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Extraction method of sapindus saponin

A technology of sapindus saponin and extraction method, which is applied in the direction of steroids, organic chemistry, etc., can solve the problems that affect the normal operation of the unit, the process of solvent residue, the large consumption of solvent, etc., and achieve the improvement of product enrichment ratio , Shorten the water extraction time, the effect of stable product quality

Inactive Publication Date: 2012-07-25
BEIJING FORESTRY UNIVERSITY +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the extraction and separation of saponin, the solvent method has high product purity, but there are problems such as large solvent consumption, solvent residue and complicated process; water method extraction has the characteristics of safety and low cost, but water method extraction consumes a lot of water and concentrates The cost is high, and the problem of wastewater discharge must also be considered; due to the unstable structure of Sapindus saponin, the saponin is decomposed to a certain extent during the extraction process of foam separation, and the yield is low; and vacuum heating and concentration, although it can be Protect the structure of saponin from being damaged, but a large amount of foam is generated during the operation, which affects the normal operation of the unit

Method used

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  • Extraction method of sapindus saponin

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Effect test

Embodiment 1

[0023] The Sapindus fruit peel is directly subjected to water extraction, the material-water ratio (mass ratio) of the peel and water is controlled at 1:4 during extraction, and the extraction temperature is 40°C; assisted ultrasonic extraction, ultrasonic frequency 20KHz, ultrasonic intensity 20W / cm2, ultrasonic time 10min; water extraction time 60min. Direct nitrogen flotation of the water extract, the separation and concentration of Sapindus saponin is carried out in a flotation tank, the flotation temperature is 35°C, the nitrogen purity is 99%, and the volume ratio of nitrogen in the flotation tank to the water extract is 0.6. The water circulation at the bottom of the flotation tank can also be used for the extraction of Sapindus saponin. The enrichment ratio of Sapindus saponin is 3.13, the yield of Sapindus saponin is 35.3%, and the purity of sapinin is 71.5%.

Embodiment 2

[0025]Wet mill fresh Sapindus sapindus peel with a disk mill, the concentration of the peel is 20%, the pulp is vibrated and screened, the sieve hole diameter is Φ2mm, and the sieved coarse residue is sent back to the disk mill for re-grinding. The undersieve enters the saponin water extraction, the material-water ratio (mass ratio) of the peel and water is controlled at 1:4 during extraction, and the extraction temperature is 40°C; ultrasonic extraction is assisted, the ultrasonic frequency is 20KHz, the ultrasonic intensity is 20W / cm2, and the ultrasonic time is 10min ; Water extraction time 60min. Nitrogen flotation, the separation and concentration of Sapindus saponin is carried out in a flotation cell, the flotation temperature is 35°C, the nitrogen purity is 99%, and the volume ratio of nitrogen in the flotation cell to water extract is 0.6. The water circulation at the bottom of the flotation tank can also be used for wet grinding and saponin extraction of Sapindus frui...

Embodiment 3

[0027] The Sapindus fruit peel is directly subjected to water extraction, the material-water ratio (mass ratio) of the peel and water is controlled at 1:4 during extraction, and the extraction temperature is 40°C; assisted ultrasonic extraction, ultrasonic frequency 20KHz, ultrasonic intensity 20W / cm2, ultrasonic time 10min; water extraction time 60min. The extract was filtered by a filter press, and the moisture content of the filter residue was 39%. Nitrogen flotation, the separation and concentration of Sapindus saponin is carried out in a flotation cell, the flotation temperature is 35°C, the nitrogen purity is 99%, and the volume ratio of nitrogen in the flotation cell to water extract is 0.6. The water circulation at the bottom of the flotation tank can also be used for the extraction of Sapindus saponin. The enrichment ratio of Sapindus saponin is 3.13, the yield of Sapindus saponin is 32.5%, and the purity of sapinin is 86.5%.

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Abstract

The present invention relates to an extraction method of sapindust saponin, and the method comprises the following steps: 1) extracting Sapindus peels to obtain a sapindust saponin extracting solution; and 2) separating and concentrating the sapindust saponin extracting solution by using a nitrogen gas floatation process to obtain a sapindust saponin concentrated solution. The extraction time is short, the extraction efficiency is high, any organic solvent is not needed, and the water consumption is less; and nitrogen gas separated from the air can effectively ensure the quality of the sapindust saponin in products and the environment is not polluted by waste gas.

Description

technical field [0001] The invention relates to a method for extracting chemical elements contained in plants, in particular to a method for extracting sapindus saponin. Background technique [0002] Saponin, scientific name saponin, is a relatively complex compound existing in the plant kingdom. It has been known for a long time. When its aqueous solution is shaken, it can produce a large amount of persistent cellular foam, which is similar to soap and has hemolysis. Saponin widely exists in plants, both monocots and dicotyledons, especially Rosaceae, Caryophyllaceae, Sapinaceae, Dioscoreaceae, Polygalaceae, Araceae, Liliaceae, Scrophulariaceae, Bean It contains more in some genera of plants in the family, Araliaceae, Cucurbitaceae, Ranunculaceae, Umbelliferae, Rhamnaceae, Primulaceae, etc. Saponin is structurally composed of lipophilic saponins and hydrophilic sugars, which determines that saponins are a class of excellent nonionic surfactants. Its biggest feature is tha...

Claims

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Application Information

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IPC IPC(8): C07J63/00
Inventor 蒋建新赵丹青菅红磊陈清英叶菁朱莉伟
Owner BEIJING FORESTRY UNIVERSITY
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