کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7078561 | 1459984 | 2014 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Improving Gluconobacter oxydans performance in the in situ removal of the inhibitor for asymmetric resolution of racemic 1-phenyl-1,2-ethanediol
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
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چکیده انگلیسی
Gluconobacter oxydans DSM2003 was used to catalyze the oxidation of racemic 1-phenyl-1,2-ethanediol (PED) for the production of (S)-enantiomer. The oxidative product mandelic acid produced strong inhibition to this reaction and largely reduced the activity of biocatalyst, which was the key problem in the reaction. In order to overcome this bottleneck, an anion exchange resin was selected and introduced as adsorbent for the in situ removal of the inhibitor from the reaction system. This method increased the substrate concentration from 12 to 60Â g/L and the yield of (S)-PED by approximately five times from 4.9Â g/L, on the premise that the enantiomeric excess (ee) value of (S)-PED remained above 96% and the reaction time was no more than 20Â h. Moreover, the final space-time yield was over 1.2Â g/L/h, which was higher than that reported from previous studies.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 159, May 2014, Pages 327-333
Journal: Bioresource Technology - Volume 159, May 2014, Pages 327-333
نویسندگان
Dai-Huan Li, Jin-Ping Lin, Dong-Zhi Wei,