Immobilization of β-cyclodextrin in chitosan beads for separation of cholesterol from egg yolk

Shao Hua Chiu, Tze Wen Chung, R. Giridhar, Wen Teng Wu*

*此作品的通信作者

研究成果: Article同行評審

92 引文 斯高帕斯(Scopus)

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
頁(從 - 到)217-223
頁數7
期刊Food Research International
37
發行號3
DOIs
出版狀態Published - 4月 2004

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