Pesticide formulation containing azadirachtin (not less than 300 ppm) and salanin in a formulated product with neem oil
AssigneeT. Stanes and Company Limited
InventorSanthanam Ramarethinam
Life of this patent
Estimating the term…
Abstract
The present invention relates to the extraction of azadirachtin from the Neem seed kernel, wherein a storage stable Neem oil-based emulsion is prepared in concentrate form for pesticide use. The emulsion comprises neem tetranortriterpenoids and neem limonoids including Azadirachtin not less than 300 ppm. The invention also relates to controlling pests by combining extracts of Neem and the custard apple, wherein the custard apple does not affect the pesticidal properties of the limonoids.
Claims24
A process for making a neem oil-based emulsion concentrate containing at least 300 ppm of azadirachtin, comprising the steps of, in order:
- a) preparing neem seeds from neem fruits,
- b) preparing neem seed kernels from the neem seeds,
- c) preparing neem oil from the neem seeds,
- d) preparing an azadirachtin concentrate extract containing at least 300 ppm of azadirachtin by solvent extraction of the neem seed kernels and thereafter purifying by reverse osmosis,
- e) reducing an oil density of the neem oil by thermic processing under controlled conditions,
- f) emulsifying the neem oil,
- g) dosing the emulsified neem oil with the azadirachtin concentrate extract to yield a pesticide containing at least 300 ppm of azadirachtin.
Dependencies are inferred from the claim text.