کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
70833 | 48848 | 2008 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Screening hydroxynitrile lyases for (R)-pantolactone synthesis
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
کاتالیزور
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
The application of (R)-hydroxynitrile lyases ((R)-HNLs) enables a simple chemo-enzymatic approach towards (R)-pantolactone synthesis. For the first time, several new recombinant almond (R)-HNL isoenzymes were compared with native HNLs from different Prunus species with respect to cyanohydrin formation from hydroxypivalaldehyde providing the chiral key precursor in HNL based (R)-pantolactone synthesis. Recombinant PaHNL5 (R-selective hydroxynitrile lyase, isoenzyme 5, from Prunus amygdalus) surpasses all other tested natural and recombinant HNL variants. At low pH even very low amounts of crude enzyme catalysed stereoselective hydroxypivalaldehyde cyanohydrin formation in water based reaction systems.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Catalysis B: Enzymatic - Volumes 52–53, June 2008, Pages 183–188
Journal: Journal of Molecular Catalysis B: Enzymatic - Volumes 52–53, June 2008, Pages 183–188
نویسندگان
Beate Pscheidt, Manuela Avi, Richard Gaisberger, Franz S. Hartner, Wolfgang Skranc, Anton Glieder,