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Rhodiola rosea extract and its preparation method and application

A technology of Rhodiola rosea and extracts, applied in botany equipment and methods, applications, chemicals for biological control, etc., can solve problems such as plant phytotoxicity and drug resistance, and affect the application of anti-phytopathogenic fungal preparations, etc. To achieve the effect of environmental friendliness and good development of resources

Inactive Publication Date: 2015-08-19
BEIJING UNIV OF AGRI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the control of plant fungal diseases is still dominated by organic synthetic chemical agents, but the use of a large number of chemical pesticides has brought about a great negative ecological impact, and it is easy to cause phytotoxicity and drug resistance in plants, which seriously affects the resistance to phytopathogenic fungi. Application of formulations in agricultural production

Method used

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  • Rhodiola rosea extract and its preparation method and application
  • Rhodiola rosea extract and its preparation method and application
  • Rhodiola rosea extract and its preparation method and application

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Effect test

Embodiment 1

[0035] Embodiment 1, the preparation of rhodiola rosea extract and its experiment of inhibiting phytopathogenic fungi

[0036] 1. Preparation of Rhodiola rosea extract

[0037] This step prepared the following 14 kinds of Rhodiola rosea extracts: Rhodiola grandis 95% ethanol extract, Rhodiola minor 95% ethanol extract, Rhodiola alpine 95% ethanol extract, Rhodiola grandis petroleum ether Extract, Rhodiola grandiflora ethyl acetate extract, Rhodiola grandiflora water soluble, Rhodiola grandiflora ethyl acetate-petroleum ether eluate, Rhodiola grandiflora ethyl acetate eluate, Rhodiola grandiflora oil Ether extract, Rhodiola florida ethyl acetate extract, Rhodiola florida water soluble, Rhodiola alpine petroleum ether extract, Rhodiola alpine ethyl acetate extract, Rhodiola alpine water soluble. The specific preparation method is as follows:

[0038] 1.1 Preparation of Rhodiola rosea extract

[0039] 1) Grinding and pulverizing the dried root of Rhodiola rosea in liquid nitro...

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Abstract

The invention discloses a rhodiola rosea extract product, a preparation method and an application. The preparation method of the rhodiola rosea extract product comprises the following steps: extracting the root of rhodiola rosea by using 95% of ethanol aqueous solution, and collecting an extract and removing ethanol in the extract to obtain 95% of ethanol extract product of rhodiola rosea, wherein the 95% of ethanol extract product of rhodiola rosea is the rhodiola rosea extract product. The experiment proves that when the concentration of the 95% of ethanol extract product of rhodiola crenulata, 95% of ethanol extract product of rhodiola arctica and 95% of ethanol extract product of rhodiola sachalinensis is 1mg / ml, the rhodiola rosea extract product has obvious inhibition effect for tomato Botrytis germs and cabbage black spot germs. The rhodiola crenulata, rhodiola arctica and / or rhodiola sachalinensis can be used for preparing an inhibitor for tomato Botrytis germs and cabbage black spot germs.

Description

technical field [0001] The present invention relates to rhodiola rosea extract and its preparation method and application. Background technique [0002] Plant pathogenic fungi are widely distributed all over the world, causing diseases of crops, forest trees, vegetables, commercial crops, and ornamental crops, often causing early chlorosis, leaf withering, falling leaves, withering and rot of plants, seriously affecting plant growth and development, yield and quality. Agricultural production and people's livelihood have brought serious losses. At present, the control of plant fungal diseases is still dominated by organic synthetic chemical agents, but the use of a large number of chemical pesticides has brought about a great negative ecological impact, and it is easy to cause phytotoxicity and drug resistance in plants, which seriously affects the resistance to phytopathogenic fungi. Application of formulations in agricultural production. In recent years, with the improvem...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N65/08A01P3/00
Inventor 柳春梅马兰青赵晓萌王树芳冯静郭辉力杨亚东
Owner BEIJING UNIV OF AGRI
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