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Extraction process for flavonoid compounds in flower of sunset Abelmoschus

A technology of flavonoids and extraction process, applied in sugar derivatives, sugar derivatives, organic chemistry, etc., can solve the problems of cumbersome process, low yield, and long time consumption

Inactive Publication Date: 2016-03-30
GUIZHOU NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional extraction methods have problems such as long time-consuming, cumbersome process, low extraction efficiency, and low yield. Therefore, it is particularly necessary to provide an extraction process for flavonoids in hollyhock flowers that can effectively solve the above problems.

Method used

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  • Extraction process for flavonoid compounds in flower of sunset Abelmoschus
  • Extraction process for flavonoid compounds in flower of sunset Abelmoschus
  • Extraction process for flavonoid compounds in flower of sunset Abelmoschus

Examples

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Effect test

Embodiment 1

[0100] The extraction process of flavonoids (hyperoside, isoquercitrin and quercetin) in hollyhock flowers specifically includes the following steps: dry the hollyhock flowers and pulverize them, pass through a No. 4 sieve in the Pharmacopoeia, take the hollyhock flower powder, add % ethanol, after weighing, ultrasonically extract at 200W for 60min, add ethanol to make up the weight after cooling to room temperature, then centrifuge, take the supernatant and filter.

Embodiment 2

[0102] The extraction process of flavonoids (hyperoside, isoquercitrin and quercetin) in hollyhock flowers specifically comprises the following steps: dry the hollyhock flowers and pulverize them, pass through a No. 4 sieve of the pharmacopoeia, take the hollyhock flower powder, add % ethanol, after weighing, ultrasonically extract at 400W and 30°C for 40min, cool to room temperature, add ethanol to make up the weight, then centrifuge, take the supernatant and filter it.

Embodiment 3

[0104] The extraction process of flavonoids (hyperoside, isoquercitrin and quercetin) in hollyhock flowers specifically comprises the following steps: after drying the hollyhock flowers, they are pulverized, sieved through No. % ethanol, after weighing, ultrasonic extraction at 300W for 50min, cooling to room temperature, adding ethanol to supplement the weight, followed by centrifugation, and taking the supernatant to pass through a 0.45μm microporous membrane. Wherein, the solid-liquid ratio of hollyhock flower powder and ethanol is: mass of hollyhock flower powder:volume of ethanol=0.1:15g / mL.

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Abstract

The invention discloses an extraction process for flavonoid compounds in the flower of sunset Abelmoschus. According to the invention, experiments are carried out to comprehensively investigate influence of a plurality of factors including ultrasonic power, ethanol concentration, extraction time, extraction temperature, a material-liquid ratio and the like on extraction of the flavonoid compounds in the flower of sunset Abelmoschus, and extraction conditions are optimized by using a response surface model; and the obtained extraction process can easily, accurately and highly-efficiently extract the flavonoid compounds in the flower of sunset Abelmoschus. Compared with the prior art, the extraction process has the advantages of scientific and reasonable technology, simple and easily realizable operation, short extraction time, mild extraction conditions, easiness in controlling, low cost, easiness in realization of industrial mass production and high yield of the extracted flavonoid compounds.

Description

technical field [0001] The invention relates to a process for extracting flavonoids from hollyhock flowers, and specifically belongs to the technical field of plant extraction. Background technique [0002] The hollyhock flower is the dry corolla of the Malvaceae plant hollyhock (Abelmoschusmanihot (L.) Medic.). It was first recorded in "Jiayou Materia Medica". Hollyhock has the effects of clearing away heat and promoting dampness, reducing swelling and detoxification. It is mainly used to treat damp-heat stagnation, turbid stranguria and edema, and externally treat carbuncle, ulcer, swollen toxin, and burns caused by water and fire. It is included in "Chinese Pharmacopoeia" (2010 edition one). Hollyhock flowers are rich in flavonoids, such as hyperoside, isoquercitrin, quercetin, myricetin, rutin, etc. At present, there are many researches on the activity of flavonoids in hollyhock flowers. Studies have shown that hyperoside has antiviral activity, protects the liver, pr...

Claims

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Application Information

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IPC IPC(8): C07D311/30C07D311/40C07H17/07C07H1/08
CPCC07D311/30C07D311/40C07H1/08C07H17/07
Inventor 江帆陈海龙李明
Owner GUIZHOU NORMAL UNIVERSITY