NDLI: Structure elucidation of uniformly 13C-labeled bacterial celluloses from different Gluconacetobacter xylinus strains

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Structure elucidation of uniformly 13C-labeled bacterial celluloses from different Gluconacetobacter xylinus strains

Content Provider	Springer Nature Link
Author	Hesse Ertelt, Stephanie Heinze, Thomas Togawa, Eiji Kondo, Tetsuo
Copyright Year	2009
Abstract	The morphological and supramolecular structures of native cellulose pellicles from two strains of Gluconacetobacter xylinus (ATCC 53582, ATCC 23769) were investigated. Samples had been statically cultivated in Hestrin-Schramm medium containing fully 13C-labeled β-d-glucose-U-13C6 as the sole source of carbon. The results are compared with structure data of bacterial celluloses with a natural 13C abundance of 1.1%. Non-enriched and 13C-labeled cellulose pellicles formed crystalline structures as revealed by cross-polarized/magic-angle spinning (CP/MAS) 13C{1H}-NMR and near infrared (NIR) FT-Raman spectroscopic measurements as well as wide-angle X-ray diffraction (WAXD) investigations. Atomic force microscopy (AFM) was applied for analyzing fiber morphologies and surface properties. For the first time, details about the manipulation of fiber widths and pellicle formation were shown for different bacterial strains of G. xylinus depending on the use of β-d-glucose-U-13C6 for the biosynthesis.
Starting Page	139
Ending Page	151
Page Count	13
File Format	PDF
ISSN	09690239
Journal	Cellulose
Volume Number	17
Issue Number	1
e-ISSN	1572882X
Language	English
Publisher	Springer Netherlands
Publisher Date	2009-08-25
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Bacterial cellulose Gluconacetobacter xylinus 13C-Labeling Biosynthesis 13C Nuclear magnetic resonance NIR FT-Raman Atomic force microscopy Wide-angle X-ray diffraction Crystallinity Polymer Sciences Organic Chemistry Physical Chemistry Bioorganic Chemistry
Content Type	Text
Resource Type	Article
Subject	Polymers and Plastics

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Spectral assignments and anisotropy data of cellulose I(alpha): 13C-NMR chemical shift data of cellulose I(alpha) determined by INADEQUATE and RAI techniques applied to uniformly 13C-labeled bacterial celluloses of different Gluconacetobacter xylinus strains.

Spectral assignments and anisotropy data of cellulose I(alpha): 13C-NMR chemical shift data of cellulose I(alpha) determined by INADEQUATE and RAI techniques applied to uniformly 13C-labeled bacterial celluloses of different Gluconacetobacter xylinus strains.

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