Extraction of Stinging Nettle (Urtica dioica L.) with Supercritical Carbondioxide

V. Rafajlovska, Z. Djarmati, V. Najdenova, Lj. Cvetkov

Öz


The extraction of the stinging nettle leaves was performed with 20 kg/h flow rate of supercritical CO2. The influence of the working parameters: pressure (140 bar, 210 bar and 350 bar), temperature (from 40 oC to 60 oC) on the quantity of extract and contents of chlorophyll a+b and b-carotene in it is determined. The biggest quantity of extract (4.48% in relation to the dry matter) with 0.88% contents of chlorophyll a+b and

0.50% b-carotene is obtained at 350 bar, 60 oC, 6h extraction time.


Tam Metin:

PDF

Referanslar


H. Wagner, F. Willer and B. Kreher, Planta Med., 55 (1989) 452

N. Chaurasia, M. Wichtl, Planta Med., 53 (1987) 432

R. Adamski, J. Bieganska, Herba Polon., XXX (1984) 17

P. Dalev, A. Ljubomirova, I. Ivanov, Biotechn. Lett., 18 (1996) 107

N. Chaurasia, M. Wichtl, Dtsch. Apoth. Ztg., 3 (1986) 81

N. Chaurasia, M. Wichtl, Dtsch. Apoth. Ztg., 3 (1986) 81

D. Lerner, N. Raikler, J. Biol. Chem., 267 (16) (1992) 11085

T. Hirano, M. Homma, A. Oka, Planta Med., 60 (1994) 30

E. Reverchon E., G. Porta G., F. Senatore F., J. Agric. Food Chem., 43 (1995) 1654 [10] A. Eckert, L. Hnutson, G. Debenedetti, Nature, 383 (1997) 313

C. Acosta, W. Cain, H. Fisher, C. Knopf, J. Agric. Food Chem., 43 (1995) 63 [12] J. Trajkovic, M. Siler, J. Baras, Analiza Zivotnih Namirnica, Beograd, 1983

M. Holden, Chemistry, Biochemistry of Plant Pigments, T.W.Goodwin 2nd Edt., 1976


Refback'ler

  • Şu halde refbacks yoktur.


Telif Hakkı (c) 2016 V. Rafajlovska, Z. Djarmati, V. Najdenova, Lj. Cvetkov

Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.