@article{MAKHILLRJAS2007258763,
    title = {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},
    journal = {Research Journal of Applied Sciences},
    volume = {2},
    number = {5},
    pages = {646-652},
    year = {2007},
    issn = {1815-932x},
    doi = {rjasci.2007.646.652},
    url = {https://makhillpublications.co/view-article.php?issn=1815-932x&doi=rjasci.2007.646.652},
    author = {Gilles Bernard Nkouam,Cesar Kapseu,Danielle Barth,Michel Dirand and},
    keywords = {Vitellaria paradoxa gaertn,Canarium schweinfurthii Engl,supercritical carbon dioxide,extraction,lipids},
    abstract = {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.}
    }