Extraction of Volatile Compounds from Aqueous Solution using Micro Bubble, Gaseous, Supercritical and Liquid Carbon Dioxide

Autor:	Hiroya Ishikawa, Mitsuya Shimoda, Yutaka Osajima, Tamotsu Kawano
Rok vydání:	1994
Předmět:	Supercritical carbon dioxide Aqueous solution Chromatography Extraction (chemistry) Extraction ratio Supercritical fluid extraction Analytical chemistry chemistry.chemical_element Supercritical fluid chemistry.chemical_compound chemistry Carbon dioxide Carbon Food Science
Zdroj:	Journal of Food Science. 59:231-232
ISSN:	1750-3841 0022-1147
DOI:	10.1111/j.1365-2621.1994.tb06937.x
Popis:	When separating volatile compounds from aqueous solution using supercritical carbon dioxide (SC CO 2 ), methods to bring SC CO 2 into contact with volatile compounds in the solution are very important. An extraction using micro bubble, gaseous, supercritical, and liquid CO 2 generated by a filter nozzle was carried out. Under optimal conditions (20 MPa, 35 o C), >95% of volatile compounds consisting of 6 to 12 carbon atoms could be removed by extraction for 40 min at CO 2 low rate, 4.0 g/min. Extraction at 35 o C could achieve either a selective or nonselective separation by adjusting the extraction pressure, since the effect of pressure on extraction ratio was most significant at 35 o C
Databáze:	OpenAIRE
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