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Tailormade Polysaccharides with Defined Branching Patterns: Enzymatic Polymerization of Arabinoxylan Oligosaccharides

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Senf,  Deborah
Fabian Pfrengle, Biomolekulare Systeme, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

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Ruprecht,  Colin
Fabian Pfrengle, Biomolekulare Systeme, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

Matic,  Aleksandar
Fabian Pfrengle, Biomolekulare Systeme, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

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Pfrengle,  Fabian
Fabian Pfrengle, Biomolekulare Systeme, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

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Citation

Senf, D., Ruprecht, C., Kishani, S., Matic, A., Toriz, G., Gatenholm, P., et al. (2018). Tailormade Polysaccharides with Defined Branching Patterns: Enzymatic Polymerization of Arabinoxylan Oligosaccharides. Angewandte Chemie International Edition, 57(37), 11987-11992. doi:10.1002/anie.201806871.


Cite as: http://hdl.handle.net/21.11116/0000-0002-47DF-4
Abstract
The heterogeneous nature of non-cellulosic polysaccharides, such as arabinoxylan, makes it difficult to correlate molecular structure with macroscopic properties. To study the impact of specific structural features of the polysaccharides on crystallinity or affinity to other cell wall components, collections of polysaccharides with defined repeating units are required. Herein, a chemoenzymatic approach to artificial arabinoxylan polysaccharides with systematically altered branching patterns is described. The polysaccharides were obtained by glycosynthase-catalyzed polymerization of glycosyl fluorides derived from arabinoxylan oligosaccharides. X-ray diffraction and adsorption experiments on cellulosic surfaces revealed that the physicochemical properties of the synthetic polysaccharides strongly depend on the specific nature of their substitution patterns. The artificial polysaccharides allow structure?property relationship studies that are not accessible by other means.