Production of high-pyruvate xanthan gum on synthetic medium

Chemistry: molecular biology and microbiology – Micro-organism – tissue cell culture or enzyme using process... – Preparing compound containing saccharide radical

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435101, 435910, 426658, C12P 1906, C12P 1904, C12R 164

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043944477

ABSTRACT:
A high-pyruvate xanthan gum, substantially free of insolubles and undesirable coloration, is produced by fermentation of Xanthomonas campestris on a carbohydrate-containing nutrient medium having (NH.sub.4).sub.2 HPO.sub.4 at a level of at least 0.15% as the primary nitrogen source, and having a total phosphate level of at least about 0.25%.

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patent: 4154654 (1979-05-01), Campagne
Sandford et al., "Variation in Xanthomonas campestris NRRL B-1459 Characterization of Xanthom Products of Differing Pyruvic Acid Content" Exracellular Microbial Polysaccharides, A.C.S. Symposium Series 45 A.C.S., Washington, (1977) Sandford et al. ed. pp. 192-209.
Cadmus, et al., "Colonial Variation in Xanthomonas campestris NRRL B-1459 and Characterization of the Poly Saccharide from a Variant Strain", Can J. Microbiol., vol. 22, (1976), pp. 942-948.
Jeanes et al., USDA ARS-NC-51 (Nov. 1976), pp. 10-11.
Cadmus et al., Abstract No. 29 (CSCE), Abstracts of Papers, The Chemical Institute of Canada and A.C.S. Joint Conference, May 29-Jun. 2, 1977.
Moraine et al., "Kinetics of the Xanthan Fermentation", Biotechnology and Bioengineering, vol. XV, (1973), pp. 225-237.

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