Method for extracting insecticidal active material from traditional Chinese medicine feather cockscomb and application thereof

A technology of insecticidal active substances and extraction methods, which is applied in the field of extraction of plant active ingredients, can solve the problems of increasing and less research, and achieve the effects of good control effect, simple process, good social benefits and ecological benefits

Inactive Publication Date: 2010-12-22
COCONUT RES INST OF CHINESE ACAD OF TROPICAL AGRI SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Celosia chinensis has a strong antibacterial and anti-inflammatory effect. The research on Semen chinensis has found that its seeds are rich in fatty oils, unsaturated fatty acids and minerals. Celosian, an acidic polysaccharide that has been isolated from the water extract of Semen chinensis , the substance has a hepatoprotective effect and can inhibit the increase of ALT activity. It may be an effect

Method used

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  • Method for extracting insecticidal active material from traditional Chinese medicine feather cockscomb and application thereof
  • Method for extracting insecticidal active material from traditional Chinese medicine feather cockscomb and application thereof
  • Method for extracting insecticidal active material from traditional Chinese medicine feather cockscomb and application thereof

Examples

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Embodiment 1

[0018] 1. Extraction of the insecticidal active substances of the traditional Chinese medicine Qinglong

[0019] Collect all the plant tissues of Cedarwort, wash them with clean water, put them in an indoor air-drying oven at 45°C, dry them for 24 hours, cool and pulverize them to obtain Cinnamon powder; weigh 2kg of Cinnamon powder and place in In the Soxhlet extractor, the organic solvent methanol was added in a ratio of 1:8 by volume, and the temperature was repeatedly extracted at 65°C for more than 18 hours to obtain the extract of Cymbidium chinense; Concentrate under pressure until the extract becomes a viscous paste, which is the crude extract of green squid; after the crude extract of green squid is dissolved with methanol, press the crude extract of green squid: diatomaceous earth=1:5 weight ratio and silicon The diatomaceous earth is mixed evenly, and the solvent methanol is evaporated to obtain a mixture of the crude extract of Cedarwort - diatomaceous earth; the m...

Embodiment 2

[0029] 1. Extraction of the insecticidal active substances of the traditional Chinese medicine Qinglong

[0030] Collect all the plant tissues of Cedarwort, wash them with clean water, put them in an indoor air-drying oven at 50°C, dry them for 18 hours, cool and pulverize them to get Cinnamon powder; weigh 2kg of Cinnamon powder and place in In the Soxhlet extractor, the organic solvent methanol was added in a ratio of 1:10 by volume, and the temperature was 65°C for more than 18 hours, and the extract was obtained; Concentrate under pressure until the extract becomes viscous paste, which is the crude extract of green squid; after the crude extract of green squid is dissolved in methanol, mix it with silicon The diatomaceous earth is mixed evenly, and the solvent methanol is evaporated to obtain a mixture of the crude extract of Cedarwort - diatomaceous earth; the mixture of the crude extract of Cedarwort - diatomaceous earth is extracted with n-hexane and then extracted with...

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Abstract

The invention relates to a method for extracting an insecticidal active material from traditional Chinese medicine feather cockscomb and an application thereof. The method comprises the following steps: cleaning all plant tissues of feather cockscomb, then drying, cooling and grinding the plant tissues to obtain feather cockscomb powder; and extracting by methanol to obtain a feather cockscomb extracting solution; reducing pressure and concentrating the feather cockscomb extracting solution to a viscous paste-shape material to obtain feather cockscomb crude extract; dissolving the feather cockscomb crude extract by methanol, mixing the dissolved feather cockscomb crude extract evenly with kieselguhr and volatilizing solvent methanol to obtain the mixture of feather cockscomb crude extract and kieselguhr; and extracting the mixture by normal hexane before carrying out diethyl ether extraction, collecting diethyl ether extract phase and reducing pressure and concentrating the diethyl ether extract phase to obtain the insecticidal active material extracted from traditional Chinese medicine feather cockscomb. The method of the invention features simple process and effectively retains the insecticidal active material in the traditional Chinese medicine feather cockscomb by chemical extraction. Applied to agricultural pest control, the extract of the insecticidal active material has the characteristics of good control effect, low control cost, no pollution, no residue and the like and boasts good social and economic benefits.

Description

technical field [0001] The invention relates to an extraction method and application of plant active ingredients, in particular to an extraction method and application of a traditional Chinese medicine Qinglong insecticidal active substance. Background technique [0002] Since the 1950s, a large number of organic synthetic insecticides have been used, which has played a major role in pest control. However, the long-term and extensive use of chemical pesticides will bring various disadvantages. The emergence of drug resistance, toxic residues, and environmental pollution have become risk factors that endanger human health, ecological balance, and social development. Compared with chemical pesticides, botanical pesticides have low toxicity to humans and animals, and have little impact on the ecological environment, so they have great development value and application prospects. Screening and discovering new insecticidal active substances from plants, and then developing botan...

Claims

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Application Information

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IPC IPC(8): A01N65/08A01P7/04
CPCY02A50/30
Inventor 钟宝珠吕朝军李洪覃伟权孙晓东马子龙李朝绪
Owner COCONUT RES INST OF CHINESE ACAD OF TROPICAL AGRI SCI
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