Method for extracting lepidium meyenii polysaccharide through subcritical water

A technology of subcritical water and maca polysaccharide, which is applied in the field of natural product active ingredient extraction, can solve the problems of high equipment requirements, high pressure resistance requirements, and long extraction time, and achieve high efficiency, low equipment requirements, and short extraction time Effect

Inactive Publication Date: 2014-05-28
JIANGSU JIANGDAYUAN ECOLOGICAL BIOLOGICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Invention patent (CN102898534A) discloses a method of extracting and refining maca polysaccharides using 200-500 MPa ultra-high pressure conditions and water-absorbing resin concentration, but this method requires high pressure resistance of the equipment
In summary, the existing maca polysacchari

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  • Method for extracting lepidium meyenii polysaccharide through subcritical water
  • Method for extracting lepidium meyenii polysaccharide through subcritical water

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Embodiment 1

[0022] A method for extracting maca polysaccharides with subcritical water, wherein the steps of the production method are as follows: crush the dry roots of maca and pass through a 200-mesh sieve to obtain maca powder; put the prepared powder into a subcritical extraction kettle, and mix the powder with The material-liquid ratio of subcritical water is 1:10g / ml, the extraction pressure is 3MPa, the extraction temperature is 120°C, and the extraction time is 30min to obtain the extract; the extract is filtered, and the volume of the filtrate is the original 33% after concentrating under reduced pressure. %, use a 15% trichloroacetic acid solution to adjust the pH value to 1, and then refrigerate it. Refrigeration time: 4 hours, refrigerated temperature: 4°C, to obtain a refrigerated solution; centrifuge the refrigerated solution, separate the supernatant, and store it in Add ethanol to the supernatant to make the ethanol content in the solution reach 80%, refrigerate the soluti...

Embodiment 2

[0025] A method for extracting maca polysaccharides with subcritical water, wherein the steps of the production method are as follows: crush the dry roots of maca and pass through a 200-mesh sieve to obtain maca powder; put the prepared powder into a subcritical extraction kettle, and mix the powder with The material-liquid ratio of subcritical water is 1:20g / ml, the extraction pressure is 5MPa, the extraction temperature is 150°C, and the extraction time is 40min to obtain the extract; the extract is filtered, and the volume of the filtrate is 33% after being concentrated under reduced pressure. %, use a 15% trichloroacetic acid solution to adjust the pH value to 1, and then refrigerate it. Refrigeration time: 4 hours, refrigerated temperature: 4°C, to obtain a refrigerated solution; centrifuge the refrigerated solution, separate the supernatant, and store it in Add ethanol to the supernatant to make the ethanol content in the solution reach 80%, refrigerate the solution, refr...

Embodiment 3

[0028] A method for extracting maca polysaccharides with subcritical water, wherein the steps of the production method are as follows: crush the dry roots of maca and pass through a 200-mesh sieve to obtain maca powder; put the prepared powder into a subcritical extraction kettle, and mix the powder with The material-liquid ratio of subcritical water is 1:30g / ml, the extraction pressure is 10MPa, the extraction temperature is 200°C, and the extraction time is 60min to obtain the extract; the extract is filtered, and the volume of the filtrate is the original 33 %, use a 15% trichloroacetic acid solution to adjust the pH value to 1, and then refrigerate it. Refrigeration time: 4 hours, refrigerated temperature: 4°C, to obtain a refrigerated solution; centrifuge the refrigerated solution, separate the supernatant, and store it in Add ethanol to the supernatant to make the ethanol content in the solution reach 80%, refrigerate the solution, refrigerated time: 12 hours, refrigerate...

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Abstract

The invention discloses a method for extracting lepidium meyenii polysaccharide through subcritical water. Compared with a conventional hot water extraction method through which the extraction yield is 8.2 percent, the method for extracting the lepidium meyenii polysaccharide through the subcritical water has the advantages that the maximum yield of the lepidium meyenii polysaccharide can reach up to 15.5 percent. According to the method for extracting the lepidium meyenii polysaccharide through the subcritical water, the lepidium meyenii polysaccharide is extracted through the subcritical water. The method is obviously superior to the conventional hot water extraction method in terms of extraction yield, and is short in extraction time, high in efficiency, environment-friendly, pollution-free and low in equipment requirement. Meanwhile, an antioxidant activity experiment shows that the antioxidant activity of a subcritical water extract is higher than that of a conventional hot water extract under the condition.

Description

technical field [0001] The invention belongs to the field of natural product active ingredient extraction, and relates to a method for extracting maca polysaccharide with subcritical water. Background technique [0002] Maca (Lepidium meyenii Walp.) is a plant of the genus Brassicaceae. It is native to the Andes at an altitude of 3500-4500 meters. It is mainly distributed in Peru. It is known as "Peruvian ginseng". There are more than 5800 years of edible history. This species was introduced in my country in 2003 and has been planted in Yunnan and Xinjiang. In 2011, Maca was approved as a new resource food. Maca is a kind of medicinal and edible plant, which is rich in protein, sugar, amino acid, macro and trace elements and other nutrients, and its fat content is low (Analysis of the nutritional components of Maca[J]. Jiangsu Agricultural Science, 2013, 41(4):285-286), traditionally used to treat sexual dysfunction and infertility in humans and animals. Modern pharmacolo...

Claims

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Application Information

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IPC IPC(8): C08B37/00
Inventor 王未毛日文
Owner JIANGSU JIANGDAYUAN ECOLOGICAL BIOLOGICAL TECH
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