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Mahonia bealei extract, and preparation method and application thereof to resistance of tobacco black shank

A technology of broad-leaved top ten merits and extracts, applied in botanical equipment and methods, chemicals for biological control, applications, etc., to achieve the effects of reducing soil pesticide residues, simple process flow, and easy extraction and production

Inactive Publication Date: 2016-10-12
湖南省农业生物资源利用研究所
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, there are relatively few reports on plant extracts for the prevention and treatment of tobacco black shank in the prior art. This morning, a plant extract with high efficiency, low toxicity, broad spectrum, low resistance and low cost was developed to prevent and control tobacco black shank. shin disease has just become a technical problem to be solved urgently for those skilled in the art

Method used

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  • Mahonia bealei extract, and preparation method and application thereof to resistance of tobacco black shank
  • Mahonia bealei extract, and preparation method and application thereof to resistance of tobacco black shank
  • Mahonia bealei extract, and preparation method and application thereof to resistance of tobacco black shank

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Embodiment

[0031] A kind of broad-leaved top ten merits extract of the present invention, the broad-leaved ten majors merits extract uses broad-leaved ten majors merits as extraction raw material, uses ethanol solution as extraction solvent, after at least two times of heating alcohol extraction, alcohol extraction solution It was prepared after concentration under reduced pressure.

[0032] The preparation method of the broad-leaved ten major meritorious service extracts in the present embodiment specifically comprises the following steps:

[0033] (1) First, crush the broad-leaved top ten fruits, pass through a 200-mesh sieve, weigh 100.00g of broad-leaved top ten fruits as raw materials, pour them into a round bottle with electric heating mantle, and then add 1000ml of 75% ethanol solution into the electric heating mantle in a round bottle;

[0034] (2) Turn on the heating device (electric heating mantle) to heat the electric heating mantle round bottle, control the heating temperatu...

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Abstract

A Mahonia bealei extract is prepared from a Mahonia bealei raw material and ethanol solution as an extraction solvent by at least two times of heating alcohol extraction, and vacuum concentration of the alcohol extract. The specific preparation steps are as below: adding the raw material and ethanol solution into an extraction vessel; starting a heating device for heating the extraction vessel, conducting pump filtration after first extraction, adding the filter residue to the extraction vessel, starting the heating device for heating the extraction vessel, conducting pump filtration after second extraction, emerging the first alcohol extract and second alcohol extract, and then conducting vacuum concentration in concentration equipment to obtain a Mahonia bealei paste extract for preservation. The extract of the invention has the advantages of high efficiency, low toxicity, easy degradation, no residue, no pollution, environmental protection and low cost, and can be used to control tobacco black shank.

Description

technical field [0001] The invention belongs to the technical field of sterilizing plant-derived preparations, and in particular relates to an extract of ten major merits, a preparation method thereof and an application in anti-tobacco black shank. Background technique [0002] Tobacco black shank Phytophthora parasitica var.nicotianae (Vann Breda de Haan) is one of the main diseases of tobacco in China. The average incidence rate of tobacco in China is 5% to 12%, and the incidence rate of severe fields is as high as 75%, even resulting in crop failure. Tobacco production causes huge economic losses. According to incomplete statistics, in tobacco production from 1989 to 1991, the output value loss caused by the five major diseases of tobacco mosaic virus, red spot, black shank, bacterial wilt and root-knot nematode exceeded 1.5 billion yuan. Among these five diseases, the economic loss caused by tobacco black shank is as high as 369 million yuan. Once black shank occurs, it...

Claims

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Application Information

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IPC IPC(8): A01N65/08A01P3/00
CPCA01N65/00A01N65/08
Inventor 周佳民巢进朱三荣宋荣曹亮朱校奇
Owner 湖南省农业生物资源利用研究所
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