MASS TRANSFER OF THE BIOACTIVE SUBSTANCES IN THE SOLID-LIQUID EXTRACTION
Chemical Product Design and Engineering (CPD&E)
Chemical Product Design & Engineering - Poster (CPD&E - P)
Keywords: medical herb, bioactive substance, extraction, inner diffusion,γ-linoleic acid
MASS TRANSFER OF THE BIOACTIVE SUBSTANCES IN THE SOLID-LIQUID
EXTRACTION
J.B.Savkovic-Stevanovic1, R.D.Berić2, J.J.Đurovic1
1Department of Chemical Engineering, Faculty of Technology and Metallurgy,
The University of Belgrade, Karnegijeva 4,11000 Belgrade, Serbia and Montenegro
e-mail: savkovic@tmf.bg.ac.yu
2 Zorka-Research Center,15000 Sabac, Serbia and Montenegro, e-mail:zorkaci@ptt.yu
Keywords: medical herb, bioactive substance, extraction, mass transfer,free and inner
diffusion
The bioactive substance mass transfer from the medical herbs in the solid-liquid system was investigated. The determination of the mass transfer coefficients were performed by experiments and computer simulation. Extraction was carried out with Oenothere biennis L. and Betula pendula Roth L..
The experiments were carried out in laboratory conditions at the atmospheric pressure in an ordinary SOHXLET glass column. The oil obtained from Oenothere biennis L. by extraction was drying and goes to spectrometric analysis. The refined oil is stabilized with α- tocopherol and standardized on γ-linoleic acid. The hyperosid was obtained from Betula pendula Roth L..
The overall mass transfer coefficients were determined involving convention, inner and free diffusion. The specific mass transfer rate was determined and analysis of the product quality was performed.
Process operation was simulated with derived mathematical model for the Oenothere biennis L. and Betula pendula Roth L.. Simulation was carried out for various operation regions and conditions. The product and stripping process period was examined.
γ-linoleic acid like others essential fatty acids forms liquid glycerides. Unsaturated fatty acids according to their biological properties are similar to the vitamins and beside
γ-linoleic acid and linoleic acid, they comprise arachidonic and clupanodonic acids. The obtained simulated results has been in a good agreement with experimental ones.
The obtained results in this paper can be applied in the others domain.
Presented Wednesday 19, 13:30 to 15:00, in session Chemical Product Design & Engineering - Poster (CPD&E - P).
