cost, simple preparation technology, short production cycle, safe and nontoxic reagent, high extraction purity, easy industrial production and the like, and is of great significance for developing high value-added ligustrum quihoui carr fruit products. The prepared ligustrum quihoui carr fruit's anthocyanin with anthocyanin purity being 30-35% is nutritious and safe, is stable, is easy to store, and has a wide application prospect in fields of food, medicine, biochemistry and the like. Through preparation of the anthocyanin product in ligustrum quihoui carr fruit, full utilization of ligustrum quihoui carr fruit is raised, and a ligustrum quihoui carr fruit's anthocyanin purification technology is given attention. Thus, waste ligustrum quihoui carr fruit is changed into valuable things, providing powerful guarantee for realizing economic value of the ligustrum quihoui carr fruit.

Description

technical field [0001] The invention belongs to the technical field of deep processing of food resources, and in particular relates to a preparation method of pure natural privet fruit anthocyanins. Background technique [0002] With the continuous improvement of people's living standards, the pursuit of natural organic substances has also been improved. Non-toxic and harmless substances of natural plant origin that protect human health, prevent and cure diseases, are more and more popular among people. However, artificially synthesized anthocyanins have relatively high toxicity and side effects, and the World Health Organization has banned the use of this substance. Therefore the method for purely natural preparation high-purity privet fruit anthocyanins is imminent. [0003] Small-leaved privet (Latin scientific name L.quihoui), also known as small white wax, is an angiosperm, dicotyledonous plant class, and a plant of the genus Ligustrum in the family Oleaceae. It is an...

AI Technical Summary

Problems solved by technology

Among them, the solvent extraction method is simple and fast, but the selectivity is not high, and the purity of the obtained anthocyanins is relatively low; the purity of the anthocyanins obtained by the lead salt precipitation method is relatively high, but the introduction of lead ions leads to poor security of the anthocyanin products. Its application is greatly limited; in the application process of column chromatography, methanol or acetone is commonly used as eluent, and contains more toxic solvent residues; high-speed countercurrent chromatography is mostly used for the preparation of pure anthocyanins, and its application Toxic organic solvents such as n-butanol and isopropyl ketone are often used in the process

[0006] With the continuous improvement of green and pure natural anthocyanin product preparation technology in the field of scientific research, there are almost no relevant patents or papers on the purification of anthocyanin from Ligustrum lucidum fruit at home and abroad.

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