Access Restriction

Author Chen, Yingdi ♦ Xu, Peng ♦ Cheng, Jian
Source SpringerLink
Content type Text
Publisher SP Higher Education Press
File Format PDF
Copyright Year ©2010
Language English
Subject Domain (in DDC) Natural sciences & mathematics ♦ Chemistry & allied sciences
Subject Keyword supercritical carbon dioxide ♦ extraction ♦ CLA-ethyl ester ♦ temperature gradient ♦ Nanotechnology ♦ Industrial Chemistry/Chemical Engineering
Abstract Supercritical carbon dioxide (SC-CO$_{2}$) extraction of Conjugated linoleic acid (CLA) ethyl ester was investigated at pressures in the range of 9 to 10.5 MPa and temperature gradients ranging from 0°C to 21°C. The content of CLA-ethyl ester in the fraction was analyzed with gas chromatography (GC). The experimental results indicated that the rate of extraction would rise with the increase of pressure when temperature gradient was given. Moreover, the extraction pressure had insignificant influence on the selectivity of CLA-ethyl ester in SC-CO$_{2}$. When pressure was fixed, setting certain temperature gradient can improve the selectivity of CLA-ethyl ester in SC-CO$_{2}$, and CLA-ethyl ester can be concentrated more effectively than without a temperature gradient. The acid value and peroxide value of the fractions were reduced obviously, compared to the raw material. The optimal condition is pressure at 10 MPa and temperature gradient at 11°C.
ISSN 20950179
Age Range 18 to 22 years ♦ above 22 year
Educational Use Research
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2010-06-24
Publisher Institution Chinese Universities
Publisher Place Heidelberg
e-ISSN 16737474
Journal Frontiers of Chemical Engineering in China
Volume Number 5
Issue Number 1
Page Count 5
Starting Page 102
Ending Page 106

Open content in new tab

   Open content in new tab
Source: SpringerLink