Abstract
A novel polyglucosamine polymer, PGB-2, was produced extracellularly from a new strain Citrobacter sp. BL-4 using pH-stat fed batch cultivation. It was composed of 97.3% glucosamine and 2.7% rhamnose; its average molecular weight, solubility in 2% acetic acid and viscosity were 20 kDa, 5 g l−1 and 2.9 cps, respectively. FT-IR and 1H NMR spectra of PGB-2 revealed a close identity with chitosan from crab shells.
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Received 20 September 2005; Revisions requested 6 October 2005; Revisions received 16 November 2005; Accepted 16 November 2005
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Kim, LS., Hong, SJ., Son, MK. et al. Polymeric and Compositional Properties of Novel Extracellular Microbial Polyglucosamine Biopolymer from New Strain of Citrobacter sp. BL-4. Biotechnol Lett 28, 241–245 (2006). https://doi.org/10.1007/s10529-005-5525-0
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DOI: https://doi.org/10.1007/s10529-005-5525-0