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Method for extracting flavone from dried raspberries

A technology for dried fruit and raspberry, applied in the field of extracting flavonoids from dried raspberry fruit, can solve the problems of high cost and short shelf life of fresh raspberry fruit, and achieve the effects of efficient extraction, shortened extraction time and reduced solvent consumption.

Active Publication Date: 2020-10-09
XUZHOU UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the shelf life of fresh raspberry fruit processed in this way is also shorter, and the cost is also higher

Method used

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  • Method for extracting flavone from dried raspberries
  • Method for extracting flavone from dried raspberries
  • Method for extracting flavone from dried raspberries

Examples

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Embodiment Construction

[0042] The present invention will be further described below in conjunction with embodiment.

[0043] The invention provides a method for extracting raspberry dried fruit flavonoids, comprising the following steps:

[0044] S1: Put the dried raspberry fruit that has been artificially destemmed into a pulverizer to pulverize, and after repeated pulverization, put the powder in a sealed bag for storage to obtain a dried raspberry fruit powder sample;

[0045] S2: Accurately weigh 3g of raspberry dried fruit powder sample, put it into a beaker, add 2mg / mL pectinase under the condition of 30:1 liquid-to-material ratio, and then put the solution into a constant temperature water bath at 50°C and let it stand 40min;

[0046] S3: Take out the solution, put it into a flash extractor, and carry out 2 extraction treatments under the conditions of extraction time 25S and extraction power 75V;

[0047] S4: After the extraction, the solution is evenly distributed in two centrifuge test tub...

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Abstract

A method for extracting flavone from dried raspberries comprises the following steps of: pulverizing dried raspberries subjected to artificial pedicle removal in a pulverizer, repeatedly pulverizing the dried raspberries for multiple times, and storing a dried raspberry powder sample in a sealed bag; weighing 3g of the dried raspberry powder sample, putting the dried raspberry powder sample into abeaker, adding 2mg / mL of pectinase under the condition of a liquid-to-material ratio of 30: 1, putting the solution into a constant-temperature water bath kettle at 50 DEG C, and standing for 40 minutes; taking out the solution, putting the solution into a flash extractor, and carrying out extraction treatment twice under the conditions that the extraction time is 25S and the extraction power is75V; after the extraction is finished, uniformly dividing the solution into two centrifugal test tubes; and after balancing, carrying out centrifugal treatment at the rotating speed of 3500r for 15 minutes, carrying out suction filtration on the centrifuged supernatant, transferring the obtained filtrate into a beaker, and fixing the volume to a 100mL volumetric flask by using an ethanol solutionwith the volume fraction of 60%, so as to obtain an extracting solution. The method can be used for rapidly and effectively extracting flavone from raspberries.

Description

technical field [0001] The invention belongs to the technical field of natural extracts, and in particular relates to a method for extracting flavonoids from dried raspberries. Background technique [0002] Flavonoids, also known as flavonoids or flavonoids, are rich in types. They are a series of compounds connected by two benzene rings (A ring and B ring) through C3 to form C 6 -C 3 -C 6 Structure is a very important class of natural organic compounds in the process of photosynthesis of plants. Flavonoids play a good role in antioxidant capacity, antibacterial and antiviral. The most prominent effect of flavonoids is its antioxidant capacity. Flavonoids have a strong ability to scavenge DPPH free radicals, hydroxyl free radicals and ABTS+ free radicals in cells in the body. These free radicals are extremely unstable in the cell body. They will oxidize the cell and destroy the tissue structure in the cell to obtain energy to stabilize itself. Flavonoids will undergo a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K36/73A61P39/06A61P31/04A61P31/12
CPCA61K36/73A61P39/06A61P31/04A61P31/12A61K2236/19
Inventor 师聪李哲马世臣尼再中张建萍陈尚龙
Owner XUZHOU UNIV OF TECH
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