earticle

영어

Supercritical fluid extraction is an alternative to conventional separation process technique which takes advantage of the enhanced solvent power of supercritical fluids. Supercritical carbon dioxide (SCO2) extraction was applied for bio-industry (foods, medicines, cosmetics,
ect) which enable to high value-added business creation. SCO2 was used as a solvent for extracting oils from wheat flour at temperature 40℃ and pressure 10-20 MPa. Oil extraction yield increased with increasing extraction pressure. The extract was analyzed by GC and
GC/MS technique. The odors in the oil extracted at different conditions was composed of Methyl alcohol, Methane, Trimethoxy, Chloroform and Cyclotetrasiloxane. The main fatty acids of wheat flour oil extracted SCO2 were Linoleladic Acid Methyl Ester (C18:2n6t), γ-Linolenic Acid Methyl Ester (C18:3n6), Palmitic Acid Methyl Ester (C16:0) and Elaidic Acid Methyl Ester (C18:1n9t). Further study is going to investigate the oxidation stability of comparing the oils extracted by
SCO2 and soxhlet extraction with liquid hexane by measuring acid value.