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Extraction of dihydromyricetin from microwave and composition thereof

A technology for dihydromyricetin and composition, which is applied in the field of extraction of dihydromyricetin and composition thereof, can solve the problems of undisclosed microwave extraction of dihydromyricetin and the like, and achieves short production time, easy filtration and low viscosity. Effect

Inactive Publication Date: 2005-12-28
SERICULTURE & AGRI FOOD RES INST GUANGDONG ACAD OF AGRI SCI +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there is no disclosure of a method for extracting dihydromyricetin and its composition by microwave

Method used

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  • Extraction of dihydromyricetin from microwave and composition thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0021] Take 100.0 g of common rattan tea (Xiantooth Snake Grape) purchased on the market, add 500 g of water, place it in a household microwave oven, extract for 2 minutes, filter with gauze, and cool the filtrate for 10 minutes. Dihydromyricetin and its composition are precipitated in The bottom of the container. The precipitate was dried and weighed 16.5 g.

Embodiment 2

[0023] Take 1.0Kg of Yueshe grape purchased on the market, add 5.0Kg of water, place in a microwave extraction tank with a power of 100KW, extract at 80°C for 10 minutes, filter, and place at room temperature for 12 hours. Dihydromyricetin and its composition will precipitate At the bottom of the container. The precipitate was dried and weighed 150 g.

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Abstract

Extraction dihydromyricin from microwave and its composition are disclosed. The process is carried out by adding vitaceae plant materials in microwave extraction pot, adding extraction solvent by proportion of 5-10, extracting for 1-15mins at rated horsepower 600w-2000kw and temperature 50-100íÒC, filtering, cooling filtrate, depositing dihydromyricin and composition crystal on bottom of filtrate container, filtering, drying and obtaining dihydromyricin and composition crystal.

Description

Technical field [0001] The invention relates to an extraction method of dihydromyricetin and its composition. Background technique [0002] Dihydromyricetin (ampelopsin / grossedentata) is a known compound. The literature Walter Karrarr, Birkhauser Verlag und Stuttgart (1958), P.652, NO: 1640 published its structural formula as: [0003] [0004] Publication numbers CN 1288747A, CN 1288892A, etc. have disclosed that the compound has the effects of treating hepatitis, protecting the liver, protecting the liver, antibacterial and anti-inflammatory, analgesic, lowering blood lipids, expectorating, and enhancing the immune system immunity, as well as through solvent extraction, ultrasonic extraction, chromatography Separation and other methods to extract and separate dihydromyricetin and its composition. However, no method for extracting dihydromyricetin and its composition by microwave is disclosed. In fact, the microwave method to extract dihydromyricetin and its c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D311/32
Inventor 张友胜肖更生陈卫东徐玉娟邹宇晓吴继军李升锋陈智毅刘学铭张岩
Owner SERICULTURE & AGRI FOOD RES INST GUANGDONG ACAD OF AGRI SCI
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