Optimizing preparation of the fenell (foeniculum vulgare L.) extracts by using ultrassound - methodology in accordance with the principles of green chemistry

Fennel (foeniculun vulgare L.) is a vegetal species that presents bioactive monoterpenes. These compounds are lipophilic substances almost insoluble in water. The best conditions to extract these substances, employs organic solvents or heating process. With the aim developing new extractive methods which green chemical principles cam be applied, this work was performed. effect of use ultrasound during preparation fennel extracts by water infusion and ethyl acetate maceration verified. extracts, portion aqueous were analyzed gas chromatography coupled mass spectrometry. extraction, without leads only extraction two metabolites (fenchone anethole), performed using 5 10 minutes, promoted seven (a-pinene, L-fenchone, estragole, anethole, β-caryophyllene, a-cadenol, geranylgeraniol), while times upper than minutes leas with 4 estragole limonene). submitted not led same five (D-limonene, anethole).