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Method for continuous fractional separation and purification of effective ingredients of star anise

A technology for fractional separation of active ingredients, applied in the separation/purification of carboxylic acid compounds, separation/purification of carbonyl compounds, separation/purification of ethers, etc., it can solve the problem that the system is difficult to obtain a high degree of vacuum, destruction of aromatic components, heat exposure Long time and other problems, to achieve the effect of solving waste reuse, easy operation, and improving product yield and content

Inactive Publication Date: 2013-09-25
卢豪良
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0010] (1) Conventional distillation relies on the difference in boiling points of different substances in the material mixture for separation, so the material liquid must be heated to boiling; in the traditional distillation process, due to the long heating time and high temperature, it is easy to cause molecular rearrangement and oxidation , hydrolysis or even polymerization, the aroma components will be destroyed
[0011] (2) Although conventional vacuum distillation can increase the vacuum degree, it will cause certain resistance due to the trays inside it, and it is difficult for the system to obtain a high vacuum degree
At present, there are very few research reports on this new way to obtain shikimic acid by bacterial transformation of star anise industrial extraction residue

Method used

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Embodiment Construction

[0039] (1) Extraction of star anise oil: After the star anise is crushed, it is automatically transported to a multi-functional extraction tank. The ratio of star anise branch and leaf raw materials to water is 1:2, and the ratio of dried fruit raw materials to water is 1:6. The star anise oil is extracted by steam distillation ;

[0040] (2) Star anise oleoresin extraction: add ethanol (concentration is 85% ~ 95%, pH value 6 ~ 7), use organic solid-liquid-liquid multi-stage countercurrent continuous extraction, reverse phase extraction, and then depressurize and low-temperature vacuum concentration and evaporation recovery Solvent, the obtained residue is the crude star anise oleoresin product, and the extraction rate is greater than 40%;

[0041] (3) Separation of anethole and anisaldehyde: Carry out secondary distillation of star anise oleoresin products with molecular distillation technology, the first stage distillation temperature is 55-60°C, pressure is 2-4kPa, feed flo...

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Abstract

The invention discloses a method for continuous fractional separation and purification of effective ingredients of star anise, and relates to purification of a natural product of star anise. The invention provides a method for continuous fractional separation and purification of the effective ingredients of the star anise, which can ensure the extraction efficiency of a target product, has low production operating cost, high solvent recovery rate and obviously low energy consumption, and is suitable for large-scale production. The method comprises the following steps of: extracting star aniseoil; extracting star anise oil resin; separating anethole from anisaldehyde; performing microbial conversion on shikimic acid; and extracting and separating the shikimic acid. On the basis of extracting the star anise oil resin and separating the anethole from the anisaldehyde, the shikimic acid is extracted and separated from extraction residue, products with high added value, such as shikimi fruit, the anethole and the anisaldehyde are obtained, and the extraction efficiency of the target product is ensured.

Description

technical field [0001] The invention relates to the extraction and purification of natural product star anise, in particular to a method for continuous fractionation and purification of star anise active ingredients. Background technique [0002] 1. Star anise oil and star anise oleoresin [0003] The volatile components in star anise are generally aromatic oils, fatty oils and other substances. Fresh or dried star anise fruit is used to extract aromatic oil, which is called fennel oil, anise oil or star anise oil. The extraction methods mainly include steam distillation, organic solvent extraction and supercritical extraction. Star anise oleoresin is a mixture of aromatic oils, fatty oils and resinous substances, and is generally produced by organic solvent extraction. At present, there are few reports about the simultaneous extraction of star anise oil and star anise oleoresin by distillation and extraction. [0004] (1) Steam distillation method. Steam distillation is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C43/215C07C41/42C07C47/575C07C45/82C12P7/42C07C62/32C07C51/42
Inventor 卢豪良叶娟吴鹏健
Owner 卢豪良
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