Majda Hadolin Kolar (Avtor), Andreja Rižner Hraš (Avtor), Davorin Bauman (Avtor), Željko Knez (Avtor)

Povzetek

In present work, the purification of crude rosemary extract with supercritical fluids is presented. Carbon dioxide was used as a solvent. The crude extract was prepared from rosemary with conventional extraction process. The supercritical CO2 extraction of crude extracts was performed at pressures 10 and 20 MPa and temperatures 35 and 60 °C. The best results were obtained at pressure 10 MPa and temperature 35 °C. The content of carnosic acid in the samples before and after high pressure extraction was identified by high performance liquid chromatography. The content of carnosic acid in purified extract is higher compared to crude extract. The antioxidative efficiency of extracts was determined by measuring peroxide value. Activity ofpurified rosemary extracts is higher compared to crude extracts.

Ključne besede

kemijska procesna tehnika;visokotlačna tehnologija;ekstrakcija;CO2;naravni antioksidanti;ekstrakt rožmarina;živilski aditivi;chemical processing;high pressure technology;extraction;natural antioxidants;rosemary extract;food additives;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.01 - Izvirni znanstveni članek
Organizacija: UM FKKT - Fakulteta za kemijo in kemijsko tehnologijo
UDK: 66.061-987
COBISS: 9235478 Povezava se bo odprla v novem oknu
ISSN: 1466-8564
Št. ogledov: 1785
Št. prenosov: 94
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Sekundarni jezik: Angleški jezik
Sekundarne ključne besede: kemijska procesna tehnika;visokotlačna tehnologija;ekstrakcija;CO2;naravni antioksidanti;ekstrakt rožmarina;živilski aditivi;
URN: URN:SI:UM:
Strani: str. 245-248
Letnik: ǂVol. ǂ5
Zvezek: ǂiss. ǂ2
Čas izdaje: June 2004
ID: 8718733