[en] The present study deals with the determination of optimal values of operating parameters such as the temperature of heating, the mass of the plant material and the volume of water leading to the best yield of electromagnetic induction (EMI) heating extraction of Algerian Thymus fontanesii essential oil. After an appropriate choice of the three critical variables, eight experiments leaded to a mathematical model as a first-degree polynomial presenting the response function (yield) in the relation to the operating parameters. From the retained model, we were able to calculate the average response, the different effects and their interactions. The maximum of essential oil recovery percentage relative to the initial mass of plant material was 1.69 %, and was obtained at (140 °C, 250 g and 4.5 L). The chemical composition of the Algerian T. fontanesii essential oil under the obtained optimal conditions (140 °C, 250 g and 4.5 L), determined by GC/MS and GC/FID, reveled of the presence of major components such as: carvacrol (70.6 ± 0.1 %), followed by p-cymene (8.2 ± 0.2 %).
El Asbahani, A., Miladi, K., Badri, W., Sala, M., Aït Addi, E.H., Casabianca, H., El Mousadik, A., Elaissari, A., (2015) Int. J. Pharm., 483, pp. 220-243
Ammar, A.H., Zagrouba, F., (2010), 25, pp. 503-507
Adams, R.P., (2001) Quadrupole Mass Spectra of Compounds Listed in Order of Their Retention Time on DB-5, , Identification of essential oils components by gas chromatography:quadrupole mass spectroscopy
Allured Publishing Corporation: USA, 3rd ed
Joulain, D., König, W.A.J., The Atlas of Spectral Data of Sesquiterpene Hydrocarbons. E.B. – Verlag Hambourg (1999) J. Nat. Prod., 62 (8), pp. 1212-1213
Babushok, V.I., Linstrom, P.J., Zenkevich, I.G., (2011) J. Phys. Chem. Ref. Data, 40, p. 43101
Ravikumar, K., Krishnan, S., Ramalingam, S., Balu, K., (2007) Dyes Pigm., 72, pp. 66-74
Bekhechi, C., Bekkara, F.A., Abdelouahid, D.E., Tomi, F., Casanova, J., (2007) J. Essent. Oil Res., 19, pp. 594-596
Sidali, L., Brada, M., Fauconnier, M.L., Lognay, G., Heuskin, S., (2017) Phytochem Biosub J, 11, p. 11
Mouhi, L., Moghrani, H., Nasrallah, N., Amrane, A., Maachi, R., (2017) J. Food Biochem., 41, pp. 1-9
Dob, T., Dahmane, D., Benabdelkader, T., Chelghoum, C., (2006) Pharm. Biol., 44, pp. 607-612
Bailer, J., Aichinger, T., Hackl, G., de Hueber, K., Dachler, M., (2001) Ind. Crops Prod., 14, pp. 229-239
Desai, M.A., Parikh, J., De, A.K., Modelling and optimization studies on extraction of lemongrass oil from Cymbopogon flexuosus (Steud.) Wats (2014) Chem. Eng. Res. Des., 92, pp. 793-803
