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Method for extracting flavonoid compounds in mung bean hull

A technology for extracting flavonoids in the skin, which is applied in the directions of organic chemistry, pharmaceutical formulations, plant raw materials, etc., can solve the problems of low efficiency, unsuitable for industrial production, long extraction time, etc., and achieves high efficiency, simple production, and long extraction time. Effect

Inactive Publication Date: 2010-02-10
JUXIANGYUAN HEALTH FOOD ZHONGSHAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in actual operation, the extraction time is long and the efficiency is relatively low, which is not suitable for industrial production

Method used

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  • Method for extracting flavonoid compounds in mung bean hull
  • Method for extracting flavonoid compounds in mung bean hull

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] First, collect 1kg of mung bean skins, coarsely crush and pass through a 20-mesh sieve, and then adjust the moisture content of mung bean skins to 15%. Subsequently, the mung bean skin powder with adjusted moisture content is subjected to twin-screw extrusion expansion treatment: extrusion temperature is 110°C, screw speed is 200r / min, and feeding speed is 500g / min, so that the mung bean skin powder becomes porous with loose texture status. Then, it was pulverized to 40 mesh using a plant pulverizer. Afterwards, 10 g of mung bean skin powder was weighed and poured into a beaker, and 200 mL of 40% ethanol solution was added for extraction, and the extraction was carried out at a temperature of 80° C. for 2 h. Finally, the filtrate was obtained by filtration, and the filtrate was divided into trays with a large open area, and subjected to vacuum freeze concentration and drying at 30° C. for 8 hours to obtain crude mung bean peel flavonoids.

[0021] Determination: Using...

Embodiment 2

[0037] First, collect 1.5kg of mung bean skins, coarsely crush and pass through a 20-mesh sieve, and then adjust the moisture content of mung bean skins to 17%. Subsequently, the coarse mung bean skin powder with moisture adjustment is subjected to twin-screw extrusion expansion treatment: the extrusion temperature is 115°C, the screw speed is 270r / min, and the feeding speed is 700g / min, so that the mung bean skin coarse powder becomes porous with loose texture. status. Then, the extruded product was pulverized to 40 mesh using a plant pulverizer. Afterwards, 10 g of mung bean skin powder was weighed and poured into a glass beaker, and 250 ml of 40% ethanol solution was added for extraction, and the extraction was carried out at a temperature of 75° C. for 2.5 h. Finally, the filtrate was obtained by filtration, and the filtrate was divided into trays with a large open area, and subjected to vacuum freeze concentration and drying at 45° C. for 6 hours to obtain crude mung bea...

Embodiment 3

[0040] First, collect 2kg of mung bean skins, coarsely crush and pass through a 20-mesh sieve, and then adjust the moisture content of mung bean skins to 18%. Subsequently, the mung bean skin with adjusted moisture content is subjected to twin-screw extrusion expansion treatment: extrusion temperature 120°C, screw speed 250r / min, feeding speed 600g / min, so that the mung bean skin powder becomes a loose texture porous state. Then, the extruded product was pulverized to 40 mesh using a plant pulverizer. Afterwards, 10 g was weighed and poured into a glass beaker, and 300 ml of 35% ethanol solution was added for extraction, and the extraction was carried out at a temperature of 80° C. for 3 hours. Finally, the filtrate was obtained by filtration, and the filtrate was divided into trays with a larger open area, and subjected to vacuum freeze concentration and drying at 50° C. for 5 hours to obtain crude mung bean peel flavonoids.

[0041] The determination method is the same as ...

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Abstract

The invention relates to a method for extracting flavonoid compounds in mung bean hull, comprising the following specific steps: firstly grinding one part of mung bean hull, then performing extrusionand swelling treatment to the grinded mung bean hull, using organic solution to extract from the grinded puffed material, filtrating to collect extract, performing lyophilization concentration treatment to the extract and obtaining raw flavonoid compounds of mung bean hull. The invention combines the double screw extrusion and swelling technology and organic solvent extraction process to extract flavonoid compounds of mung bean hull, shortens the extraction time, improves the extraction rate, simplifies the operation and is applicable to industrialized production.

Description

technical field [0001] The invention relates to a method for extracting flavonoids, in particular to a method for extracting flavonoids in mung bean skin. Background technique [0002] Mung bean, also known as green bean or planting beans, is the mature seed of the leguminous plant mung bean, which has a cultivation history of more than two thousand years in my country. Mung beans are not only rich in nutrition, but also have the pharmacological effects of reducing heat and detoxification according to the theory of traditional Chinese medicine. They are known as beans with the same origin of medicine and food. The main components of mung bean cotyledon are starch and protein, and its detoxifying and refreshing health components are basically located in mung bean skin. Studies have shown that mung bean skin is rich in high-efficiency antioxidant components, mainly flavonoids. Flavonoids in mung bean skin have the functions of anti-oxidation, enhancing immunity, lowering bloo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K36/48C07D311/30
Inventor 张延杰邬海雄杨公明杜冰姜龙波
Owner JUXIANGYUAN HEALTH FOOD ZHONGSHAN
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