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https://open.uns.ac.rs/handle/123456789/10719
Title: | SFE of PMT mixture by supercritical CO2 | Authors: | Zeković, Zoran Lepojević, Žika Mujić, Ibrahim |
Issue Date: | 2006 | Publisher: | Praha: Process Engineering Publisher | Journal: | CHISA 2006 - 17th International Congress of Chemical and Process Engineering | Conference: | 17th International Congress of Chemical and Process Engineering | Abstract: | The aim of this paper is to investigate supercritical fluid extraction (SFE) by carbon dioxide (CO2) of one complex matrix, such is a mixture of propolis, mentha and thyme (PMT). In this way could be obtained an extract (PMT-C) contains all non-polar (lipophilic, essential oil compounds) pharmacologically active compounds of investigated matrix. After SFE-CO 2, the same material (without non-polar compounds) was extracted by "classical extraction" using 70% ethanol (extraction of polar substances from matrix) and dry extract (PMT-E) was obtained. For qualitative and quantitative analysis of PMT-C and PMT-E the GC-MS method was used. The antioxidant activity of obtained extracts was determined by ESR (Electron Spin Resonance) spectroscopy - Hydroxyl radical assays (Fenton reaction system). | URI: | https://open.uns.ac.rs/handle/123456789/10719 | ISBN: | 8086059456 |
Appears in Collections: | TF Publikacije/Publications |
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