title: Production of insoluble exopolysaccharide of Agrobacterium sp. (ATCC 31749 and IFO 13140).
abstract: Agrobacterium isolated from soil samples produced two extracellular polysaccharides: succinoglycan, an acidic soluble polymer, and curdlan gum, a neutral, insoluble polymer. Maize glucose, cassava glucose, and maize maltose were used in fermentation medium to produce insoluble polysaccharide. Two Agrobacterium sp. strains which were used (ATCC 31749 and IFO 13140) in the production of insoluble exopolysaccharide presented equal or superior yields compared to the literature. The strain ATCC 31749 yielded better production when using maize maltose, whose yield was 85%, whereas strain IFO 13140 produced more when fed maize glucose, producing a yield of 50% (on reducing sugars).
authors.affiliation: Pharmacy and Pharmacology Department, State University of Maringá, Avenida Colombo, 5790-BL P-02, 87020-900 Maringá, PR, Brazil. mportilho@uem.br
authors.forename: Márcia
authors.initials: M
authors.lastname: Portilho
authors.forename: Graciette
authors.initials: G
authors.lastname: Matioli
authors.forename: Gisella Maria
authors.initials: GM
authors.lastname: Zanin
authors.forename: Flávio Faria
authors.initials: FF
authors.lastname: de Moraes
authors.forename: Adilma Regina Pippa
authors.initials: AR
authors.lastname: Scamparini
mesh_terms: D011135:Polysaccharides, Bacterial / Q000378:metabolism*; D012231:Rhizobium / Q000145:classification*; D012995:Solubility; D013045:Species Specificity; D003313:Zea mays / Q000382:microbiology*; D047071:beta-Glucans / Q000378:metabolism*
chemical_list: D011135:Polysaccharides, Bacterial; D047071:beta-Glucans; C038459:curdlan; C056779:succinoglycan