Solvent extraction study of antioxidants from Balm (Melissa officinalis L.) leaves /
In the paper, the extraction of antioxidants from Balm (Melissa officinalis L.) leaves with ethanol is presented. Effects of particle size, amount of solvent and temperature on the extraction rates and concentrations of antioxidants in the extracts were studied and kinetics was determined. Individua...
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| Main Authors: | , , , |
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| Format: | Book Chapter |
| Jezik: | English |
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| Sorodne knjige/članki: | Vsebovano v:
Food chemistry |
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| LEADER | 01933naa a2200229 ib4500 | ||
|---|---|---|---|
| 001 | 7797526 | ||
| 003 | SI-MaCOB | ||
| 005 | 20030320000000.0 | ||
| 008 | 030320s2003 xxk|||||s|||||||| ||eng c | ||
| 040 | |a KTFMB |b slv |c SI-MaIIZ |d KTFMB |e ppiak | ||
| 080 | |a 66.02 | ||
| 245 | 1 | 0 | |a Solvent extraction study of antioxidants from Balm (Melissa officinalis L.) leaves / |c Špela Stangler Herodež ... [et al.]. |
| 300 | |a str. 275-282. | ||
| 500 | |a Soavtorji: Majda Hadolin, Mojca Škerget, Željko Knez. | ||
| 520 | |a In the paper, the extraction of antioxidants from Balm (Melissa officinalis L.) leaves with ethanol is presented. Effects of particle size, amount of solvent and temperature on the extraction rates and concentrations of antioxidants in the extracts were studied and kinetics was determined. Individual antioxidants (carnosic, ursolic and oleanolic acids) were identified by high performance liquid chromatography. Results showed that the intraparticle diffusion was the rate-governing step of the extraction process. The extractions all proceeded in three stages: an initial washing stage, a fast stage and a slower stage. Experimental extraction curves were analysed with a mathematical model derived from Fickćs second law, and diffusion coefficients of the antioxidants within the particles under different operating conditions in ethanol were determined. | ||
| 653 | 0 | |a kemijska procesna tehnika |a antioksidanti |a ekstrakcija z etanolom |a fazno ravnotežje |a izolacija aktivnih komponent |a baldrijan | |
| 653 | 0 | |a chemical processing |a antioxidants |a extraction with ethanol |a isolation of active compounds |a phase equilibrium |a Melissa officinalis L. | |
| 700 | 1 | 2 | |a Stangler Herodež, Špela. |4 aut |
| 700 | 1 | 2 | |a Hadolin Kolar, Majda. |4 aut |
| 700 | 1 | 2 | |a Škerget, Mojca. |4 aut |
| 700 | 1 | 2 | |a Knez, Željko. |4 aut |
| 773 | 0 | |t Food chemistry |b [Print ed.] |d London : Applied Science Publishers |x 0308-8146 |g Vol. 80, iss. 2 (2003), str. 275-282 | |