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Method for inhibiting foam generation during vacuum concentration of saponin solution

A concentration process and solution technology, applied in the field of production and preparation of saponin-containing solutions, can solve the problems of high price, uncommon reagents, complicated operation, etc., and achieve the effects of suppressing foam, improving extraction rate, and simple operation

Active Publication Date: 2015-09-02
SHANGHAI NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, Chinese patent CN101906129A discloses a compound antifoaming agent prepared by Tween 80 and lauryl phenylacetate in a ratio of 9:1. The reagents used are uncommon and expensive, and the operation is more complicated, and a small amount of antifoaming agent is introduced in the resulting product.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Extraction of Tea Tree Flower Polysaccharide and Saponin

[0020] (1) Tea tree flower pulverization and ultrasonic-assisted extraction: After the tea tree flower is crushed with a pulverizer, according to the material-liquid ratio of tea tree flower: water of 1:20, add boiling water at 100°C for ultrasonication for 15 minutes, and then heat and micro-boil for extraction After 30 minutes, filter while hot, collect the filtrate, add boiling water to the filter residue, leach in the same way, filter while hot, and combine the two filtrates. The filtrate was cooled and centrifuged.

[0021] (2) Foam suppression treatment: take 1 / 3-1 / 4 of the supernatant obtained after filtration and centrifugation in the previous step, add 2% n-octanol, and mix well.

[0022] (3) Concentration under reduced pressure: Put it in a vacuum rotary evaporator, and concentrate under reduced pressure to 1 / 6 volume under the conditions of a rotation speed of 50r / min and a temperature of 50°C; then ...

Embodiment 2

[0026] Extraction of tea polysaccharide and saponin

[0027] (1) Tea pulverization and ultrasonic-assisted leaching: After pulverizing the tea leaves with a pulverizer, add 100°C boiling water for ultrasonication for 15 minutes at a material-to-liquid ratio of 1:20 for tea: water, then heat with medium heat and boil for 30 minutes. Filtrate hot, collect the filtrate, add boiling water to the filter residue, leach in the same way, filter while hot, and combine the two filtrates. The filtrate was cooled and centrifuged.

[0028] (2) Foam suppression treatment: take 1 / 3-1 / 4 of the supernatant obtained after filtration and centrifugation in the previous step, add 1% n-octanol, and mix well.

[0029] (3) Concentration under reduced pressure: Put it in a vacuum rotary evaporator, and concentrate under reduced pressure to 1 / 6 volume under the conditions of a rotation speed of 50r / min and a temperature of 50°C; then add an equal volume of supernatant, and add 5ml Defoamer, continue ...

Embodiment 3

[0033] A kind of method that suppresses the foam generation of saponin-containing solution decompression concentration process, adopts following steps:

[0034] (1) Treatment of saponin-containing samples and ultrasonic-assisted extraction: After pulverizing the tea leaves with a pulverizer, mix them with 100°C boiling water at a material-to-liquid ratio of 1:20 and shake them evenly, put them in an ultrasonic machine and ultrasonicate for 10 minutes, Then leaching for 20-30min at medium heat and microboiling, while hot, filter with nylon gauze, and collect the filtrate. Repeat the above operation once again for the filter residue, combine the two filtrates, centrifuge at 5000r / min for 10min after cooling, and take the supernatant;

[0035](2) Anti-foaming treatment: take 1 / 3 volume of the supernatant, add 1v / v% antifoaming agent n-heptanol, and fully mix;

[0036] (3) Concentration: Put it in a vacuum rotary evaporator and concentrate under reduced pressure to 1 / 4 volume; 0...

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Abstract

The invention relates to a method for inhibiting foam generation during vacuum concentration of a saponin solution. The method includes the steps of saponin sample (for example, tea leaves, tea flowers, digitalis purpurea and scilla scilloides) treatment, ultrasonically-assisted extraction, centrifugation after filtering, foam inhibition, vacuum concentration, ethanol precipitation and freeze drying. The method has the advantages that by the aid of a foam inhibition technology, the technical problem that concentration cannot be conducted due to the fact that foam is easily generated during vacuum concentration of the saponin solution can be solved, added non-poisonous defoamers are harmless to human body health, and the defoamers and impurities in precipitate can be removed by adding a small quantity of water to redissolve the precipitate and precipitating by ethanol; the method is simple in technology, higher in extraction rate, free from pollution and easy to recover solvents.

Description

technical field [0001] The invention relates to a production and preparation process of a saponin-containing solution, in particular to a method for suppressing foam generation in the process of reducing pressure and concentrating a saponin-containing solution. Background technique [0002] Tea tree flowers are the reproductive organs of tea trees, and tea leaves are the nutritional organs of tea trees. At present, the total area of ​​tea gardens in my country is 1.5 million hectares, with an annual output of more than 1.7 million tons of tea tree flowers and 1.95 million tons of tea leaves. Modern studies have found that tea tree flowers and tea leaves contain a large amount of polysaccharides, saponins, proteins, tea polyphenols and other substances. Tea polysaccharides have antioxidant effects such as lowering blood sugar, lowering blood lipids, enhancing immunity, lowering blood pressure, etc. In recent years, it has been found that tea polysaccharides also have the effe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08B37/00C07H15/256C07H1/08
Inventor 魏新林程利增王元凤
Owner SHANGHAI NORMAL UNIVERSITY
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