INSECTICIDE COMPOSITION BASED ON PYRETHRINS AND ESSENTIAL OILS AND PROCESS FOR PREPARING THE SAME

• Main Authors: PAIRAULT ADRIANA LILIANA, VELEA SANDA, STEPAN EMIL, OANCEA FLORIN, STILPEANU DANIELA LELIEANA
• Format: Patent
• Language: English; Romanian
• Published: 30.10.2013
• Subjects: AGRICULTURE; ANIMAL HUSBANDRY; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES, AS HERBICIDES; FISHING; FORESTRY; HUMAN NECESSITIES; HUNTING; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS; PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTSTHEREOF; TRAPPING

The invention relates to an insecticide composition and to a process for preparing the same. The claimed composition comprises a 50% pyrethrum concentrate, dill (Anethum graveolens) seed essential oil and/or parsley (Petroselinum crispum) seed essential oil and/or lovage (Levisticum officinale) leaf essential oil, non-ionic surface active agents of vegetal origin, sodium coco sulphate, soy lecithin, coco glucoside and solvent. The claimed process consists in preparing the solvent by a reaction of transesterification of sunflower and/or rapeseed and/or soybean vegetable oils, in ethyl alcohol in excess and in the presence of potassium hydroxyde, extracting the essential oils from the vegetable material by soaking in solvent for 14 days at a temperature of 20...25°C, filtering the macerate to obtain the solvent used for preparing the pyrethrin-containing insecticide compositions. Invenţia se referă la o compoziţie insecticidă şi la un procedeu pentru obţinerea acesteia. Compoziţia conform invenţiei este constituită din concentrat de piretru 50%, uleiuri esenţiale din seminţe de mărar,, şi/sau din seminţe de pătrunjel,, şi/sau frunze de leuştean,, agenţi tensioactivi neionici de origine vegetală, cocosulfat de sodiu, lecitină de soia, glucozidă de cocos şi solvent. Procedeul conform invenţiei constă din prepararea solventului printr-o reacţie de transesterificare a uleiurilor vegetale de floarea-soarelui şi/sau rapiţă şi/sau soia, în exces de alcool etilic şi în prezenţă de hidroxid de potasiu, extracţia uleiurilor esenţiale din materialul vegetal prin macerare timp de 14 zile la o temperatură de 20...25°C în solvent, filtrarea maceratului, cu obţinerea solventului utilizat la realizarea compoziţiilor insecticide cu piretrine.