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Extraction method for total flavone of common cephalanoplos herb

An extraction method and a technology of total flavonoids, which are applied in the fields of medical formulas, functions of food ingredients, and medical preparations containing active ingredients, etc., can solve the problems of long time consumption, and achieve the effects of short time consumption, high yield and simple operation

Inactive Publication Date: 2020-09-25
XUZHOU NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the existing methods for extracting total flavonoids use hot water extraction. This method is low in cost and easy to operate, but generally only a small amount of total flavonoids can be extracted, and this method is time-consuming, so it is urgently needed to be improved.

Method used

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  • Extraction method for total flavone of common cephalanoplos herb
  • Extraction method for total flavone of common cephalanoplos herb
  • Extraction method for total flavone of common cephalanoplos herb

Examples

Experimental program
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Effect test

Embodiment 1

[0021] Such as figure 1 Shown, a kind of extraction method of thistle total flavonoids, comprises the following steps:

[0022] S1: Dried the thistle to constant weight, crushed to at least 40 mesh size and sieved;

[0023] S2: leaching the crushed thistle powder by ultrasonic-assisted extraction to prepare a crude extraction solution of total flavonoids of thistle;

[0024] S3: Concentrating the crude extraction solution of total flavonoids of thistle to 1 / 3 of the original volume with a rotary evaporator to obtain a concentrated solution of crude extraction of total flavonoids of thistle;

[0025] S4: Add ethanol to the crude extraction concentrate of total flavonoids of thistle in step S3, and then precipitate, wash and dry, put in a ventilated place to volatilize the ethanol, freeze at at least -20°C, and freeze-dry for at least 24 hours in a freeze dryer , made from thistle total flavonoids. And the total flavonoids of thistle extracted according to the above extractio...

Embodiment 2

[0036] Crush the thistle through a 40-mesh sieve, put 5g of thistle powder into a conical flask, add distilled water, the ratio of material to water is 1:20, put the conical flask into a water bath for extraction for 45min, and the temperature of the water bath is 50°C. Ultrasonic power is 150W. Then centrifuge at 4000r / min for 10min to take the supernatant, and vacuum-concentrate the supernatant of thistle in a rotary evaporator until the concentrated solution is about 30mL. The concentrated artichoke supernatant was then precipitated with 60% ethanol. After standing for 24 hours, wash and dry the precipitated crude extract of total flavonoids from the bottom layer of thistle, place it in a ventilated place for at least 24 hours to evaporate the ethanol, and freeze it at at least -20°C, and put it in a freeze dryer for at least 48 hours. Freeze-dried within 1 hour to make the total flavonoids powder of thistle, and the extraction rate of total flavonoids reaches 3.573%.

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Abstract

The invention provides an extraction method for total flavone of common cephalanoplos herb. The extraction method comprises the following steps of drying and crushing the common cephalanoplos herb, preparing a common cephalanoplos herb total flavone concentrated solution by a water extraction and alcohol precipitation method, and performing freeze drying to obtain powder. The common cephalanoplosherb extract powder is obtained by taking the common cephalanoplos herb as a raw material, performing water extraction and alcohol precipitation, performing rotary evaporation and performing freeze-drying treatment with a freezer, contains a large amount of total flavone, is a very strong free radical scavenger and singlet oxygen scavenger, and can inhibit the peroxidation of lipid. Compared withan existing common plant total flavone extraction method, the extraction method has the advantages that the yield is relatively high, and the process is relatively simple. On the basis, the antioxidant activity of the total flavone of the common cephalanoplos herb is researched, and a theoretical basis is provided for research, development and utilization of natural alcohol effect dispelling and liver protecting beverages.

Description

technical field [0001] The invention relates to food processing, in particular to a method for extracting total flavonoids from thistle. Background technique [0002] Thistle is distributed in most parts of my country, and generally grows in wasteland, grassland, hillside forest, roadside, thicket, field, forest edge and streamside. During the blooming period from May to June, the whole plant is harvested and dried or used fresh. It is rich in total flavonoids. Among the total flavonoids, mainly the more polar flavonoids can activate alcohol dehydrogenase. The research results show that the ethanol extract of thistle can improve the activity of alcohol dehydrogenase, and has the effect of relieving alcohol. At present, most of the existing methods for extracting total flavonoids use hot water extraction. This method is low in cost and easy to operate, but generally only a small amount of total flavonoids can be extracted, and this method takes a long time, so it is urgentl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K36/28A61P39/06A61P39/02A23L2/38A23L33/105
CPCA23L2/38A23V2002/00A61K36/28A61K2236/15A61K2236/331A23L33/105A61P39/02A61P39/06A23V2200/334A23V2250/2116
Inventor 毛垣元张宁慧田俊李永新彭梓洋王颂恩刘曼杨坤龙
Owner XUZHOU NORMAL UNIVERSITY