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Method for efficiently extracting tigogenin and cellulose with low cost

A technology of sisal saponin and cellulose, which is applied in the fields of fiber raw material processing, organic chemistry, textiles and papermaking, etc. It can solve the problems affecting the production process of sisal saponin, the increase of sisal saponin extraction cost, and the lengthy fiber removal process, etc. problem, to achieve the effect of saving extraction cost, reducing quality and reducing consumption

Active Publication Date: 2019-01-08
台州中知英健机械自动化有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because there are too many impurities in sesame paste, too much sulfuric acid is consumed correspondingly, and the amount of ethanol consumed in the subsequent purification process is also large, which greatly increases the production cost
And the removal process of fiber is relatively long, which affects the production process of sisal saponin. As the fiber of sisal saponin is removed by cellulase, the extraction cost of side sisal saponin increases greatly, and cellulose also has great industrial value

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A method for extracting sisal saponin and cellulose with low cost and high efficiency, comprising the following steps:

[0029] 1) Raw material preparation: squeeze the sisal to obtain the sisal juice, remove the coarse residue from the sisal juice, and obtain the sisal filtrate.

[0030] 2) removal of cellulose: adding concentration in the sisal filtrate of step 1) is 2% sodium hydroxide solution, and heating 60min, heating temperature keeps 80 ℃, treats that described sisal filtrate and described sodium hydroxide When the temperature of the mixture drops to 50°C, add 5% hydrogen peroxide solution and heat for 20 minutes, keeping the heating temperature at 70°C, and filter to obtain residue and filtrate.

[0031] The mass ratio of the sisal filtrate in step 1) to the sodium hydroxide solution and the hydrogen peroxide solution in step 2) is: 2.5:1.2:0.8.

[0032] 3) Extraction of sisal saponin hydrolyzate: place the filtrate obtained in step 2) in a hydrolysis tank, a...

Embodiment 2

[0039] A method for extracting sisal saponin and cellulose with low cost and high efficiency, comprising the following steps:

[0040] 1) Raw material preparation: squeeze the sisal to obtain the sisal juice, remove the coarse residue from the sisal juice, and obtain the sisal filtrate.

[0041] 2) removal of cellulose: adding concentration in the sisal filtrate of step 1) is 2% sodium hydroxide solution, and heating 80min, heating temperature keeps 100 ℃, treats that described sisal filtrate and described sodium hydroxide When the temperature of the mixture drops to 60°C, add 10% hydrogen peroxide solution and heat for 25 minutes, keeping the heating temperature at 80°C, and filter to obtain residue and filtrate.

[0042] The mass ratio of the sisal filtrate in step 1) to the sodium hydroxide solution and the hydrogen peroxide solution in step 2) is: 2.8:1.5:1.0.

[0043] 3) Extraction of sisal saponin hydrolyzate: place the filtrate obtained in step 2) in a hydrolysis tank, a...

Embodiment 3

[0050] A method for extracting sisal saponin and cellulose with low cost and high efficiency, comprising the following steps:

[0051] 1) Raw material preparation: squeeze the sisal to obtain the sisal juice, remove the coarse residue from the sisal juice, and obtain the sisal filtrate.

[0052] 2) removal of cellulose: adding concentration in the sisal filtrate of step 1) is 3% sodium hydroxide solution, and heating 70min, heating temperature keeps 90 ℃, treats that described sisal filtrate and described sodium hydroxide When the temperature of the mixture drops to 55°C, add 8% hydrogen peroxide solution and heat for 23 minutes, keeping the heating temperature at 75°C, and filter to obtain residue and filtrate.

[0053] The mass ratio of the sisal filtrate in step 1) to the sodium hydroxide solution and the hydrogen peroxide solution in step 2) is: 2.6:1.3:0.9.

[0054] 3) Extraction of sisal saponin hydrolyzate: place the filtrate obtained in step 2) in a hydrolysis tank, a...

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PUM

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Abstract

The invention relates to the technical field of extraction and in particular discloses a method for efficiently extracting tigogenin and cellulose with low cost. The method comprises the following steps: squeezing sisal hemp, and removing coarse dregs so as to obtain sisal hemp filtrate; treating the sisal hemp filtrate with sodium hydroxide and hydrogen peroxide in sequence; feeding the treated sisal hemp filtrate through sulfuric acid and phosphoric acid so as to obtain tigogenin hydrolysate; carrying out extraction, solvent recycling, filtration and washing on the tigogenin hydrolysate in sequence so as to obtain tigogenin; purifying the tigogenin with cyclohexane and ethanol. By adopting the method for efficiently extracting the tigogenin and the cellulose with low cost, the extractiontime and cost of the tigogenin can be effectively reduced, the cellulose can be extracted from the sisal hemp, and economic benefits can be increased.

Description

technical field [0001] The invention relates to the technical field of extraction, in particular to a method for extracting sisal saponin and cellulose with low cost and high efficiency. Background technique [0002] Sisal, aliased as sisal hemp, water silk hemp, agave hemp, etc., belongs to Agaveaceae, Agave genus, and contains sisal saponin (tigogenin) in the form of steroidal saponins. Its C3 and C26 positions are connected with sugar chains through saponin bonds. To prepare sisal saponin, the saponin bond must be hydrolyzed. The sisal juice and sisal residue obtained during fiber extraction contain various saponins, the main components of which are steroidal saponins that can be hydrolyzed into sisal saponins. Sisal saponin has anti-inflammatory, antipyretic, analgesic, immune-enhancing, blood sugar-lowering, anti-tumor, anti-cancer, anti-bacterial, blood-fat-lowering, and blood-pressure-lowering effects, and is widely used as a precursor for the synthesis of steroidal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07J71/00D21C3/04D21C3/16D21C5/00
CPCC07J71/0005D21C3/04D21C3/16D21C5/00
Inventor 韩佳琪谢剑玲
Owner 台州中知英健机械自动化有限公司