Concentration of tocopherols from soybean sludge by supercritical carbon dioxide

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Title
Concentration of tocopherols from soybean sludge by supercritical carbon dioxide
Author(s)
Huen Lee; Bong Hyun Chung; Young Hoon Park
Bibliographic Citation
Journal of American Oil Chemists Society, vol. 68, no. 8, pp. 571-573
Publication Year
1991
Abstract
A supercritical fluid extraction method has been applied to test the feasibility of tocopherol concentration from soybean sludge with carbon dioxide at temperatures and pressures ranging from 35 to 70°C and 200 to 400 bar, respectively. The supercritical solubility of the esterified soybean sludge was over 4-6 times greater than that of the original soybean sludge. By a simple batch-type one-stage method the tocopherols in the esterified soybean sludge could be concentrated up to 40 wt%. The overall results of the present study show that soybean sludge initially containing about 13-14 wt% tocopherols may require a countercurrent multistage column to be highly and effectively concentrated.
Keyword
Extractionsolubilitysoybean oiltocopherolssupercritical carbon dioxide
ISSN
0003-021X
Publisher
Wiley
DOI
http://dx.doi.org/10.1007/BF02660152
Type
Article
Appears in Collections:
1. Journal Articles > Journal Articles
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