Extrações de óleos de sementes de citros e suas atividades sobre a formiga cortadeira Atta sexdens e seu fungo simbionte

Abstract

= Citrus seed oils extractions and their activity against leaf cutting ant Atta sexdens and its symbiotic fungus. *[Seeds of Citrus sinensis, C. limon, & C. reticulata were extracted with hexane in a soxhlet apparatus& through supercritical fluid (CO2). Besides triglycerides, the oils obtained with hexane comprised volatile compounds such as terpenes and fatty alcohols, esters, and aldehydes. However, the oils obtained by extraction with supercritical fluid contained only triglycerides. These results indicate that the extraction using supercritical fluid presents better selectivity. The activity of the oils on the development of the ant symbiotic fungus, Leucoagaricus gongylophorus, showed week activity. The topic insecticide assay showed better activity for the tangerine seed oil.]