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Process for producing saponin and rhamnose from turmeric

A technology of rhamnose and saponin, applied in the field of saponin extraction, can solve the problems of ineffective utilization of cellulose, interference with diosgenin hydrolysis, a large amount of waste water and waste residue, etc., to reduce the amount of steam, save the amount of steam, and facilitate the Delivery and added effects

Active Publication Date: 2017-12-01
刘玉通
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are three major deficiencies in the application of this process to industrial production: First, a large amount of waste water and waste residues are generated during production, and the problem of environmental pollution after discharge is serious
Second, the yield of saponin is low, mainly because: (1) The raw materials of turmeric are all involved in hydrolysis, and dioscin is tightly wrapped by plant tissue, which interferes with the hydrolysis of dioscin
(2) It is the steric hindrance caused by the glycosyl group bound to the C3 position, which makes the hydrolysis incomplete
Third, other ingredients in turmeric, such as 40% starch and 50% cellulose, are not used economically and effectively, resulting in serious waste of resources and environmental pollution
The above factors lead to the high cost and difficulty of the saponin alcohol extraction process compared with the traditional process.

Method used

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  • Process for producing saponin and rhamnose from turmeric
  • Process for producing saponin and rhamnose from turmeric
  • Process for producing saponin and rhamnose from turmeric

Examples

Experimental program
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Effect test

Embodiment 1

[0047] Such as figure 1 Shown: (1) Grind turmeric dry material and pass through a 100-mesh sieve;

[0048] The turmeric dry material is ultrafinely crushed and sieved through a 100-mesh sieve, wherein the water content of the turmeric dry material is less than or equal to 8%, so as to avoid excessive water content from hindering the extraction of saponins.

[0049] (2) Mix the sieved material with low molecular weight alcohol and stir it into a homogenous slurry;

[0050] In the present embodiment, low-molecular alcohol is methanol, and the material after screening, i.e. turmeric powder, is dropped into the batching tank, and then methanol is dropped into the batching tank, and the mass ratio of turmeric powder to methanol is 1:3. Then stir the material in the batching tank into a homogenous slurry. Raise the temperature of the homogenate in the batching tank to 60°C, and then transport the homogenate to a ceramic membrane extraction device for extraction.

[0051] (3) Afte...

Embodiment 2

[0079] (1) Grinding the dry turmeric material and passing through a 100-mesh sieve;

[0080] The turmeric dry material is ultrafinely crushed and sieved through a 100-mesh sieve, wherein the water content of the turmeric dry material is less than or equal to 8%, so as to avoid excessive water content from hindering the extraction of saponins.

[0081] (2) Mix the sieved material with low molecular weight alcohol and stir it into a homogenous slurry;

[0082] In the present embodiment, the low-molecular alcohol is ethanol, and the material after sieving, i.e. turmeric powder, is dropped into the batching tank, and then into ethanol in the batching tank, the mass ratio of turmeric powder and ethanol is 1:2, Then stir the material in the batching tank into a homogenous slurry. Raise the temperature of the homogenate in the batching tank to 60°C, and then transport the homogenate to a ceramic membrane extraction device for extraction.

[0083] (3) After the homogenate is heated ...

Embodiment 3

[0096] (1) Grinding the dry turmeric material and passing through a 100-mesh sieve;

[0097] The turmeric dry material is ultrafinely crushed and sieved through a 100-mesh sieve, wherein the water content of the turmeric dry material is less than or equal to 8%, so as to avoid excessive water content from hindering the extraction of saponins.

[0098] (2) Mix the sieved material with low molecular weight alcohol and stir it into a homogenous slurry;

[0099] In the present embodiment, the low-molecular-weight alcohol is methanol, and the material after screening, i.e. turmeric powder, is dropped into the batching tank, and then methanol is dropped into the batching tank. The mass ratio of turmeric powder and methanol is 1:5. Then stir the material in the batching tank into a homogenous slurry. Raise the temperature of the homogenate in the batching tank to 60°C, and then transport the homogenate to a ceramic membrane extraction device for extraction.

[0100] (3) After the h...

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Abstract

A process for producing saponin and rhamnose from turmeric belongs to the technical field of saponin extraction. The method comprises the following steps of: (1) pulverizing a dried turmeric material; (2) mixing the sieved material with low molecular alcohol and stirring into homogenate; (3) heating the homogenate and then sending into a ceramic membrane extraction apparatus for extraction; (4) adding acid liquor into the concentrated mixed liquid for hydrolysis, filter pressing the solid-liquid mixture after hydrolysis, and drying to obtain a hydrolyzate; (5) mixing the hydrolyzate with petroleum ether, sending into the ceramic membrane extraction apparatus for extraction, performing crystallization separation on the extracted mixed liquid to obtain a saponin crystal substance; (6) adding the acid hydrolysis waste water in step (4) into lime water for neutralization, and then decolorizing, separating, concentrating and crystallizing to obtain the rhamnose. The process for producing saponin and rhamnose from turmeric achieves the clean production of the saponin, the acid hydrolysis waste water generated during production is less than 5% of a traditional process, and the yield of saponin is improved by 30% or above.

Description

technical field [0001] The invention discloses a process for producing saponin and rhamnose by using turmeric, belonging to the technical field of saponin extraction. Background technique [0002] Turmeric is the most ideal raw material for extracting saponin. Various steroid hormone drugs are semi-synthesized mainly from diosgenin (saponin). China and Mexico are the largest exporters of saponin in the world. Due to the lack of raw materials for extracting saponin, the development of saponin industry has been restricted. The production of saponin has gradually declined, and the market demand has been in a trend of selling well. Suspended or semi-suspended production, the main reason for this phenomenon is the serious shortage of turmeric raw materials and the country's strengthening of saponin environmental protection, the increase in saponin production costs, and the sharp decline in the benefits of saponin manufacturers. The saponin product market is seriously unbalance...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07J71/00C07H3/08C07H1/08
Inventor 刘玉通刘今依
Owner 刘玉通
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