TY - JOUR
T1 - Separation of natural tocopherols from soybean oil byproduct with supercritical carbon dioxide
AU - Fang, Tao
AU - Goto, Motonobu
AU - Wang, Xianbao
AU - Ding, Xiaolin
AU - Geng, Jianguo
AU - Sasaki, Mitsuru
AU - Hirose, Tsutomu
PY - 2007/2
Y1 - 2007/2
N2 - Oil deodorizer distillate (DOD), a byproduct from the soybean oil refining process, is rich in valuable compounds, such as natural tocopherols (vitamin E) and sterols. With the aim of concentrating tocopherols from methyl esterified DOD with supercritical CO2, a semi-continuous countercurrent process was developed using a fractionation column with a height of 2.4 m, an inner diameter of 20 mm, and a total volume of 750 mL. Operation parameters, pressure, the ratio of solvent to feed, and temperature of the column were investigated. The experimental results indicated that supercritical CO2 effectively extracts fatty acid methyl esters at 16 MPa with a column temperature gradient of 313-348 K. By increasing pressure, natural tocopherols (>50%) can be obtained with high recovery (>80%). It is concluded that supercritical CO2 fractionation is technically feasible for concentrating natural tocopherols from methyl esterified DOD.
AB - Oil deodorizer distillate (DOD), a byproduct from the soybean oil refining process, is rich in valuable compounds, such as natural tocopherols (vitamin E) and sterols. With the aim of concentrating tocopherols from methyl esterified DOD with supercritical CO2, a semi-continuous countercurrent process was developed using a fractionation column with a height of 2.4 m, an inner diameter of 20 mm, and a total volume of 750 mL. Operation parameters, pressure, the ratio of solvent to feed, and temperature of the column were investigated. The experimental results indicated that supercritical CO2 effectively extracts fatty acid methyl esters at 16 MPa with a column temperature gradient of 313-348 K. By increasing pressure, natural tocopherols (>50%) can be obtained with high recovery (>80%). It is concluded that supercritical CO2 fractionation is technically feasible for concentrating natural tocopherols from methyl esterified DOD.
KW - Fractionation
KW - Oil deodorizer distillate
KW - Supercritical carbon dioxide
KW - Tocopherols
UR - https://www.scopus.com/pages/publications/33845411912
U2 - 10.1016/j.supflu.2006.04.008
DO - 10.1016/j.supflu.2006.04.008
M3 - 文章
AN - SCOPUS:33845411912
SN - 0896-8446
VL - 40
SP - 50
EP - 58
JO - Journal of Supercritical Fluids
JF - Journal of Supercritical Fluids
IS - 1
ER -