Peony petal extract as well as preparation method and application thereof

A technology of peony petals and extracts, applied in the biological field, can solve problems such as the lack of analysis of the medicinal value of peony petals extracts

Active Publication Date: 2021-05-14
瑞莱茵(北京)生物科技有限责任公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The peony petal products or preparations disclosed above are all based on the traditional understanding and efficacy of p

Method used

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  • Peony petal extract as well as preparation method and application thereof
  • Peony petal extract as well as preparation method and application thereof
  • Peony petal extract as well as preparation method and application thereof

Examples

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Comparison scheme
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Example Embodiment

[0035]Example 1, prepared peony petals extract A

[0036]First, the preparation method of peony flower petal extract A

[0037]The preparation method of the peony flower petal extract A includes the following steps:

[0038](1) Dry the peony petals, pulverize, and the liquid is added to 1 g: 15 mL of malic acid-ethanol-aqueous solution, at 20 ° C, extract 2 times, 30 min each time, collect the combination Extract, resulting in a rough liquid;

[0039](2) The rough liquid obtained by step (1) is concentrated under reduced pressure at a temperature of 50 ° C, the pressure is 0.05 MPa, and the relative density is 1.10, and the percentage concentration is 1% in the amount of water. The aqueous sodium hydroxide solution regulates the pH of 13.0, and the insoluble matter was removed by filtration, and the filtered solution was extracted 3 times with ethyl acetate, and the ethyl acetate extract was removed to give alkali water extraction.

[0040](3) The alkali water obtained by step (2) is acidified wit...

Example Embodiment

[0052]Example 2 Preparation of Peony Flower Extract B

[0053]First, the preparation method of peony flower extract B

[0054]The preparation method of peony flower petal extract B includes the following steps:

[0055](1) Dry the peony petals, pulverized, and the liquid is added to 1 g: 20 mL of acetic acid-ethanol-aqueous solution, and extracts 3 times at a temperature of 25 ° C, 30 min, 20min each time. 10 min, collect the combined extract to obtain a rough liquid;

[0056](2) The rough liquid obtained by step (1) is concentrated under reduced pressure at a temperature of 30 ° C, and the pressure is 0.1 MPa, and the relative density is 1.20 with water, the addition volume percent concentration is 3%. The aqueous solution of potassium hydroxide, the solution pH is adjusted to 11.0, and the insoluble matter is removed, and the filtered solution is extracted 3 times with ethyl acetate, and the ethyl acetate extract is removed to obtain an alkali water extraction.

[0057](3) Acid the alkali water ...

Example Embodiment

[0065]Example 3 Preparation of Peony Flower Extract C

[0066]First, the preparation method of peony flower petal extract C

[0067]The preparation method of peony flower petal extract C includes the following steps:

[0068](1) Dry the peony petals, pulverize, the liquid is added 1 g: 12 mL of formic acid-ethanol-aqueous solution, at a temperature of 30 ° C, 3 times, 15 minutes each time, collect the combined extraction Liquid, resulting in a rough liquid;

[0069](2) The rough liquid obtained by step (1) is concentrated under reduced pressure at a temperature of 60 ° C, and the pressure is 0.01 MPa, and the relative density is 1.10, and the addition volume percent concentration is 2%. The potassium hydroxide aqueous solution, the solution pH is adjusted to 12.0, and the insoluble matter is filtered, and the filtered solution is extracted 3 times with ethyl acetate, and the ethyl acetate extract is removed to obtain an alkali water extraction.

[0070](3) The alkali water extract obtained by step...

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Abstract

The invention discloses a peony petal extract as well as a preparation method and the application thereof. The preparation method of the peony petal extract provided by the invention comprises the following steps: (1) drying and crushing peony petals, adding an organic acid-organic solvent-water mixed solvent for ultrasonic extraction, and collecting and combining extracting solutions to obtain a crude extracting solution; (2) concentrating the crude extract obtained in the step (1) under reduced pressure until no organic solvent smell exists, adding an aqueous alkali solution, adjusting the pH value of the solution to 11.0-13.0, filtering to remove insoluble substances, extracting the filtered solution with ethyl acetate, and removing the ethyl acetate extract to obtain an aqueous alkali extract; and (3) acidifying the alkaline water extract obtained in the step (2) with acid water, extracting with ethyl acetate to obtain an ethyl acetate extract, removing the solvent, and drying to obtain the target extract.

Description

technical field [0001] The invention relates to the field of biotechnology, in particular to peony petal extract and its preparation method and application. Background technique [0002] Peony petals can be soaked in water for drinking, which has certain pharmacological effects. The theory of traditional Chinese medicine believes that drinking some peony petal tea in an appropriate amount can regulate the health of the body, and it is a scented tea drink with good efficacy. CN103494206B discloses a preparation process for soft capsules containing peony petal isoflavones and peony seed essential oil. In the provided preparation process, peony petal isoflavones are extracted by biological methods. CN108452035A discloses a method for extracting polyphenols from peony petals, which includes the steps of raw material pretreatment, polyphenol extraction and crude liquid centrifugation, drying peony petals, making powder, and sieving, taking peony petal fine powder and volume frac...

Claims

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Application Information

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IPC IPC(8): A61K36/71A61K36/65A61K8/9789A61P35/00A61Q19/00A23L33/105A61K133/00
CPCA61K36/71A61K36/65A61K8/9789A61P35/00A61Q19/00A23L33/105A61K2236/333A61K2800/82A23V2002/00A23V2300/14A23V2300/48A23V2250/21A23V2200/308
Inventor 舒庆艳马晓丰方令豪
Owner 瑞莱茵(北京)生物科技有限责任公司
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