Industrial Biotransformations 2000
DOI: 10.1002/9783527614165.ch5
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Cited by 24 publications
(57 citation statements)
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“…However, as the optimal pH values for l-aspartate ammonia lyase and laspartate b-decarboxylase are very different, the procedure has to be carried out in two steps. [20] The synthesis of l-10 from fumarate 7 and ammonia is the first two-step process based on biocatalysts. In the decarboxylation of l-6 stoichiometric amounts of CO 2 are released.…”
Section: Lyases As Biocatalysts In Amino Acid Synthesismentioning
confidence: 99%
See 1 more Smart Citation
“…However, as the optimal pH values for l-aspartate ammonia lyase and laspartate b-decarboxylase are very different, the procedure has to be carried out in two steps. [20] The synthesis of l-10 from fumarate 7 and ammonia is the first two-step process based on biocatalysts. In the decarboxylation of l-6 stoichiometric amounts of CO 2 are released.…”
Section: Lyases As Biocatalysts In Amino Acid Synthesismentioning
confidence: 99%
“…Often both enantiomers are of industrial interest. Exam-ples are piperidine-2-carboxylic acids (20), which are incorporated into various active compounds, and N-CBZ-protected proline (N-CBZ-32). Researchers at Lonza have developed biocatalytic methods that allow access to this class of compounds through reactions with hydrolases.…”
Section: Racemate Resolution With Acylases and Amidasesmentioning
confidence: 99%
“…Da die optimalen pH-Werte für l-Aspartat-Ammoniak-Lyase und lAspartat-b-Decarboxylase sich zu stark unterscheiden, muss das Verfahren in zwei Stufen durchgeführt werden. [20] Die Synthese von l-10 aus 7 und Ammoniak ist das erste zweistufige Verfahren, das auf Biokatalysatoren basiert. Bei der Decarboxylierung von l-6 werden stöchiometrische Mengen CO 2 frei, sodass Gasblasenbildung zu Inhomogenitäten im Immobilisatbett führt.…”
Section: Lyasen Als Biokatalysatoren Für Aminosäuresynthesenunclassified
“…Der Gesamtumsatz im Handel mit Pharma-und Agroindustrie wird für 2000 auf mehr als 20 Mrd. E geschätzt, der größte Teil entfällt auf die Pharmaindustrie.…”
Section: Introductionunclassified
“…This severe drop in activity could be due to the fact that the catalytic amino acid (lysine) in this aldolase is modified, as it has been described for nitrilase CLEAs, where its modification by glutaraldehyde lowered the activity to 49% (Mateo et al, 2004). In addition, free NAL is used industrially at basic pHs (where standard CLEAs are not stable) for the condensation of pyruvate and Nacetyl-D-mannosamine (ManNAc) into N-acetyl-D-neuraminic acid (Neu5Ac), an advanced intermediate for obtaining GlaxoSmithKlime's antiviral Relenza Ò (Liese et al, 2006).…”
Section: Introductionmentioning
confidence: 97%