کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9603128 | 43275 | 2005 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Lipase-catalyzed preparation of S-propranolol in presence of hydroxypropyl β-cyclodextrins
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بیو مهندسی (مهندسی زیستی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Lipase-catalyzed preparation of S-propranolol in presence of hydroxypropyl β-cyclodextrins Lipase-catalyzed preparation of S-propranolol in presence of hydroxypropyl β-cyclodextrins](/preview/png/9603128.png)
چکیده انگلیسی
A simple method for the preparation of S-propranolol catalyzed by a Rhizopus niveus lipase in an aqueous medium is described. Hydroxypropyl-β-cyclodextrin was used for the first time to increase the solubility of (R,S)-O-butyryl propranolol thus permitting the reaction to be carried out in water. The formation of an inclusion complex between (R,S)-O-butyryl propranolol and hydroxypropyl-β-cyclodextrin was studied and a stoichiometry of 1:1 was determined. The influences of the hydroxypropyl-β-cyclodextrin concentration, pH and percentage of ethanol on the enzymatic activity were also investigated. Under the conditions presented in this paper, values of ees of 90% and E=48 were obtained.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Bioscience and Bioengineering - Volume 100, Issue 4, October 2005, Pages 423-428
Journal: Journal of Bioscience and Bioengineering - Volume 100, Issue 4, October 2005, Pages 423-428
نویسندگان
Rizette Ávila-González, Manuela Pérez-Gilabert, Francisco GarcÃa-Carmona,