𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Modelling of oligosaccharide synthesis by dextransucrase

✍ Scribed by B. Demuth; H. J. Jördening; K. Buchholz


Publisher
John Wiley and Sons
Year
1999
Tongue
English
Weight
434 KB
Volume
62
Category
Article
ISSN
0006-3592

No coin nor oath required. For personal study only.

✦ Synopsis


Dextransucrase catalyses the formation of dextran, but also of numerous oligosaccharides from sucrose and different acceptors, if appropriate conditions are chosen. Much experimental work has been carried out and a scheme of reactions and a mathematical model have been developed to describe the complex kinetic behaviour of the enzyme. A computer program was used to calculate the parameters of the model from a broad range of experimental data, investigating a large number of kinetic tests with the acceptors maltose and fructose. The results lead to design considerations for a continuous reactor system with immobilized dextransucrase to produce leucrose, a disaccharide of industrial interest.


📜 SIMILAR VOLUMES


Kinetic modeling of oligosaccharide synt
✍ Marguerite Dols; Magali Remaud-Simeon; René-Marc Willemot; Bernd Demuth; Hans-Jo 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 124 KB

The kinetic behavior of soluble and insoluble forms of dextransucrase from Leuconostoc mesenteroides NRRL B-1299 was investigated with sucrose as sub- strate and maltose as acceptor. To study the parameters involved, a kinetic model was applied that was previously developed for L. mesenteroides NRRL

Co-immobilization of dextransucrase and
✍ Frank A. Erhardt; Jonas Kügler; Raghavender R. Chakravarthula; Hans-Joachim Jörd 📂 Article 📅 2008 🏛 John Wiley and Sons 🌐 English ⚖ 496 KB 👁 1 views

## Abstract Co‐Immobilization of dextransucrase (DS) and dextranase (DN) into calcium alginate includes the co‐entrapment of soluble DS and adsorbed DN. DS converts sucrose into dextran, which is the substrate for DN, so that isomalto‐oligosaccharides (IMOs) are follow‐up products of dextran hydrol

Production of Leucrose by Dextransucrase
✍ Klaus Buchholz; Martina Noll-Borchers; Dieter Schwengers 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 230 KB

ty, efficiency and operational stability. The immobilization mechanism was investigated and the reaction conditions for leucrose formation were optimized. A surprising aspect was the finding, that yields and selectivity were much improved by reactions in ice. Referring to technical application of le

Synthesis of Oligosaccharide Dendrimers
✍ Barbara Colonna; Valerie D. Harding; Sergey A. Nepogodiev; Françisco M. Raymo; N 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 403 KB 👁 1 views