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Paeonia lactiflora extract as well as preparation method and application thereof

A peony flower and extract technology, which is applied in the field of peony flower extract and its preparation, can solve the problems of low content of paeoniflorin and paeonifloride, and achieve the effects of stable quality, good quality, and simple process operation

Active Publication Date: 2022-04-22
ZHEJIANG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a method for efficiently extracting the active components of Paeoniae officinalis, so as to solve the problem of low content of gallic acid, paeoniflorin and paeoniflorin in the extract of Paeoniae officinalis in the prior art

Method used

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  • Paeonia lactiflora extract as well as preparation method and application thereof
  • Paeonia lactiflora extract as well as preparation method and application thereof
  • Paeonia lactiflora extract as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] 1. Extraction method

[0058] Grind 1 kg of dried peony flower buds, add 80% (v / v) ethanol aqueous solution according to the ratio of 1g:20mL of solid to liquid, control the temperature at 50°C, and let it stand for 24 hours; separate the extract from the peony flower powder, pass Ethanol was evaporated under reduced pressure to obtain a concentrated solution, and then the concentrated solution was diluted with water until the pH of the obtained diluted solution was 6, and the diluted solution was freeze-dried to obtain 362.7 g of Paeoniae officinalis flower extract.

[0059] 2, the extract is carried out component analysis, the results are shown in Table 1 and figure 1 As shown, it is clear that 1,2,3,4,6-O-pentagalloylglucose, gallic acid, paeoniflorin and paeoniflorin are the main active ingredients, and their structural formulas are as shown in formulas (I)-(IV) Show:

[0060]

[0061]

Embodiment 2

[0080] 1. Extraction method

[0081] Add 1kg of dried peony flower buds according to the solid-liquid ratio of 1g:20mL, add 80% (v / v) ethanol aqueous solution, control the temperature at 50°C, and let stand for 24h; separate the extract from the peony flower powder, and decompress The ethanol was evaporated and recovered to obtain a concentrated solution, and then the concentrated solution was diluted with water until the pH of the obtained diluted solution was 7, and the diluted solution was freeze-dried to obtain 358.2 g of Paeoniae officinalis flower extract.

[0082] 2. The extract was analyzed for components, and the results are shown in Table 2.

Embodiment 3

[0084] 1. Extraction method

[0085] Add 1kg of dried peony flower buds according to the solid-liquid ratio of 1g:20mL, add 80% (v / v) ethanol aqueous solution, control the temperature at 50°C, and let stand for 24h; separate the extract from the peony flower powder, and decompress The ethanol was evaporated and recovered to obtain a concentrated solution, and then the concentrated solution was diluted with water until the pH of the obtained diluted solution was 5, and the diluted solution was freeze-dried to obtain 349.6 g of Paeoniae officinalis flower extract.

[0086] 2. The extract was analyzed for components, and the results are shown in Table 2.

[0087] Table 2

[0088]

[0089] As shown in Table 2, the content of active ingredients in the extracts of Examples 1, 2, and 3 is different due to the difference in pH value, wherein the 1,2,3,4,6-O-pentagall of Examples 2,3 The content of acylglucose decreased and the content of gallic acid increased, indicating that at ...

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Abstract

The invention discloses a peony flower extract as well as a preparation method and application thereof, and belongs to the technical field of plant extraction. The preparation method of the paeonia lactiflora extract comprises the following steps: (1) crushing dried paeonia lactiflora buds, adding an ethanol aqueous solution with the volume ratio of 60%-90% according to the solid-liquid ratio of 1g: (10-30) mL, and leaching at the temperature of 30-60 DEG C to obtain a leaching solution; and (2) removing ethanol in the leaching solution to obtain a concentrated solution, diluting the concentrated solution with water until the pH value is 5-7, and then drying to obtain the peony flower extract. According to the method, main components in the paeonia lactiflora are defined, efficient extraction of four active components in the paeonia lactiflora is achieved, the process is easy and convenient to operate, and the obtained paeonia lactiflora extract is good in quality and stable in quality. The peony flower extract prepared by the invention has the effects of resisting oxidation, resisting aging, blocking sun, whitening, resisting wrinkles and the like, and provides powerful support for the application of the peony flower extract in the aspects of food and cosmetics.

Description

technical field [0001] The invention relates to the technical field of plant extraction, in particular to a peony flower extract and a preparation method and application thereof. Background technique [0002] Paeonia lactiflora Pall (Paeonia lactiflora Pall) is a perennial herb of the genus Paeoniae in the family Ranunculaceae. It is a herbaceous plant that can be used both as medicine and food, and has the function of prolonging life and prolonging life. It is cultivated as a traditional Chinese medicine and ornamental plant in my country. Its rhizomes can be Used as medicine and health care; buds, leaves and flowers are edible. Paeoniae officinalis extract is the water or alcohol extract of the roots and flowers of the traditional Chinese medicine Paeoniae Alba. The main active ingredients are paeoniflorin and gallic acid compounds. value. [0003] With the development of the times, people pay more and more attention to the application of natural products in skin care pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/9789A61Q19/00A61Q19/08A61Q19/02A61Q17/04A23L33/105
CPCA61K8/9789A61K8/365A61K8/602A61Q19/00A61Q19/08A61Q19/02A61Q17/04A23L33/105A61K2800/522A23V2002/00A23V2200/318A23V2250/21A23V2300/14Y02A50/30
Inventor 陆柏益汪怿璇张大勇刘芸芸吴礼鹏陈祁朱宇航骆靖阳黄伟素
Owner ZHEJIANG UNIV
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