| 학회 | 한국화학공학회 |
| 학술대회 | 2002년 봄 (04/26 ~ 04/27, 강원대학교) |
| 권호 | 8권 1호, p.661 |
| 발표분야 | 분리기술 |
| 제목 | 가교된 키토산 membrane을 이용한 α-amino산 광학 이성질체의 입체선택적 분리 |
| 초록 | Optical resolution of a-amino acid (tryptophan and tyrosine) optical isomers was achieved by a pressure driven membrane separation process, using self-supporting crosslinked chitosan membranes with different swelling indices that ranged from 100 to 70 %. The chitosan membranes prepared by casting and drying the chitosan solution contanining 5wt% acetic acid on an acryl plate followed by crosslinking with glutaraldehyde were characterized using such analytical methods as FTIR and swelling index measurements. When the chitosan membranes with 70 % of swelling index were used , almost complete optical resolution was obtained; 97.92 % of enantiomeric excess (ee %) and 2.26 g/m2·h of flux. The operating pressure and the concentration of feed solutions were respectively 1.0 kgf/cm2 and 0.49 mmol/L. |
| 저자 | 김지혜, 김장훈, 제갈종건, 이규호 |
| 소속 | 한국화학(연) |
| 키워드 | a-amino acid; chitosan membranes; Optical resolution |
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| 원문파일 | 초록 보기 |
