Unlock instant, AI-driven research and patent intelligence for your innovation.

Production process for extracting saponins from yellow ginger by using solvent catalyzing method

A production process and a solvent method technology are applied in the production process field of extracting saponin from turmeric by a catalytic solvent method, and can solve problems such as low saponin yield, reduction of pollutant discharge, etc., and achieve short process time and reduced acid consumption. , the effect of simple operation

Inactive Publication Date: 2012-05-23
PEKING UNIV
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to solve the problem of low saponin yield in the turmeric saponin solvent extraction method, we refer to the theory of "catalyzed organic solvent pulping" in the paper industry and the material composition characteristics of turmeric, and propose a "catalytic solvent method" to clean turmeric saponin. The production process has successfully realized the effective separation of saponin and starch fiber, etc., to achieve the purpose of ensuring the yield of saponin and reducing the discharge of pollutants

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Wash turmeric (particle size is about 3-5mm), weigh 200g (solid content 40%) into a three-necked flask, then add 70% (volume concentration) ethanol 680ml, aluminum sulfate 0.2g, hydrochloric acid 0.4g, the system Warm up to 60°C and react for 1 hour with stirring; after the reaction is over, filter to obtain the extract, then wash the filter residue (starch fiber mixture) with 160ml of 60% ethanol, dry the filter residue in total 65.6g, combine the extracts, and recover the solvent to obtain saponin Pulp 100g, its solid content is 18%; then add concentrated sulfuric acid to adjust [H + ]=2M, carry out acid hydrolysis in an autoclave (0.10-0.15MPa) for 3h; then filter and wash the hydrolysate to obtain a total of 500mL of comprehensive wastewater. The dry weight of the hydrolysate is about 5g, and then use 120# gasoline to extract, crystallize and dry. 2.2 g of saponin product was obtained with a purity of 97%, that is, the yield of saponin was 2.67%.

Embodiment 2

[0033] Wash turmeric (particle size about 3-5mm), weigh 200g (solid content 35%) into a three-necked flask, then add 71% (volume concentration) ethanol 710ml, sodium bicarbonate 0.1g, sodium hydroxide 0.2g , The system was heated to 70°C and reacted for 2 hours under stirring; after the reaction was completed, the extract was filtered, and then the filter residue (starch fiber mixture) was washed with 140ml of 60% ethanol, and the filter residue was dried for a total of 56g. The extracts were combined and the solvent was recovered. Obtain 95g of saponin slurry with a solid content of 19%; then add concentrated sulfuric acid to adjust [H+]=2M, and carry out acid hydrolysis in an autoclave (0.10-0.15MPa) for 3h; then filter and wash the hydrolysate to obtain a total of 450mL of comprehensive wastewater. The dry weight of the hydrolysate is about 4.5g, and then it is extracted with 120# gasoline Soxel, crystallized and dried to obtain 1.9g of saponin product with a purity of 98%, t...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
Login to View More

Abstract

The invention provides a production process for extracting saponins from yellow ginger by using a solvent catalyzing method. The process comprises the following steps: cleaning and crushing the yellowginger, effectively extracting the saponins from the yellow ginger by using an organic solvent added with a catalyst to separate large amount of starch cellulose for resource utilization, concentrating the extract to obtain saponins pulp, hydrolyzing the saponins pulp by inorganic acid to obtain a hydrolysate containing the saponins, then carrying out soxhlet extraction for the hydrolysate by using NO.120 gasoline, and finally crystallizing and drying the extract to obtain a saponins product. The production process has the advantages that the yield of the saponins is high (2.6 to 2.8 percent), the process time is short (18 hours), the operation is simple, the acid consumption is little and the COD is reduced so as to lower cost and reduce environment pollution.

Description

Technical field [0001] The invention relates to a production process for extracting substances from natural plants, in particular to a process for quickly and efficiently extracting saponin from yellow ginger using a catalytic organic solvent method, that is, a production process for extracting saponin from yellow ginger using a catalytic solvent method. Background technique [0002] As a medicinal plant, yellow ginger is the most valuable ingredient is diosgenin and its aggregating diosgenin, but the content of saponin is generally only 1-4% (by weight of dry ginger), and the rest is starch (45 -50%) and fiber (35-45%), and a small amount of trace chemical components. [0003] The domestic production of turmeric saponin basically uses traditional fermentation acid hydrolysis technology, which is an old technology that has been used for more than 50 years. [0004] Fresh turmeric→washing→crushing→natural fermentation→acid hydrolysis→filter washing→drying→gasoline extraction→concentr...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C07J71/00B01J27/236B01J27/10B01J27/053B01J23/04
Inventor 倪晋仁吴绍祖付东康吴广安周国辉刘美王玉枝
Owner PEKING UNIV