Method for extracting mucus protein of purple common yam rhizomes

A technology of mucus protein and extraction method, which is applied in the field of extraction of purple yam mucin, can solve the problems of unfavorable extraction of mucus protein, energy consumption, high production cost, etc., and achieve easy control of operating parameters, preservation of integrity, and guarantee The effect of stability

Inactive Publication Date: 2014-08-27
黄香利
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The unique feature of purple yam medicine is that it contains a large amount of mucus, and viscous protein exists in a large amount of mucus, which makes its extraction difficult.
Because the whole powder of purple yam contains a lot of starch, it is wrapped with viscous protein, which is not conducive to the extraction of viscous pr

Method used

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  • Method for extracting mucus protein of purple common yam rhizomes

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Effect test

Embodiment 1

[0032] Such as figure 1 Shown, a kind of extraction method of purple yam mucin comprises the steps:

[0033] Step 1: Wash and peel the purple Chinese yam, first crush it with a coarse crusher, then use a universal crusher to crush it, pass through a 150-mesh sieve to collect the sieve, weigh about 70kg of the purple Chinese yam, and put It is dissolved in 700 kg of NaCl aqueous solution with a mass volume concentration of 2% for leaching, and finally evaporated to dryness, so that the water content in the purple yam powder is lower than 3%;

[0034] Step 2, the powder of the purple yam obtained in step 1 is placed in the extraction kettle of the supercritical carbon dioxide extraction device, and the extraction is carried out 10 times, and then 5 kg of the residue left in the extraction kettle is obtained, wherein each extraction includes successively carried out Two stages, the first-stage extraction is carried out at a pressure of 42MPa and a temperature of 47.5°C for 1h, a...

Embodiment 2

[0041] Such as figure 1 Shown, a kind of extraction method of purple yam mucin comprises the steps:

[0042] Step 1: Wash and peel the purple Chinese yam, first crush it with a coarse crusher, then use a universal crusher to crush it, pass through a 150-mesh sieve to collect the sieved material, weigh about 70kg of the purple Chinese yam, and divide it Dissolved in 840kg NaCl aqueous solution for leaching, and finally evaporated to dryness, so that the moisture content in the purple Chinese yam powder is 3%;

[0043] Step 2, the powder of the purple yam obtained in step 1 is placed in the extraction kettle of the supercritical carbon dioxide extraction device, and the extraction is carried out 5 times, and then 5 kg of residues left in the extraction kettle are obtained, wherein each extraction includes successively carried out Two stages, the first-stage extraction is carried out at a pressure of 41MPa and a temperature of 45°C for 1h, and the flow rate of carbon dioxide is ...

Embodiment 3

[0050] Such as figure 1 Shown, a kind of extraction method of purple yam mucin comprises the steps:

[0051] Step 1, first wash the purple Chinese yam, use a coarse crusher to crush it, and then use a universal crusher to crush it, pass through a 150-mesh sieve to collect the underscreen, weigh about 70kg of the purple Chinese yam, and dissolve it in 770kg of The mass volume concentration is 2% for leaching in the NaCl aqueous solution, and finally evaporates the water to make the water content in the purple yam powder lower than 3%;

[0052] Step 2, place the powder of the purple yam medicine obtained in step 1 in the extraction kettle of the supercritical carbon dioxide extraction device, perform 15 extractions, and then obtain 5 kg of residue left in the extraction kettle, wherein each extraction includes successively carried out Two stages, the first-stage extraction is carried out at a pressure of 43MPa and a temperature of 50°C for 1h, and the flow rate of carbon dioxid...

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Abstract

The invention discloses a method for extracting mucus protein of purple common yam rhizomes. The method comprises the following steps that first, the purple common yam rhizomes are processed to be fine powder which is soaked, and then water is dried to be removed; second, the powder of the purple common yam rhizomes is placed in a supercritical carbon dioxide extraction kettle to be extracted, residues are obtained, extraction comprises two stages which are conducted before and after every time, the extraction at the first stage is conducted for one hour under the pressure being 41-43 MPa and the temperature being 45-50 DEG C, wherein the flow rate of carbon dioxide is 10-20 kg/h, and the extraction at the second stage is conducted for 2.5-3.5 hours under the pressure being 43-45 MPa and the temperature being 42 DEG C, wherein the flow rate of the carbon dioxide is 10-20 kg/h; third, the obtained residues are soaked again, high-temperature resistance alpha-amylase is added, injection and liquefaction are conducted, then cooling is conducted, and filtering is conducted to obtain clear liquid; fourth, the obtained clear liquid is purified by a lectin resin column, and the mucus protein of the purple common yam rhizomes can be obtained after elution.

Description

technical field [0001] The invention relates to a method for extracting the mucus protein of purple yam medicine. Background technique [0002] In addition to saponins, polysaccharides, proteins, amylases, amino acids, choline, rich vitamins and various trace elements, purple yam medicine also contains viscous protein and other ingredients. It is a medicinal and edible product with high nutritional value. As a glycoprotein, yam mucin has the functions of regulating immunity, inhibiting tumors, lowering blood sugar, blood lipids, anti-oxidation, and anti-aging, and is extremely beneficial to patients with coronary heart disease. The unique feature of purple yam is that it contains a large amount of mucus, and viscous protein exists in a large amount of mucus, which makes its extraction difficult. Because the whole powder of purple yam contains a lot of starch, it is wrapped with viscous protein, which is not conducive to the extraction of its viscous protein. Traditionally,...

Claims

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Application Information

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IPC IPC(8): C07K14/415C07K1/36C07K1/34C07K1/16
CPCC07K14/415Y02P20/54
Inventor 黄香利
Owner 黄香利
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