Use of ginkgoic acid in use for killing Oncomelania snail distilled from outer seed coat of gingkgo

Abstract

An insecticide for killing oncomelania is prepared from the external seed vessel of gingko through reflux extracting in petroether, alcohol, or ether, vacuum concentrating, separating and purifying by macroreticular resin or chromatography with silicon gel column to obtain the ginkgolic acid mixture, and dissolving it in the aqueous solution of cosolvent.

Description

technical field [0001] The invention belongs to a plant molluscicide, in particular to the use of ginkgolic acid extracted from the outer testa of ginkgo biloba for killing amphibious snails. Background technique [0002] Schistosomiasis is a major infectious disease that seriously endangers people's health and life safety and affects economic and social development. Oncomelania is the only host of schistosomiasis. If snails are eliminated, schistosomiasis will not spread and become popular. Therefore, to achieve the goal of eradicating schistosomiasis by eliminating snails has always been an important strategy and measure for schistosomiasis control in many schistosomiasis-endemic countries. At present, sodium pentachlorophenate and niclosamide are commonly used to kill snails in various countries in the world. Sodium pentachlorophenate has good molluscicidal effect. 50 It is 0.54mg / L. It was once used as a main molluscicide in my country, but its production and use have b...

AI Technical Summary

Problems solved by technology

Ginkgo biloba contains ginkgolic acid, which is the main active ingredient with insecticidal and antibacterial effects, but there is no research report on its molluscicidal effect

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