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Method for extracting insect molting hormone analog in bulge

A technology of ecdysone and extraction method, which is applied in the fields of botanical equipment and methods, chemicals for biological control, plant peptides, etc., can solve the problem that insect ecdysone analogs do not use sinones as raw materials, and achieve economical extraction. Good benefit, simple extraction process and easy operation

Inactive Publication Date: 2006-11-08
迟德富 +1
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problem that the current extraction of insect ecdysteroid analogues does not use Grass sinensis as a raw material, the present invention provides a method for extracting insect ecdysone analogues in Grass sinensis with high extraction purity and high extraction rate

Method used

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specific Embodiment approach

[0011] Specific embodiments: The method for extracting insect ecdysone analogs in Ajuga sylvestris in this embodiment sequentially includes the following steps:

[0012] a. Dry the Ajuga grass to the moisture content of 8-12%, grind it to 40-60 mesh, add alcohol to soak the Ajuga grass powder for 20-28h, after stirring, ultrasonically shake 2-4 times, 2.5-3.5min each time , Filter, keep the filtrate;

[0013] b. Add alcohol to the residue and soak for 0.5-3h, then stir, sonicate 2-4 times, 2.5-3.5min each time, and filter; the filtrate is combined with the filtrate obtained in step a;

[0014] Repeat steps a and b to extract the residue 2-3 times, and combine all the filtrates;

[0015] c. Add 5-6 times the weight of the original Ajuga grass powder to the combined filtrate, reflux for 3-5h, heat and distill the alcohol to recover, and keep the residue after distillation;

[0016] d. Add 4-5 times the volume of water to the distillation residue, stir and boil in a boiling water bat...

specific Embodiment approach 2

[0017] Specific embodiment two: this embodiment is different from specific embodiment one in that the drying temperature for Ajuga in step a is 60°C-65°C, this temperature does not affect the activity of insect ecdysone analogs, and has It is beneficial to improve the drying efficiency, and it is convenient to control the moisture content of Ajuga sinensis after drying.

specific Embodiment approach 3

[0018] Specific embodiment three: This embodiment is different from specific embodiments one and two in that in step a, the Ajuga grass is naturally dried, which can save drying costs, and there is no limit to the amount of natural drying.

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Abstract

The extraction method of insect molting hormone analog in bulge relates to extraction of botanical insect hormone analog. The extraction method of insect molting hormone analog in bulge is one combining alcohol extraction, water precipitation and ultrasonic extraction. Through ultrasonic vibration and repeated extraction of the residue, the present invention has high extracting rate, high extract purity, simple extraction process and no environmental pollution.

Description

Technical field [0001] The invention relates to a method for extracting plant-derived insect hormone analogues, and belongs to the field of extraction methods for plant-derived insect hormone analogues. Background technique [0002] Plant-derived ecdysone analogs are a type of specific secondary metabolites contained in some plants. Such substances can be widely used in the regulation of insect growth and development, the control of harmful insects in agriculture and forestry, the breeding of economic insects such as silkworms, and the breeding and elimination of other arthropods. Extracting insect ecdysone analogues from plants has also become a hot spot in research, development and production. There have been research, production and patents on extracting insect ecdysone analogs from plants such as dew grasses. However, there is no method for extracting insect ecdysone analogues using Ajuga as a raw material. Summary of the invention [0003] Aiming at the problem that the cur...

Claims

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Application Information

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IPC IPC(8): C07K14/415A01N37/18A01N65/00A01P15/00
Inventor 迟德富严善春
Owner 迟德富
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