摘要
Immobilization of β-cyclodextrin to chitosan beads (Ch-BCD) by cross-linking with 1,6-hexamethylene diisocyanate (HMDI) reagent has been successfully developed and demonstrated that it possessed excellent capacity for cholesterol adsorption from egg yolk. Under optimum conditions, a maximum β-cyclodextrin (BCD) loading of 0.43 g/g-chitosan was obtained. The experimental data on cholesterol adsorption fitted well in the Langmuir isotherm equation with a maximum adsorption capacity (Nm) of cholesterol 0.33 g cholesterol/g-adsorbent. 92% of the cholesterol was removed from a 30-fold diluted yolk solution at 25°C using 1% (w/v) Ch-BCD in 2 h. On the other hand, 96% of adsorbed cholesterol could be dissociated from the Ch-BCD using 95% ethanol at 50°C. In addition, the Ch-BCD retained 84% adsorption capacity after 12 reuses.
原文 | English |
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頁(從 - 到) | 217-223 |
頁數 | 7 |
期刊 | Food Research International |
卷 | 37 |
發行號 | 3 |
DOIs | |
出版狀態 | Published - 4月 2004 |