查詢結果分析
相關文獻
- Enantioselective Esterification of (S)-Naproxen from Racemic Naproxen by Alkylated Lipase in Organic Solvents
- Lipase-Catalyzed Transesterification of Propylene Glycol with Triglyceride in Organic Solvents
- 臺北地區石油系乾洗業者有機溶劑暴露之研究
- 溫濕度對六種工業用有機溶劑分析方法回收率之影響
- 廢有機溶劑回收之清潔生產--純化方法
- Tenax-TA熱脫附分析方法驗證與現場應用探討
- 有機溶劑作業環境控制及其回收效益之探討
- 有機溶劑之危害及其預防
- 有機溶劑危害與作業安全
- 有機溶劑的神經毒性
頁籤選單縮合
題 名 | Enantioselective Esterification of (S)-Naproxen from Racemic Naproxen by Alkylated Lipase in Organic Solvents=有機溶劑中以烷基化脂肪分解酶自外消旋Naproxen進行對掌異構酯化(S)-Naproxen |
---|---|
作 者 | 黃偉哲; 蔡少偉; 張春生; | 書刊名 | Journal of the Chinese Institute of Chemical Engineers |
卷 期 | 29:2 1998.03[民87.03] |
頁 次 | 頁153-159 |
分類號 | 460.02 |
關鍵詞 | 有機溶劑; 烷基化脂肪分解酶; Alkylated lipase; Enantioselective esterification; (S)-naproxen ester; |
語 文 | 英文(English) |
英文摘要 | An enantioselective esterif-ication of racemic naproxen by reaction with trimethylsilyl methanol was found when Candida rugosa lipase, that was chemically modified by reductive alkylation with acetaldehyde, is employed as the biocatalyst in isooctane. Increasing the degree of enzyme modification results in an enhancement of enzyme enantioselectivity, while a maximum activity for each enantiomer was observed at 37℃. However, this modification has little effect on enzyme activity and enantioselectivity at the reaction tempera ture higher than 50℃. A comparison of kinetic behaviors for the derived and the native lipases indicates that the former can enhance the time-course stability, while decreasing the alcohol inhibition effect, enzyme activity and enantioselectivity. |
本系統中英文摘要資訊取自各篇刊載內容。