| 研究生: |
周泰成 Chou, Tai-Cheng |
|---|---|
| 論文名稱: |
以環狀糊精為基材製備親和性吸附劑以及對澱粉水解酵素吸附脫附之探討 Investigation of beta-cyclodextrin based affinity adsorbents for the adsorption and desorption of alpha-amylase |
| 指導教授: |
許梅娟
Syu, Mei-Jyuan |
| 學位類別: |
碩士 Master |
| 系所名稱: |
工學院 - 化學工程學系 Department of Chemical Engineering |
| 論文出版年: | 2002 |
| 畢業學年度: | 90 |
| 語文別: | 中文 |
| 論文頁數: | 65 |
| 中文關鍵詞: | 固定化金屬離子親和性層析法 、Beta 型環狀糊精 、環氧氯丙烷 、DADPA 、Alpha 型澱粉水解酵素 、EDTA |
| 外文關鍵詞: | EDTA, Alpha-amylase, DADPA, EPI, immobilized metal affinity chromatography, Beta-CD |
| 相關次數: | 點閱:91 下載:1 |
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純化在生化產業中是非常重要的步驟,其中親和性層析法 (affinity chromatography) 頗受重視是因其專一性的純化特性,可以有效且快速的將產物分離,藉此達到降低成本的目的,並且提高產業的競爭力。
本論文主要是以固定化金屬離子親和性層析法 (immobilized metal affinity chromatography) 對alpha 型澱粉水解酵素(alpha-amylase) 進行吸脫附的研究與探討。研究是以 beta 型環狀糊精 (beta-cyclodextrin,beta-CD) 與環氧氯丙烷 (epichlorohydrin, EPI) 形成的交聯物為擔體,再分別鍵結IDA或cibacron blue F3G-A或DADPA為配位基並螯合銅離子製備固定化金屬離子親和性吸附劑;其中以 beta-CD CL-DADPA-Cu2+ 的吸附效果最高可達99%,而以EDTA脫附時,其脫附效果也高達98%。
綜合上述之結果,本研究是以擔體鍵結DADPA並螯合銅離子所製備而成的吸附劑,具有最好的吸附與脫附效果。
Purification is essential in the biochemical industry. The approach of affinity chromatography is widely applied because of its specificity as well as its separate efficiency.
The aim of this dissertation is to discuss the absorption and desorption the immobilized metal affinity adsorbent for alpha-amylase. In this work, the matrix beta-CD was cross-linked with EPI, then further immobilized with the ligand such as IDA, cibacron blue F3G-A, and DADPA respectively. In addition Cu2+ was chelated on the matrix to form immobilized metal affinity adsorbent. Among these adsorbents being studied, beta-CD CL-DADPA-Cu2+ shows best adsorption result of 99%. Meanwhile, of EDTA shows best result of desorption which can reach up to 98%.
In conclusion, the affinity adsorbent beta-CD CL-DADPA-Cu2+ can reach best performance on adsorption and desorption.
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