Abstract
| Original language | English |
|---|---|
| Journal | International Journal of Food Engineering |
| Volume | 5 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - Nov 2009 |
| Externally published | Yes |
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Selective adsorption of vitamin E from palm fatty acid distillate on silica-packed fixed-bed columns. / Chu, Boon-Seang; Baharin, Badlishah Sham; Che Man, Yaakob B.; Quek, Siew Young.
In: International Journal of Food Engineering, Vol. 5, No. 5, 11.2009.Research output: Contribution to journal › Article
TY - JOUR
T1 - Selective adsorption of vitamin E from palm fatty acid distillate on silica-packed fixed-bed columns
AU - Chu, Boon-Seang
AU - Baharin, Badlishah Sham
AU - Che Man, Yaakob B.
AU - Quek, Siew Young
PY - 2009/11
Y1 - 2009/11
N2 - Understanding the behavior of vitamin E adsorption during chromatographic separation was useful for a better control of the process. In this study, a pre-concentrated vitamin E fraction from palm fatty acid distillate (PFAD) was subjected to a normal phase silica-packed fixed-bed column for further purification. The effect of various operational parameters i.e. column bed height, vitamin E inlet concentration, column temperature and flow rate on column performance were detailed. It appeared that the breakthrough curves of all systems showed a typical S-shaped profile. The service time of the column increased when increasing the column bed height, or reducing the inlet concentration, column temperature and flow rate. It was found that column efficiency in terms of adsorbent usage rate could be improved by decreasing the inlet concentration and flow rate. Decreasing the column temperature resulted in higher column capacity, suggesting that the adsorption of vitamin E on silica was an exothermic process. The Bed Depth Service Time (BDST) model described the adsorption process well, with coefficient of determination ranging from 0.92 to 0.99 and low residual sum of square (< 0.28) and standard error (< 0.35). The model could explain the characteristic operational parameters well except for the effect of flow rate in this study.
AB - Understanding the behavior of vitamin E adsorption during chromatographic separation was useful for a better control of the process. In this study, a pre-concentrated vitamin E fraction from palm fatty acid distillate (PFAD) was subjected to a normal phase silica-packed fixed-bed column for further purification. The effect of various operational parameters i.e. column bed height, vitamin E inlet concentration, column temperature and flow rate on column performance were detailed. It appeared that the breakthrough curves of all systems showed a typical S-shaped profile. The service time of the column increased when increasing the column bed height, or reducing the inlet concentration, column temperature and flow rate. It was found that column efficiency in terms of adsorbent usage rate could be improved by decreasing the inlet concentration and flow rate. Decreasing the column temperature resulted in higher column capacity, suggesting that the adsorption of vitamin E on silica was an exothermic process. The Bed Depth Service Time (BDST) model described the adsorption process well, with coefficient of determination ranging from 0.92 to 0.99 and low residual sum of square (< 0.28) and standard error (< 0.35). The model could explain the characteristic operational parameters well except for the effect of flow rate in this study.
U2 - 10.2202/1556-3758.1656
DO - 10.2202/1556-3758.1656
M3 - Article
VL - 5
JO - International Journal of Food Engineering
JF - International Journal of Food Engineering
SN - 1556-3758
IS - 5
ER -