A method for rapid production of pyrethrins

Abstract

The invention discloses a method for rapidly producing pyrethrin. The method comprises culturing callus directly from pyrethrum anther, and extracting pyrethrin from the callus through vortex oscillation and ultrasonic extraction. The method has a fast cultivation rate and short extraction time and can quickly and efficiently produce pyrethrin.

Description

technical field [0001] The invention relates to the technical field of pesticides, in particular to a method for rapidly producing pyrethrins. Background technique [0002] Pyrethrum (Py rethrum cinerariifolium Trev.) is native to Europe, and its research and utilization have a history of nearly one hundred years (Casida, 1973). At the beginning of this century, pyrethrum was widely cultivated all over the world. Introduced in provinces such as Yunnan and Yunnan, the species have recently degenerated, which directly affects the yield and quality of dried flowers. From the 1950s to the 1970s, the main producing countries of pyrethrum dried flowers in the world were once impacted by synthetic insecticides. Since the 1980s, with the enhancement of people's awareness of environmental protection, the application research of pyrethrum has been favored again. Pyrethrins obtained after extraction and processing of inflorescences (referred to as flower heads), because pyrethrins are...

AI Technical Summary

Problems solved by technology

[0003] Pyrethrum is generally propagated mainly by seeds and cuttings, but the current varieties are severely differentiated and the content is reduced. At the same time, if the plant is infected by root-knot nematodes and viruses, it will become a poisonous plant and cannot be used. Based on the above reasons, currently relying on dried pyrethrum The method of extracting and processing the obtained pyrethrins can no longer meet the production needs