Application and preparation method for piperine substances in pepper extract

A technology of pepper extract and piperine is applied in the field of pesticide application to achieve the effects of reducing dosage, saving manpower and reducing costs

Inactive Publication Date: 2014-12-03
山西鑫中大生物科技有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that a natural non-toxic synergist is urgently needed to replace the traditional chemical synergist, the present invention provides an application of piperine in pepper extract and its preparation method

Method used

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  • Application and preparation method for piperine substances in pepper extract
  • Application and preparation method for piperine substances in pepper extract
  • Application and preparation method for piperine substances in pepper extract

Examples

Experimental program
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Effect test

Embodiment 1

[0046] The preparation method of piperine substance in pepper extract, described pepper is black pepper ( Piper nigrum ), the steps are:

[0047] (1) Dry the immature black pepper seeds, crush them to a particle size of 5 mesh, put them into the extraction tank, start stirring to make the materials in the tank pile up flat; turn on the vacuum pump to adjust the vacuum degree in the extraction tank to 0.02-0.08 MPa, Inject liquid subcritical fluid R134a as a solvent, stir and mix with the raw materials until the liquid level is higher than the raw materials; control the extraction temperature in the extraction tank to 40°C, the pressure to 1.0MPa, and the soaking and extraction time to 100min; ultrasonic treatment is performed while soaking and extracting. 1 min, intermittent 6 min, and so on repeatedly; after the extraction is completed, turn off the ultrasound, separate the solid and liquid phases, and transport the liquid phase mixture into the temporary storage tank; 1. Th...

Embodiment 2

[0054] The preparation method of piperine substance in pepper extract, described pepper is long pepper ( Piper longum ), the steps are:

[0055] (1) Dry the immature seeds of long pepper, crush them to a particle size of 20 mesh, put them into the extraction tank, start stirring, so that the materials in the tank are piled up flat; turn on the vacuum pump to adjust the vacuum degree in the extraction tank to between 0.02 and 0.08 MPa, Inject liquid subcritical fluid R134a as a solvent, stir and mix with the raw materials until the liquid level is higher than the raw materials; control the extraction temperature in the extraction tank to 60°C, the pressure to 0.7MPa, and soak and extract for 30 minutes; perform ultrasonic treatment while soaking and extracting. 4 minutes, intermittent 10 minutes, repeat this cycle; after the extraction is completed, turn off the ultrasound, separate the solid and liquid phases, and transport the liquid phase mixture into the temporary storage ...

Embodiment 3

[0062] The preparation method of piperine substance in pepper extract, described pepper is Piper cubeba ( Piper cubeba) , the steps are:

[0063] (1) Dried the immature seeds of cubeb cubeb, crushed them to a particle size of 40 mesh, put them into the extraction tank, and started stirring to make the materials in the tank pile up flat; turn on the vacuum pump to adjust the vacuum degree in the extraction tank to between 0.02 and 0.08 MPa , inject liquid subcritical fluid R134a as a solvent, stir and mix with the raw materials until the liquid level is higher than the raw materials; control the extraction temperature in the extraction tank to 30°C, the pressure to 0.3MPa, and soak and extract for 180min; perform ultrasonic treatment while soaking and extracting, Treat for 7 minutes, rest for 2 minutes, and repeat the cycle; after the extraction is completed, turn off the ultrasound, separate the solid and liquid phases, and transport the liquid phase mixture into the temporar...

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Abstract

The invention relates to the technical field of pesticide application, and in particular relates to application and a preparation method of piperine substances in a pepper extract, and application of the piperine substances in the pepper extract as an insecticide synergist. The piperine substances in the pepper extract disclosed by the invention come from natural plants, is a green and pollution-free product, and has no toxicity to a human body and the environment; the insecticide synergist is the first natural plant-source pesticide synergist in the pesticide history of the world so far, and is an international pioneer; the synergistic effect of the substances on main pesticides is obvious, the insecticidal efficiency of insecticide products with the product disclosed by the invention can be increased by 10.6-30.2% compared with products without the product disclosed by the invention, and the efficacy can be improved by 24.5-30.2% with regard to natural pyrethrin insecticides.

Description

technical field [0001] The invention relates to the technical field of pesticide application, in particular to the application and preparation method of piperine substances in pepper extract. Background technique [0002] The increasing population of the world and the continuous reduction of arable land determine that agricultural production will be inseparable from pesticides for a long period of time in the future. Currently, chemical pesticides are the main method of pest control, unfortunately, more and more facts prove that the use of chemical pesticides has brought many disastrous results to human beings and the environment. In the past 30 years, the combination of biotechnology and pesticide science has produced a variety of biologically related substances with pesticide functions, which are biological pesticides. Plant-derived biological pesticides are one of the most important categories due to their high efficiency, broad-spectrum, safety, low toxicity and no res...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N65/08A01N65/12A01N43/40A01P7/04A01N53/08A01N43/90
CPCY02A50/30
Inventor 毛静琴米文精约翰﹒阿纳森增毅﹒崔刘英翠田建华
Owner 山西鑫中大生物科技有限公司
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