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Extraction method of buckwheat flavonoids

A technology of tartary buckwheat flavonoids and extraction methods, which is applied in the directions of medical formula, solid solvent extraction, plant raw materials, etc., can solve the problems of low extraction rate and unsafety of tartary buckwheat flavonoids, achieve short extraction time, less solvent, and reduce by-products Effect

Inactive Publication Date: 2014-05-28
YUNNAN JINRUN BIOTECH
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Problems solved by technology

[0003] The purpose of the present invention is to disclose a method for extracting tartary buckwheat flavonoids, broaden the comprehensive utilization value of tartary buckwheat raw materials, and solve the problems of low extraction rate and unsafety of tartary buckwheat flavonoids

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  • Extraction method of buckwheat flavonoids

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Embodiment Construction

[0036] Referring to the accompanying drawings, the technical solution of the present invention will be further described as an embodiment in combination with the production process.

[0037] refer to figure 1 , the magnetic reactor used in the present invention is a temperature-controllable medium and high-pressure magnetic reactor, so that the extraction equipment includes a magnetic reactor, an extract storage tank, a concentration unit, a mixed solution storage tank, and a multifunctional filter; Concentration unit 10 adopts DXNS-50-1 type single-effect dynamic cycle low temperature (25-30°C) concentration unit, and the connection between concentration unit 10 and magnetic reaction kettle 5 passes through extraction liquid pipeline 17, extraction liquid storage tank 16 and extraction liquid, air Three-way valve 19 communicates; Install solvent line 1, solvent and nitrogen three-way valve 2, solvent and nitrogen shared pipeline 3, barometer 4 and nitrogen line 26 in sequence...

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Abstract

An extraction method of buckwheat flavonoids uses ethanol as solvent for extraction in a totally closed extraction device. The extraction process includes: feeding inertia silica with particle size of 0.7-1mm and accounting for no less than one fifth of the volume of a magnetic reactor and buckwheat cortex powder accounting for one fourth of the volume of the magnetic reactor, well mixing, and adding solvent for wetting mixture; feeding nitrogen accounting for no less than 1.5 times of the volume of the magnetic reactor; feeding solvent accounting for two fifths of the total volume of the magnetic reactor; maintaining temperature of the magnetic reactor at 20-80 DEG C; pressurizing the magnetic reactor to reach 6-14Mpa, and maintaining the pressure fir 80-120 minutes; cleaning the magnetic reactor and performing secondary extraction; feeding solvent accounting for half of the magnetic reactor volume into the magnetic reactor; pressurizing the magnetic reactor to reach 1-10Mpa, and maintaining the pressure for 60-100 minutes; and drying mixed liquid of water and flavonoids in nitrogen atmosphere at 35-65 DEG C to obtain yellow buckwheat flavonoids.

Description

technical field [0001] The invention relates to a method for extracting tartary buckwheat flavonoids. Background technique [0002] Tartary buckwheat contains rutin (Rutin) flavonoids that are not contained in other grains. Rutin is mainly distributed in the flowers, stems, leaves, roots, seeds, and shells of tartary buckwheat, about 1%-7%. Buckwheat shell contains more than 3% rutin. It has many physiological functions and medicinal value such as lowering blood fat, blood sugar, and urine sugar, reducing microvascular fragility and permeability, preventing hemorrhage, coronary heart disease, diabetes and hypertension, and maintaining eye circulation. At present, ethanol extraction is mainly used to extract isoflavones, including traditional extraction and ultrasonic continuous countercurrent extraction. Compared with the latter, it is obviously improved, the extraction time is shortened, and the amount of ethanol is also reduced. However, both of them belong to organic s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61K36/70A61P3/06A61P3/10A61P9/14A61P7/04A61P9/10A61P9/12B01D11/02B01J19/08B01J19/14
Inventor 马梅芬刘春生
Owner YUNNAN JINRUN BIOTECH
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