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Titolo:
Supercritical fluid extraction of kava lactones from Kava root and their separation via supercritical fluid chromatography
Autore:
Ashraf-Khorassani, M; Taylor, LT; Martin, M;
Indirizzi:
Virginia Tech, Dept Chem, Blacksburg, VA 24061 USA Virginia Tech Blacksburg VA USA 24061 Dept Chem, Blacksburg, VA 24061 USA Armadillo Pharmaceut, Hakalau, HI 96710 USA Armadillo Pharmaceut Hakalau HI USA 96710 armaceut, Hakalau, HI 96710 USA
Titolo Testata:
CHROMATOGRAPHIA
fascicolo: 5-6, volume: 50, anno: 1999,
pagine: 287 - 292
SICI:
0009-5893(199909)50:5-6<287:SFEOKL>2.0.ZU;2-3
Fonte:
ISI
Lingua:
ENG
Soggetto:
PERFORMANCE LIQUID-CHROMATOGRAPHY; PIPER-METHYSTICUM; KAVAPYRONES;
Keywords:
supercritical fluid extraction; supercritical fluid chromatography; kava root lactones;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Physical, Chemical & Earth Sciences
Citazioni:
13
Recensione:
Indirizzi per estratti:
Indirizzo: Ashraf-Khorassani, M Virginia Tech, Dept Chem, Blacksburg, VA 24061 USA Virginia Tech Blacksburg VA USA 24061 , VA 24061 USA
Citazione:
M. Ashraf-Khorassani et al., "Supercritical fluid extraction of kava lactones from Kava root and their separation via supercritical fluid chromatography", CHROMATOGR, 50(5-6), 1999, pp. 287-292

Abstract

Seven Kava lactones were extracted from Kava root using both pure and 15 %ethanol modified CO2. Most of the Kava lactones were extracted employing 100 % CO2 with an efficiency greater than 90 % relative to conventional solvent extraction using organic solvents. Extraction efficiency did not increase significantly when using 15 % ethanol-modified CO2 as an extraction fluid. Separation of extracted Kava lactones was obtained using various packed columns and methanol-modified CO2. An optimized separation was achieved using either an amino or protein C-4 column at 125 atm and 80 degrees C. Semi-preparative separation of Kava lactones was also obtained using two columnsconnected in series.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 03/04/20 alle ore 03:29:21