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Hydrolysis method for production of saponin from turmeric

A technology of saponin and turmeric, applied in the hydrolysis field of turmeric to produce saponin, can solve problems such as being unable to be used in industrial production, difficult to control, polluting the environment, etc., achieving low production cost and industrial production equipment input, and favorable pollution control. , the effect of high yield

Inactive Publication Date: 2013-07-03
SHIYAN QINLING ZHONGDI BIOTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problem it brings is: to produce 1T of saponin, 20T of industrial hydrochloric acid or 8T of sulfuric acid is used to produce a large amount of high-concentration wastewater, seriously polluting the environment, and it is difficult and costly to treat
Over the years, people have studied the use of enzyme-catalyzed hydrolysis or other methods to replace acid hydrolysis, but they have not been used in industrial production

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0016] Example 1. Grind 200g of fresh turmeric to 120 mesh, add 200-400g of water, separate fiber and starch by direct separation method, and obtain slurry. Use precipitation method to remove supernatant until the slurry reaches a concentration of 6-15%, and ferment naturally After 48 hours, add acetic acid to adjust the pH to 2, add it to the high-pressure container, add 0.4g of hydrolysis aid, and heat it to 120 0 C temperature, pressurize the air pump to 12Mpa pressure, hydrolyze for 20min, take out the slurry to filter, clean, dry, and use gasoline in a Soxhlet extractor for 80 0 C extraction and extraction for 4h, cooling and crystallization to obtain 1.6g of saponin.

example 2

[0017] Example 2: Grind 1Kg of fresh turmeric to 80 mesh, add 1-2Kg of water, obtain the slurry to ferment naturally for 48 hours, adjust the pH to 2 with hydrochloric acid, add the slurry to a high-pressure hydrolysis tank, add 1g of hydrolysis aid, and heat to 140 0 C, the pressure is formed naturally and the pressure is maintained at 10mpa for 20 minutes, the slurry is taken out and filtered, cleaned and dried, and heated with gasoline at 80 0 C was extracted for 4 hours, cooled and crystallized, and saponin was extracted to obtain 8 g of saponin.

example 3

[0018] Example 3: Grind 1T of fresh turmeric to 100 mesh, add 1-2T of water, sieve out the fiber with a vibrating frame flat sieve, and then use a special cyclone to separate out the starch. After the slurry is precipitated to remove the supernatant, it is naturally fermented 48h, use hydrochloric acid to adjust PH=2, then add 1Kg of hydrolysis aid, add it to the high-pressure hydrolysis tank, and heat it to 145 with steam 0 C, 8mpa pressure, keep the pressure for 20min, wash the hydrolyzate, dry until the water content is ≤4%, use 120 gasoline 80 in the extraction tank 0 C was refluxed and extracted for 4 hours to obtain 8.2Kg of saponin.

[0019] The raw material described in the process of the present invention is not only turmeric, but also other yam raw materials, yellow yam, turmeric and the like.

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PUM

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Abstract

The invention provides a hydrolysis method for production of saponin from turmeric, including adding organic or inorganic acid to turmeric slurry to adjust the pH to be 1-6, then adding to an autoclave reactor, adding an amine organic hydrolysis additive for subcritical hydrolysis, wherein the subcritical hydrolysis temperature is 600-2700 DEG C, the pressure is 1-30Mpa, and the hydrolysis time is 10min-1h; removing the slurry after subcritical hydrolysis, filtering, washing and drying; and finally reflux extracting with white gasoline for 4h, evaporating the gasoline, cooling and crystallizing to obtain saponin. According to the hydrolysis method for production of saponin from turmeric, saponin is obtained by the subcritical hydrolysis method, the use of acid can be significantly reduced, and high concentration of acidic waste water is no longer produced, thus the method becomes clean production and is extremely beneficial to pollution control; while the saponin yield is high, the quality is good; process is stable and good in repeatability, the production cost is low, the industrial production equipment investment is low, energy consumption and water consumption can be significantly reduced, and the method is conducive to promotion and application.

Description

technical field [0001] The invention relates to a hydrolysis process of turmeric saponin, in particular to a hydrolysis method for producing saponin from turmeric. Background technique [0002] Saponin, which is extracted from turmeric, is an important steroid compound, and it is the basic raw material for the production of hormone drugs and some anti-inflammatory drugs. Turmeric is the common name of Dioscorea shield leaf. In addition to turmeric, saponin is also extracted from other yam tubers and plants such as yellow yam in industry. Saponin Molecular Formula: C 27 h 42 o 3 Molecular weight: 414. [0003] The production method of saponin is that after the turmeric is crushed, it is pretreated, such as fermentation, fiber and starch separation, etc., and then enters the acid hydrolysis process, and then the hydrolyzate is cleaned, dried, and extracted with an organic solvent (such as gasoline) to obtain saponin. [0004] Among them, the acid hydrolysis process was f...

Claims

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Application Information

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IPC IPC(8): C07J71/00
Inventor 郭湘汾朱重宁李郧生游云
Owner SHIYAN QINLING ZHONGDI BIOTECH CO LTD