Biosynthèse de cellulose bactérienne à pertir de glycérol sélectivement deutérié en position 1, 2, ou 3: Etude par résonance magnétique nucléaire

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Abstract
Glycerol specifically deuterated at C‐1, C‐2, or C‐3 was prepared and used for the biosynthesis of bacterial cellulose with Acetobacter xylinum.The material obtained were converted into glucitol hexaacetate and analyzed by 250‐MHz nuclear magnetic resonance and mass spectrometry. The spectra indicated that the protons of the C‐3 position of the starting glycerol were incorporated as substituents of the C‐6 and C‐1 positions of the cellulose. Similarly, protons of the C‐2 and C‐5 positions of the cellulose came essentially from water and the protons bonded at the C‐3 and C‐4 positions of the cellulose from protons bonded to C‐1 of the starting glycerol.