کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
70896 | 48852 | 2007 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Resolution of 2-octanol by SBA-15 immobilized Pseudomonas sp. lipase
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
کاتالیزور
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Resolution of 2-octanol by SBA-15 immobilized Pseudomonas sp. lipase Resolution of 2-octanol by SBA-15 immobilized Pseudomonas sp. lipase](/preview/png/70896.png)
چکیده انگلیسی
Lipase from Pseudomonas sp. (PSL) was immobilized on SBA-15 (a highly ordered hexagonal array mesoporous silica molecular sieve) through physical adsorption and the immobilized PSL was used in resolution of (R,S)-2-octanol with vinyl acetate as acyl donor. Enhanced activity and enantioselectivity were observed for the immobilized PSL compared with those of the free one. The effects of reaction conditions, such as solvents, temperature, water activity and substrate ratio were investigated. Under the optimum conditions, the residual (S)-2-octanol was recovered with 99% enantiomeric excess at 52% conversion. The results also indicated that the immobilized PSL maintained 90% of its initial activity even after reusing it five times.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Catalysis B: Enzymatic - Volume 48, Issues 3–4, 24 September 2007, Pages 64–69
Journal: Journal of Molecular Catalysis B: Enzymatic - Volume 48, Issues 3–4, 24 September 2007, Pages 64–69
نویسندگان
Dahai Yu, Zhi Wang, Lifang Zhao, Yueming Cheng, Shugui Cao,