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Production and rheological properties of a succinoglycan from Pseudomonas sp. 31260 grown on wood hydrolysates

, : Production and rheological properties of a succinoglycan from Pseudomonas sp. 31260 grown on wood hydrolysates. Canadian Journal of Microbiology 41(12): 1147-1152

Pseudomonas sp. ATCC 31260 produced substantial amounts of anionic extracellular polysaccharide (EPS) from a mineral acid hydrolysate of wood, prepared using the "Tennessee Valley Authority" process. Partially purified EPS production approached 16.5 g/L (as hexadecyltrimethylammonium bromide precipitate) when the pH of the hydrolysate was initially adjusted to 7.5 and amended with 0.05% each of peptone and yeast extract. This EPS, now characterized as a succinoglycan, is composed of glucose, galactose, succinate, pyruvate, and acetate. Solutions of this EPS are pseudoplastic, and under specified conditions, are rheologically comparable with commercially available xanthan.


PMID: 8542556

DOI: 10.1139/m95-160

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