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Zanthoxylum bungeanum leaf extract and its application in the preparation of biological pesticides

The technology of Zanthoxylum bungeanum leaves and extract is applied to the Zanthoxylum bungeanum leaf extract and its application field in the preparation of biological pesticides, which can solve the problems of natural ecological destruction, heavy burden on farmers, environmental pollution and the like, and achieves low preparation cost, remarkable effect, The effect of huge social and economic benefits

Active Publication Date: 2017-11-10
CHONGQING HONOROAD ANIMAL HEALTH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, in order to control its harm, farmers have to frequently apply pesticides, which not only increases the burden on farmers, but also pollutes the environment and destroys the natural ecology.

Method used

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  • Zanthoxylum bungeanum leaf extract and its application in the preparation of biological pesticides

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Example 1 Preparation of Zanthoxylum bungeanum leaf extract

[0013] After the mature Zanthoxylum bungeanum is picked, pick the Zanthoxylum bungeanum leaf and dry it in the shade, weigh 0.3 kg of the dried Zanthoxylum bungeanum leaf, put it in a casserole filled with water and boil for 1 hour, filter, and decoct the liquid for later use; repeat adding water and decocting for 2 times, each time for 1 hour , Combine the decoction of 3 decoctions. Heat and concentrate the decoction to 15%-20% of the original volume, then add an equal volume of ethyl acetate to extract three times, combine the organic phases extracted three times, heat to remove ethyl acetate, dry at 60°C, and pulverize to obtain 9.4 grams of Zanthoxylum bungeanum leaf extract powder.

Embodiment 2

[0014] Example 2 Preparation of Zanthoxylum bungeanum leaf extract

[0015] After the mature Zanthoxylum bungeanum is picked, pick the Zanthoxylum bungeanum leaf and dry it in the shade, weigh 0.3 kg of the dried Zanthoxylum bungeanum leaf, put it in a casserole filled with water and boil for 1 hour, filter, and decoct the liquid for later use; repeat adding water and decocting for 2 times, each time for 1 hour , Combine the decoction of 3 decoctions. The decoction was heated and concentrated to a paste, dried at 60°C, and pulverized to obtain 28.5 g of Zanthoxylum bungeanum leaf extract powder.

Embodiment 3

[0016] Example 3 Preparation of Zanthoxylum bungeanum leaf extract

[0017] After the mature Zanthoxylum bungeanum is picked, pick the Zanthoxylum bungeanum leaf and dry it in the shade, weigh 0.3 kg of the dried Zanthoxylum bungeanum leaf, put it in a casserole filled with water and boil for 1 hour, filter, and decoct the liquid for later use; repeat adding water and decocting for 2 times, each time for 1 hour , Combine the decoction of 3 decoctions. Heat and concentrate the decoction to 15%-20% of the original volume, then add an equal volume of petroleum ether to extract three times, combine the organic phases extracted three times, heat to remove petroleum ether, dry at 60°C, and crush to obtain 14.9 grams Pepper Leaf Extract Powder.

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Abstract

The invention relates to a bunge pricklyash leaf extract and application thereof for preparing biopesticide. The bunge pricklyash leaf extract is an ethyl acetate extractant of a bunge pricklyash leaf water extract. The preparation method for the bunge pricklyash leaf extract comprises the steps that bunge pricklyash leaves are picked to be dried in the shade, water is added for decoction and extraction 1-5 times, decoction solutions are combined, and the combined solution is heated and concentrated to be 5-50% of the original decoction solutions in volume; then, ethyl acetate is added for extraction, the extracted organic phase is heated to remove the ethyl acetate, and drying and smashing are performed to obtain the bunge pricklyash leaf extract. According to the bunge pricklyash leaf extract, the bunge pricklyash leaves are collected as the raw materials after bunge pricklyash is picked, waste is turned into wealth, the preparation cost is low, and significant social and economic benefits are brought.

Description

technical field [0001] The invention belongs to the technical field of extraction of plant active ingredients, and in particular relates to a Zanthoxylum bungeanum leaf extract and its application in the preparation of biological pesticides. Background technique [0002] Zanthoxylum bungeanum belongs to small trees or shrubs of Rutaceae, distributed in south-central, southwest and Liaoning, Hebei, Shaanxi, Gansu, Shandong, Jiangsu, Anhui, Zhejiang, Jiangxi, Tibet and other places. The development scale of Dahongpao Zanthoxylum bungeanum in Fengxian County has reached 44 million plants, and 17 pepper demonstration gardens of 1,000 mu and 2 pepper demonstration gardens of 10,000 mu have been built. In 2009, the output reached 3,500 tons, with an output value of 140 million yuan, and the per capita income of farmers from pepper reached 1,866 yuan. Zanthoxylum bungeanum has become the leading agricultural industry in Feng County and the main source of farmers' income. At prese...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N65/36A01P7/04
Inventor 李碧英
Owner CHONGQING HONOROAD ANIMAL HEALTH
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