TY  - JOUR
T1  - Oil Extraction from Sheanut Kernel (<I>Vitellaria paradoxa </I>Gaertn) and Canarium Pulp (<I>Canarium schweinfurthii </I>Engl.) Using Supercritical Co<SUB>2</SUB> and Hexane: A Comparative Study
AU - , Gilles Bernard Nkouam AU - , Cesar Kapseu AU - , Danielle Barth AU - , Michel Dirand AU - , Jean Bosco Tchatchueng 
JO  - Research Journal of Applied Sciences
VL  - 2
IS  - 5
SP  - 646
EP  - 652
PY  - 2007
DA  - 2001/08/19
SN  - 1815-932x
DO  - rjasci.2007.646.652
UR  - https://makhillpublications.co/view-article.php?doi=rjasci.2007.646.652
KW  - Vitellaria paradoxa gaertn
KW  -Canarium schweinfurthii Engl
KW  -supercritical carbon dioxide
KW  -extraction
KW  -lipids
AB  - Oil extraction using CO<SUB>2</SUB> from sheanut kernel (<I>Vitellaria paradoxa </I>Gaertn.) and <I>Canarium</I> pulp (<I>Canarium Schweinfurthii </I>Engl.)has been studied in comparison with hexane extraction. Samples that were stored at 18 C and -33 C, were analyzed after 1 month, 1 year and 2 years. Results showed that the extraction yields varied (dry basis) from 17.43-39.57% for shea butter and from 16.10-40.45% for <I>Canarium</I> oil. Lipids extracted with CO<SUB>2</SUB> gave highest acid values, but lowest iodine values what irrespective of the storage temperature. Shea butter analysis by gaseous phase chromatography indicated a composition in stearic and oleic acids that did not vary significantly. Butter extracted with supercritical CO<SUB>2</SUB> from sheanut kernel stored at 18 C were rich in polyunsaturated fatty acid. These results suggest that greater investigations on supercritical CO<SUB>2</SUB> extraction of these fatty materials should be encouraged because of its selectivity.
ER  -