Садржај


Contemporary Materials II−1 (2011)

Contemporary Materials II−1 (2011) Page 84 of 87

UDK 635.74:665.52

SUPERCRITICAL FLUID EXTRACTION WITH CARBON DIOXIDE AT DIFFERENT PRESSURES

V. Mićić1,*, D. Novaković2,  Ž.  Lepojević3, M. Jotanović1, B.  Pejović1, P. Dugić1, Z. Petrović1
1 Faculty of Technology Zvornik, University of Eastern Sarajevo,
2 Faculty of Technical Sciences, University of Novi Sad,  Serbia
3 Faculty of Technology, University of Novi Sad,  Serbia

Abstract
In this paper the influence of carbon dioxide pressure on supercritical extraction of Salvia officinalis L. was investigated. Supercritical fluid extraction with carbon dioxide was done for pressures of 80, 100, 150, 200 and 300 bar. It was concluded that with increasing pressure from 80 to 300 the bar extraction yield enhanced. GC/MS and GC/FID methods were used for qualitative and quantitative analyses of obtained extracts and essential oils from extracts.

Keywords: supercritical extraction, carbon dioxide, pressures, sage, essential oil.

Full Text (PDF)

References

[1] H. Sovova, Mathematical model for supercritical fluid extraction of natural products and extraction curve evaluation, J. Supercritical Fluids 33 (2005) 35−52.
[2] F. Stampar, A. Solar, M. Hudina, R. Veberic, M. Colaric, Traditional walnut liqueur-cocktail of phenolics, Food Chem. 95 (2006) 627−631.
[3] Z. Zeković, Ž. Lepojević, S. Milošević, A. Tolić, Thyme (Thymus vulgaris L.) compounds in SFE, Proceedings 6th Conference on Supercritical Fluids and Their Applications, Maiori, Italy, September, 2001, 209
[4] E. Reverchon, F. Senatore, Isolation of rosemary oil: Comparison between hydrodistillation and supercritical CO2 extraction. Flavour and Fragrance Journal 7 (2005) 227−230.
[5] K. Cheng, S. Kuo, M. Tang, Y. Chen, Vapor-liquid equilibria at elevated pressures of binary mixtures of carbon dioxide with methyl salicylate, eugenol and diethyl phthalate, Supercritical Fluids 18 (2000) 87−99.

[6] T. M. Takeuchi, M. L. Corazza, M. A. Meireles, Study of the phase equilibrium formed inside the flash tank used at the separation step of a supercritical fluid extraction unit, J. Supercritical Fluids 43 (2008), 447−459.

[7] W. Guan, S. Li, R. Yan, S. Tang, C. Quan, Comparison of essential oils of clove buds extracted with supercritical carbon dioxide and other three traditional methods, Food Chem. 101 (2007), 1558−1564.