Valerian extract and preparation method and use thereof

A valerian extract and extract technology, which is applied in the field of valerian extract and its preparation, can solve the problems of complex methods and large percolation liquid volume, and achieve the effects of less dosage, short heating time and less damage

Inactive Publication Date: 2009-04-01
BEIJING WBL PEKING UNIV BIOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The patent CN1475490A uses supercritical extraction and organic solvent extraction to extract valerian volatile oil and total valerianin. The method of percolation extracts the total valerianin, the percolation liquid is large, and the recovery of the solvent under reduced pressure requires a long heating process

Method used

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  • Valerian extract and preparation method and use thereof
  • Valerian extract and preparation method and use thereof
  • Valerian extract and preparation method and use thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0082] Embodiment 1: the preparation of valerian root extract

[0083]Crush 2 kg of Valeriana officinalis into coarse powder, pass through a 10-mesh sieve, place in an extraction kettle, add 2.5 kg of 95% ethanol, conduct static extraction at 30 MPa and 40°C for 2 hours; then dynamically extract for 2 hours, dissolve Supercritical CO with extracts 2 Enter in the separating tank and analyze and separate, and the ethanol in the extract is recovered under reduced pressure to obtain 140 g of the valerian root extract.

Embodiment 2

[0084] Embodiment 2: the preparation of valerian extract

[0085] Pulverize 2 kg of Valeriana officinalis into coarse powder, cross a 10-mesh sieve, place in an extraction kettle for extraction, the extraction pressure is 25Mpa, and the extraction temperature is 40°C, adding entraining agent ethanol (accounting for 10% of carbon dioxide by mass percentage) wherein %), extraction time 2h, dissolved in supercritical CO 2 Enter in the separating tank and analyze and separate, and the ethanol in the extract is recovered under reduced pressure to obtain 100 g of valerian root extract.

Embodiment 3

[0086] Embodiment 3: the preparation of valerian root extract

[0087] Crush 2 kg of Valeriana officinalis into coarse powder, pass through a 10-mesh sieve, place in an extraction kettle, add 2.5 L of ethyl acetate, conduct static extraction at 25 MPa and 40 °C for 1 hour, and then dynamically add entrainer, at this time The entrainer is ethyl acetate (accounting for 5% of carbon dioxide by mass percentage), extracted for 2h under the same extraction pressure and temperature conditions, and the supercritical CO dissolved in the extract 2 Enter in the separating kettle and analyze and separate, and the ethyl acetate in the extract is recovered under reduced pressure to obtain 120 g of valerian root extract.

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Abstract

The invention relates to a setwall extract with hypnotic sedative activity and the preparation thereof and also comprises the application of the extract in the pharmacy field. The extract essentially consists of setwall naphtha, valerienic acid, total valepotriate, etc. The pharmacodynamical experiment shows that the setwall extract made by the technology has the marked pharmacological actions of mitigation, hypnosis, anti-depression, spasmolysis, analgesis, the regulation of blood fat, anti-tumor, antibiosis, antivirus and the like and can be developed into medicine or food with health care function.

Description

technical field [0001] The invention relates to a plant extract and its preparation method and application, in particular to a valerian extract and its preparation method and application. Background technique [0002] Valerian is a perennial herbaceous plant belonging to the genus Valeriana in the Patriaceae family. It mainly contains ingredients such as monoterpenes, sesquiterpenes, iridoids, alkaloids, flavonoids, and lignans. It has sedative, hypnotic, and antidepressant properties. , antispasmodic analgesic, regulating blood lipid, antitumor, antibacterial, antiviral and other pharmacological effects. As a mild sedative, tranquilizer, and hypnotic, it has been used in Europe for hundreds of years, and its medicinal value has been valued in the world. [0003] Since the commonly used sedative and hypnotic western medicines have different degrees of drug dependence and addiction, it has become a trend to choose herbal medicines for treatment. Valerian has become one of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K36/185A61P25/20A61P25/24
Inventor 段震文郭树仁何大林刘曦
Owner BEIJING WBL PEKING UNIV BIOTECH
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