Study on Technique of Supercritical CO2 Extraction of Linoleic Acid in Corn Skin

Abstract

Abstract: Corn skin linoleic acid(CSLA) was extracted through supercritical CO2 fluid extraction technology. The major influence factors such as extraction pressure, extraction temperature, extraction time and CO2 flow were studied and analysised, and the conditions were determined. CSLA were qualitative and quantitative analysised through gas chromatography. Optimized the technological condition through orthogonal test, when the extraction pressure 25 MPa, temperature 35 ℃, time 90 min, CO2 flow 25 L/h, the result is best, the CSLA percentage extraction is 3.41 g per 100 g corn skin.

Key words: supercritical fluid extraction, corn skin, linoleic acid, gas chromatography

LIU Ting-Ting, DING Wei, WANG Da-Wei. Study on Technique of Supercritical CO2 Extraction of Linoleic Acid in Corn Skin[J]. FOOD SCIENCE, 2007, 28(10): 222-225.

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Study on Technique of Supercritical CO2 Extraction of Linoleic Acid in Corn Skin

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