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A method for extracting kudzu root oxidized starch and kudzu root polypeptide from kudzu root crude starch

A technology of oxidized starch and kudzu root, which is applied in the extraction of Chinese herbal medicines, can solve problems such as safety limitations, achieve the effects of wide application, promote development, and realize zero discharge of sewage

Active Publication Date: 2022-02-01
绵阳膳意生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, oxidized starch is generally obtained by acid-base chemical treatment or enzyme treatment of natural starch (such as corn starch), which is a non-natural starch, so there are still certain limitations in terms of safety when used in the food and pharmaceutical industries.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Put 100Kg of kudzu root crude product starch, add 2 tons of water, fully stir, pass through a 200-mesh sieve, and after the filtrate is allowed to stand for 8 hours, use a butterfly centrifuge to separate the unsettled water suspension from solid to liquid to obtain a solid part and a liquid part; Replace with clean water, then squeeze, and then blow dry to obtain 21.2Kg of Pueraria oxidized starch extract, the content of Pueraria oxidized starch is 92.4%; the liquid part is clarified by adding 200Kg of 101 fruit juice clarifier, and the supernatant is then concentrated by MVR and sprayed After drying, 2.0 Kg of the Pueraria root polypeptide extract was obtained, and the content of the Pueraria root polypeptide was 12.0%.

Embodiment 2

[0034] Put 100Kg of kudzu root crude product starch, add 1.2 tons of water, fully stir, pass through a 200-mesh sieve, and after the filtrate is allowed to stand for 6 hours, use a plate and frame filter to carry out solid-liquid separation of the unsettled water suspension to obtain a solid part and a liquid part; Replace with clean water, then press, and then blow dry to obtain 20.7Kg of Pueraria oxidized starch extract, the content of Pueraria oxidized starch is 95.1%; the liquid part is clarified by adding 40Kg of 101 fruit juice clarifier, and the supernatant is then concentrated by MVR and sprayed Dried to obtain 1.9Kg of Pueraria lobata polypeptide extract and 12.8% of Pueraria lobata polypeptide content.

Embodiment 3

[0036] Put 100Kg of kudzu root crude product starch, add 3 tons of water, fully stir, pass through a 200 mesh sieve, and after the filtrate is left to stand for 10 hours, use a plate and frame filter to carry out solid-liquid separation of the unsettled water suspension to obtain a solid part and a liquid part; Replace with clean water, then press, and then blow dry to obtain 19.8Kg of Pueraria oxidized starch extract, the content of Pueraria oxidized starch is 91.7%; the liquid part is clarified by adding 600Kg of 101 fruit juice clarifier, and the supernatant is concentrated by MVR and sprayed Dry to obtain 1.8Kg of Pueraria root polypeptide extract, and the content of Pueraria root polypeptide is 13.4%.

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Abstract

The invention provides a method for extracting oxidized starch and Pueraria polypeptide from pueraria crude starch, which includes the steps of suspension, sieving, sedimentation, solid-liquid separation, concentration, and drying. The process is simple and easy, and the obtained Pueraria oxidized starch content It can be used in medicine and food industry; the present invention finds a natural source of Pueraria oxidized starch, which can replace the existing cornstarch prepared by artificially treating cornstarch with acid, alkali or enzyme. The obtained non-natural oxidized starch has a wide range of uses; the method provided by the invention can also be used for wastewater treatment in the production of kudzu starch, extracting active ingredients therefrom, turning waste into wealth, and promoting the development of kudzu starch industry.

Description

technical field [0001] The invention relates to an extraction method, in particular to a method for extracting kudzu root oxidized starch and kudzu root polypeptide from kudzu root crude starch, which belongs to the technical field of extraction of traditional Chinese medicinal materials. Background technique [0002] Pueraria lobata is the hypertrophic root tuber of perennial deciduous vines of the genus Fabaceae (Pueraria.DC). There are nearly 18 species of Pueraria in the world, mainly distributed in subtropical and temperate regions. In my country, there are about 9 species and 2 varieties, concentrated in Yunnan and its adjacent provinces. The main components of kudzu root are starch, cellulose and isoflavones. Starch is the main component of kudzu root. Fresh kudzu root contains about 20%-25% starch. Pueraria starch has unique nutrition and is a kind of green health food with excellent medicine and food. The amylose content in pueraria starch is about 18%-23%, the st...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08B30/12C07K1/34C07K1/14C12N1/00A23L29/30A23L33/18A61P13/12
CPCC08B30/12C07K1/34C07K1/14C12N1/00A23L29/30A23L33/18A61P13/12A23V2200/00A23V2200/30A23V2250/55
Inventor 吴宪君谢相林申兵义
Owner 绵阳膳意生物科技有限公司
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