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Method for extracting flavone-rich pueraria starch from pueraria lobata

A technology of pueraria starch and pueraria, applied in the field of extracting pueraria starch rich in flavonoids, can solve the problems of pueraria resource waste, difficult dissolution and the like, and achieve the effects of avoiding browning, simple equipment and ensuring quality

Active Publication Date: 2013-06-12
湖南省强生药业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention aims at the utilization of single-component starch or flavonoids in the current utilization of kudzu root resources, resulting in the waste of kudzu root resources, especially the existing technical problems caused by the dissolution of flavonoids and starch in kudzu root epidermal cells. It is to provide a method that can effectively improve the nutritional value of pueraria starch, and extract pueraria starch and flavonoids from pueraria simply and quickly at the same time with high yield

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] 1. Remove impurities from the fresh kudzu root, wash and cut into sections with a length of 10-20cm;

[0035] 2. Add the sectioned kudzu root to the color protection solution and grind it into a slurry. The mass ratio of the color protection solution to the kudzu root is 1:5; the color protection solution is 0.5wt% of L-cysteine ​​and 0.5wt% of EDTA 0.25wt% mixed aqueous solution;

[0036] 3. Enzymolyze the slurry with cellulase, enzymolysis conditions: temperature 50°C, enzyme concentration 0.05g / 100g kudzu root, time 2.5h, pH 4.8;

[0037] 4. Adjust the pH of the mixture after enzymolysis to 9 with lime water, soak for 60 minutes, and sieve to remove slag to obtain kudzu root starch milk;

[0038] 5. The kudzu root starch milk is subjected to intermittent microwave treatment, the power of the microwave is 500w, the time of microwave treatment is 30s, and the number of times of treatment is 3 times;

[0039] 6. The microwave-treated kudzu root starch milk is adjusted...

Embodiment 2

[0042] 1. Remove impurities from the fresh kudzu root, wash and cut into sections with a length of 10-20cm;

[0043] 2. Add the sectioned kudzu root to the color protection solution and grind it into a slurry. The mass ratio of the color protection solution to the kudzu root is 1:8; the color protection solution contains 0.7wt% of L-cysteine ​​and 0.7wt% of EDTA 0.15wt% mixed aqueous solution;

[0044] 3. Enzymolyze the slurry with cellulase, enzymolysis conditions: temperature 48°C, enzyme concentration 0.055g / 100g kudzu root, time 2h, pH 4.8;

[0045] 4. Adjust the pH of the mixture after enzymolysis to 8 with lime water, soak for 30 minutes, sieve and remove slag, and obtain kudzu root starch milk;

[0046] 5. The kudzu root starch milk is subjected to intermittent microwave treatment, the power of the microwave is 450w, the time of microwave treatment is 30s, and the number of times of treatment is 3 times;

[0047] 6. Adjust the microwave-treated kudzu root starch milk ...

Embodiment 3

[0050] 1. Remove impurities from the fresh kudzu root, wash and cut into sections with a length of 10-20cm;

[0051] 2. Add the cut kudzu root to the color protection solution and grind it into a slurry. The mass ratio of the color protection solution to the kudzu root is 1:4; the color protection solution is 0.1wt% of L-cysteine ​​and 0.1wt% of EDTA 0.1wt% mixed aqueous solution;

[0052] 3. Enzymolyze the slurry with cellulase, enzymolysis conditions: temperature 50°C, enzyme concentration 0.055g / 100g kudzu root, time 2h, pH 4.8;

[0053] 4. Adjust the pH of the mixture after enzymolysis to 10 with sodium hydroxide, soak for 30 minutes, sieve and remove slag, and obtain kudzu root starch milk;

[0054] 5. The kudzu root starch milk is subjected to intermittent microwave treatment, the power of the microwave is 450w, the time of microwave treatment is 30s, and the number of times of treatment is 3 times;

[0055] 6. The microwave-treated kudzu root starch milk was adjusted ...

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Abstract

The invention discloses a method for extracting flavone-rich pueraria starch from pueraria lobata. The method comprises the following steps of: cutting clean and fresh pueraria lobata intio sections; adding color fixing solution; integrally grinding to obtain size; carrying out enzymolysis on the size by cellulose at 48 to 50 DEG C along with pH (Potential Of Hydrogen) of 4.6 to 5.0; dipping the mixture subjected to the enzymolysis in alkaline solution with pH of 8 to 10 for 30 to 60 minutes; filtering to remove the slag to obtain the pueraria starch; intermittently processing the obtained pueraria starch by micro wave with power of 450 to 600w in a way of processing for 10 to 30 seconds each time; adjusting the pueraria starch subjected to microwave processing to reach pH of 5 to 6; centrifugally separating; and drying the solid so as to obtain the flavone-rich pueraria starch. By adopting the method, the nutritive value of the pueraria starch can be effectively increased; and the method is simple, fast in speed and capable of realizing industrial production.

Description

technical field [0001] The invention relates to a method for extracting flavonoid-rich kudzu starch from kudzu root, which belongs to the field of health food preparation. Background technique [0002] Radix Pueraria (Radix Pueraria) is the underground root of the Pueraria genus. It is a perennial leguminous vine. It was first recorded in "Shen Nong's Materia Medica", and it was listed as a middle grade. Because it is rich in starch and flavonoids, it was listed by the Ministry of Health as "both Food and Drugs" list. In recent years, modern medicine at home and abroad has carried out in-depth and systematic research on the medicinal components and pharmacological effects of Pueraria lobata. exuberant. [0003] Pueraria is rich in starch (commonly known as kudzu root), and the food made of kudzu root has high transparency. In terms of syneresis and storage, especially if kudzu root flavonoids are retained in kudzu root, it has greater advantages than other starches. Theref...

Claims

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Application Information

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IPC IPC(8): C08B30/00
Inventor 汪卫东
Owner 湖南省强生药业有限公司
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