A method for extracting raspberry dried fruit flavonoids

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, shortening extraction time and improving extraction rate.

Active Publication Date: 2022-03-11
XUZHOU UNIV OF TECH
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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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  • A method for extracting raspberry dried fruit flavonoids
  • A method for extracting raspberry dried fruit flavonoids
  • A method for extracting raspberry dried fruit flavonoids

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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 for crushing, and after repeated crushing, 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 tubes. A...

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Abstract

A method for extracting flavonoids from raspberry dried fruit. Putting artificially depeded raspberry dried fruit into a pulverizer to pulverize, and after repeated crushing, put the raspberry dried fruit powder sample into a sealed bag for preservation; weigh 3g of raspberry dried fruit powder Put the sample into a beaker, add 2mg / mL pectinase under the condition of 30:1 liquid-to-material ratio, then put the solution in a constant temperature water bath at 50°C and let it stand for 40min; take the solution out and put it into flash extraction In the device, the extraction process was carried out twice under the conditions of extraction time 25S and extraction power 75V; after extraction, the solution was evenly divided into two centrifuge test tubes, and after balancing, the centrifugation was performed under the conditions of rotation speed 3500r and centrifugation time 15min , the centrifuged supernatant was suction-filtered, the resulting filtrate was transferred to a beaker, and the ethanol solution with a volume fraction of 60% was used to set the volume to a 100mL volumetric flask to obtain an extract. The method can quickly and effectively extract flavonoids 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 Patents(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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