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Process for extracting spartina anglica polysaccharide through supercritical CO2 method

A rice grass, supercritical technology, applied in the field of health care products, can solve problems such as no reports, and achieve the effects of improving extraction effect, high extraction rate, and improving selectivity and solubility

Inactive Publication Date: 2013-05-22
YANCHENG INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the current literature search, the supercritical CO 2 The extraction method has not been reported

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] 1) Material selection step: select the whole Spartina herb that has no rot, no deterioration, and good quality, washes it with tap water, sun-dries, air-dries or vacuum-dries it to ensure the raw material quality of Spartina;

[0019] 2) Pulverizing step: cutting the Spartina into small sections first, then pulverizing in an electric pulverizer, and passing through a 40-mesh sieve to obtain pulverized extraction raw materials;

[0020] 3) Supercritical carbon dioxide extraction process: Weigh 50 g of crushed raw materials and place them in an extraction kettle of a supercritical device. Using supercritical CO 2 As an extraction solvent, ethanol with a concentration of 90% is used as an entrainer, and the extraction conditions are set: extraction pressure 35MPa, extraction temperature 40°C, CO 2 The flow rate is 20L / min, and the extraction time is 60min.

[0021] 4) Vacuum drying step: vacuum-dry the extract obtained by extraction and separation at a vacuum degree of 0...

Embodiment 2

[0024] 1) Material selection step: select the whole Spartina herb that has no rot, no deterioration, and good quality, washes it with tap water, sun-dries, air-dries or vacuum-dries it to ensure the raw material quality of Spartina;

[0025] 2) Pulverizing step: cutting the Spartina into small sections first, then pulverizing in an electric pulverizer, and passing through a 60-mesh sieve to obtain pulverized extract raw materials;

[0026] 3) Supercritical carbon dioxide extraction process: Weigh 50 g of crushed raw materials and place them in an extraction kettle of a supercritical device. Use supercritical CO2 as the extraction solvent, ethanol with a concentration of 50% as the entrainer, set the extraction conditions: extraction pressure 40MPa, extraction temperature 50°C, CO2 flow rate 15L / min, extraction time 80min.

[0027] 4) Vacuum drying step: vacuum-dry the extract obtained by extraction and separation at a vacuum degree of 1 MPa. The drying time is 5-6 hours, and ...

Embodiment 3

[0030] 1) Material selection step: select the whole Spartina herb with no rot, no deterioration and good quality, wash it with tap water, sun-dry, air-dry, dry or vacuum-dry to ensure the quality of Spartina raw material;

[0031] 2) Pulverizing step: cutting the Spartina into small sections first, then pulverizing in an electric pulverizer, and passing through a 50-mesh sieve to obtain pulverized extract raw materials;

[0032] 3) Supercritical carbon dioxide extraction process: Weigh 50 g of crushed raw materials and place them in an extraction kettle of a supercritical device. Use supercritical CO2 as the extraction solvent, ethanol with a concentration of 70% as the entrainer, set the extraction conditions: extraction pressure 25MPa, extraction temperature 60°C, CO2 flow rate 30L / min, extraction time 100min.

[0033] 4) Vacuum drying step: vacuum-dry the extract obtained by extraction and separation at a vacuum degree of 0.8 MPa. The drying time is 8-9 hours, and the dryi...

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Abstract

The invention discloses a process for extracting spartina anglica polysaccharide through a supercritical CO2 method. The process comprises the following steps of: selecting materials, crushing materials, carrying out supercritical carbon dioxide extraction, concentrating and drying. The process has the following advantages that a modern technology is adopted to extract the polysaccharide components in the spartina anglica, and the supercritical carbon dioxide method is high in efficiency, free of pollution and gentle in conditions, and meanwhile, appropriate entrainer alcohol is added to improve the selectivity and solubility of the supercritical fluid to the polysaccharide component with large polarity, thereby improving the extracting effect; the alcohol is non-toxic, green and environment-friendly and regenerative; and the selectivity and the extraction rate are high when the alcohol is used as the entrainer for extracting the polysaccharide, and the effective activity of the polysaccharide can be greatly kept. Compared with the conventional extracting way, multiple purifying steps are reduced. The process disclosed by the invention is mainly used for solving the damages of marine intertidal-zone organism spartina anglica to the surrounding ecological environment and ocean, and is simultaneously used for obtaining the spartina anglica polysaccharide component which is beneficial to the human health.

Description

technical field [0001] The invention relates to a method for extracting polysaccharides from health food, in particular to a supercritical CO 2 The invention discloses a process for extracting polysaccharides in Spartina by method, belonging to the technical field of health care products. Background technique [0002] Spartina anglica, a perennial herb, positive, wet, has the characteristics of salt and alkali tolerance, flood tolerance, and developed root system. It can play an important role in protecting beaches and banks, promoting siltation and land formation, and can also increase soil organic matter. Improve soil aggregate structure, improve saline soil, and be used as green manure, fuel, papermaking, rope making, etc. It was once called the "pioneer plant". However, the rapid spread of Spartina has caused ecological imbalance and channel blockage, making it uncontrollable for humans. The ecological hazards it causes have become a worldwide problem (Tang Tinggui, Zh...

Claims

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Application Information

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IPC IPC(8): C08B37/00
CPCY02P20/544Y02P20/54
Inventor 邵荣陈立根许伟颜秀花
Owner YANCHENG INST OF TECH
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