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Method for extracting flavone in platycodin grandifloras roots through microwave assistance

A microwave-assisted, medium-flavonoid technology is applied in pharmaceutical formulations, medical preparations containing active ingredients, plant raw materials, etc. It can solve the problem of not finding flavonoids from Platycodon grandiflorum, and achieve rich nutrition and functional substances, high purity, high-efficiency effect

Inactive Publication Date: 2019-04-26
NORTHEAST AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there are many technical documents and patents related to the extraction of platycodon saponins in my country, but no relevant information can be found on the relevant website of the national invention patent for extracting platycodon flavonoids

Method used

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  • Method for extracting flavone in platycodin grandifloras roots through microwave assistance
  • Method for extracting flavone in platycodin grandifloras roots through microwave assistance
  • Method for extracting flavone in platycodin grandifloras roots through microwave assistance

Examples

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Effect test

specific Embodiment 1

[0014] Wash, peel and slice the fresh platycodon root, dry it to constant weight at 60°C, crush it through a 100-mesh sieve, and carry out microwave-assisted treatment with a solid-liquid ratio of 1:30, an ethanol concentration of 60%, and a microwave power of 420w. The microwave time is 60s, the extract is filtered, and the filter residue is extracted once again under this condition, and the two filtrates are combined to complete the entire extraction process of bellflower flavonoids. The solution is rotary evaporated and freeze-dried to obtain bellflower root flavonoids.

specific Embodiment 2

[0015] Wash, peel and slice the fresh platycodon root, dry it to constant weight at 60°C, crush it through a 100-mesh sieve, and carry out microwave-assisted treatment with a solid-liquid ratio of 1:40, an ethanol concentration of 70%, and a microwave power of 420w. The microwave time is 60s, the extract is filtered, and the filter residue is extracted once again under this condition, and the two filtrates are combined to complete the entire extraction process of bellflower flavonoids. The solution is rotary evaporated and freeze-dried to obtain bellflower root flavonoids.

specific Embodiment 3

[0016] Wash, peel and slice the fresh platycodon root, dry it to constant weight at 60°C, crush it through a 100-mesh sieve, and carry out microwave-assisted treatment with a solid-liquid ratio of 1:30, an ethanol concentration of 70%, and a microwave power of 420w. The microwave time was 120s, the extract was filtered, and the filter residue was extracted once again under this condition, and the two filtrates were combined to complete the entire extraction process of bellflower flavonoids. The solution was rotary evaporated and freeze-dried to obtain bellflower root flavonoids.

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Abstract

The invention discloses a method for extracting flavone in platycodin grandifloras roots through microwave assistance, and belongs to the technical field of effective ingredient extraction of agricultural products. The method comprises the following concrete steps that (1) fresh platycodin grandifloras roots are cleanly cleaned, peeled and cut into slices; then, drying is performed at 60 DEG C toreach constant weight; after crushing, the materials pass through a 100 mesh sieve; (2) a certain quantity of platycodin grandifloras powder is taken; ethanol with the volume being 30 times and the concentration being 70 percent is added; (3) microwave treatment is performed for 60s under the condition that the microwave power is 420w; (4) extraction liquid is filtered; filter slag is repeatedly extracted; twice filtering liquid is merged; the whole platycodin grandifloras flavone leaching process is completed; the solution is subjected to rotary evaporation and freeze drying to obtain the platycodin grandifloras flavone product being 2.49mg / g. The process operation is simple; the production cost is low; the green and environment-friendly effects are achieved; no pollution exists.

Description

technical field [0001] A method for microwave-assisted extraction of flavonoids from platycodon root, belonging to the technical field of extraction of active ingredients of agricultural products, specifically relates to a microwave extraction flavone treatment technology, the final extraction rate of flavonoids is 2.49mg / g, which is an extraction method for flavonoids Provide evidence. Background technique [0002] Platycodin grandifloras (Platycodin grandifloras) is a herbaceous plant in the Campanulaceae family, also known as burden flower, bell flower, mitral flower, etc. Platycodon grandiflorum is a traditional medicine and food homologous plant, which is a plant with edible, medicinal and ornamental value. It is distributed in most provinces and autonomous regions of my country, and also in North Korea, Japan, and the Russian Far East. [0003] Flavonoids are a class of compounds that widely exist in the plant kingdom and are the active ingredients of many Chinese he...

Claims

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Application Information

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IPC IPC(8): A61K36/346A61K125/00
CPCA61K36/346A61K2236/39A61K2236/51A61K2236/17A61K2236/15A61K2236/333
Inventor 张秀玲许瑞如薄艳秋赵恒田高诗涵田亚琴柳晓晨
Owner NORTHEAST AGRICULTURAL UNIVERSITY
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