Adsorption and Desorption of Cholesterol in Continuous Supercritical Fluid Processing of Anhydrous Milk Fat |
| |
| Authors: | S. LIM S.S.H. RIZVI |
| |
| Affiliation: | Author Rizvi is with the Dept. of Food Science, Cornell Univ., Ithaca, NY 14853. Author Lim's present address: Dept. of Food Science &Technology, Cheju National Univ., #1 Ara-dong, Cheju, Cheju-do 690–756, Korea. Address inquiries to Dr. Sangbin Lim. |
| |
| Abstract: | ![]()
The adsorption breakthrough volume of adsorbent for cholesterol reduction of anhydrous milk fat (AMF) was determined by passing supercritical carbon dioxide (SC-CO2) phase through an adsorption column with magnesium silicate at 40°C/241 bar. The breakthrough quantity for 76% cholesterol reduction was 2.0g fat/g adsorbent. With in-line adsorption on magnesium silicate, the cholesterol reduction in the extracts was 80 to 86%. Magnesium silicates saturated with cholesterol were regenerated with 10% ethanol in CO2 at 40°C and 64°C/241 bar. The adsorption capacity of the magnesium silicate regenerated with 10% ethanol in SC-CO2 at 40°C/241 bar was close to its original value. Its behavior was described by the Langmuir isotherm. |
| |
| Keywords: | supercritical fluid adsorption desorption milk fat cholesterol |
|
|
