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Method for extracting saponin from hydrolysate with high saponin content

A hydrolyzate, high saponin technology, applied in steroids, organic chemistry and other directions, can solve the problems of inability to reflect high saponin content, extraction time and waste of energy consumption, and achieves low production cost, convenient operation, and solvent reduction. effect of dosage

Inactive Publication Date: 2009-11-11
PEKING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The great increase in saponin content brings great convenience to the extraction of saponin. If the traditional Soxhlet extraction method is still used, it cannot reflect the characteristics of high saponin content. More importantly, it is in terms of extraction time and energy consumption. a great waste

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Take by weighing high saponin content hydrolyzate (by applying for a patent on the same day as the present invention respectively, the title of invention is " the production technology of extracting saponin from turmeric with catalytic solvent method ", " a kind of method for separating lignin from turmeric saponin pulp " and " a kind of high-pressure acid hydrolysis process of turmeric saponin pulp " and other methods obtain, the same below) 2g, place in the reactor, add 20ml120# gasoline then, 120# gasoline and this hydrolyzate are according to volume / weight ratio 10ml / g , and then heated to 70°C, fully stirred and mixed for 30 minutes, then filtered to collect the extract while it was hot, and the extraction residue was extracted once according to the above method, combined the above two extracts, and concentrated to recover solvent gasoline, and the remaining saponin concentrate Place crystallization at room temperature for 2 hours, and finally filter to obtain a sap...

Embodiment 2

[0017] Weigh 4g of hydrolyzate with high saponin content, put it in the reactor, then add 32ml of 120# gasoline, 120# gasoline and the hydrolyzate at a volume / weight ratio of 8ml / g, then heat to 80°C, stir and mix for 40min, Then filter and collect the extract while it is hot, extract the residue once according to the above method, combine the above two extracts, and concentrate and recover the solvent gasoline, the remaining saponin concentrate is placed for crystallization at room temperature for 2 hours, and finally filtered to obtain saponin The product weighs about 3.2g, and the saponin purity is 98%.

Embodiment 3

[0019] Weigh 10g of hydrolyzate with high saponin content, put it in the reactor, then add 90ml of 120# gasoline, 120# gasoline and the hydrolyzate at a volume / weight ratio of 9ml / g, then heat to 75°C, stir and mix for 30min, Then filter and collect the extract while it is hot, extract the residue 2 times according to the above method, combine the above 3 extracts, and concentrate and recover solvent gasoline, the remaining saponin concentrate is placed for crystallization at room temperature for 2 hours, and finally filtered to obtain saponin The product weighs about 7.6g, and the saponin purity is 96%.

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Abstract

The invention discloses a method for extracting saponin from a hydrolysate with high saponin content. The hydrolysate saponin has the content of 60-90% and is obtained respectively by a production process for extracting the saponin from a yellow ginger with a catalytic solvent method, a method for separating lignose from a yellow ginger saponin pulp and a method for preparing saponin from the yellow ginger saponin pulp in a way of high pressure-acid hydrolysis. The gasoline 120# is mixed with the hydrolysate and heated and the like and the specific methods are seen in the specification. The method has the advantages of ensuring the yield of the saponin, shortening the extraction time of the saponin (Soxhlet extraction needs 5-6h and the method needs 1-2h), reducing the dosage of the solvent (the liquid / solid ratio of the Soxhlet extraction is 40-100ml / g and the liquid / solid ratio of the method is 8-15ml / g), reducing the energy consumption for extraction (70-80 DEG C compared to 100 DEG C of continuous circumfluence of the Soxhlet extraction), thereby reducing the production cost of the saponin extraction.

Description

technical field [0001] The invention relates to an extraction method, specifically a method for extracting saponin from a hydrolyzate with a high saponin content. Aiming at the characteristics of high saponin content in the hydrolyzate, a simple dissolution method is used to replace the traditional Soxhlet extraction for saponin extraction. extraction to shorten extraction time and reduce extraction energy consumption. Background technique [0002] As a medicinal plant, turmeric is the most valuable component of diosgenin and its ligand diosgenin. The appearance of saponin is light white powder, no smell, insoluble in water, good solubility in organic solvents, and the pure product has a melting point of 204-207°C. The structure of saponin is similar to that of steroid hormone drugs, so it is an important starting material for the synthesis of steroid hormone drugs. [0003] The traditional turmeric saponin production process is to crush turmeric and ferment it naturally, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07J71/00
Inventor 倪晋仁吴绍祖付东康吴广安周国辉刘美王玉枝
Owner PEKING UNIV
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