dc.contributor | Universidade Estadual Paulista (Unesp) | |
dc.contributor | Univ Castilla La Mancha | |
dc.contributor | Universidade Estadual de Londrina (UEL) | |
dc.contributor | Universidade Federal do Paraná (UFPR) | |
dc.date.accessioned | 2014-05-20T14:03:11Z | |
dc.date.available | 2014-05-20T14:03:11Z | |
dc.date.created | 2014-05-20T14:03:11Z | |
dc.date.issued | 2008-09-22 | |
dc.identifier | Carbohydrate Research. Oxford: Elsevier B.V., v. 343, n. 14, p. 2481-2485, 2008. | |
dc.identifier | 0008-6215 | |
dc.identifier | http://hdl.handle.net/11449/22266 | |
dc.identifier | 10.1016/j.carres.2008.06.013 | |
dc.identifier | WOS:000259797200021 | |
dc.identifier | 9424175688206545 | |
dc.description.abstract | Four exopolysaccharides (EPS) obtained from Botryosphaeria rhodina strains isolated from rotting tropical fruit (graviola, mango, pinha, and orange) grown on sucrose were purified on Sepharose CL-4B. Total acid hydrolysis of each EPS yielded only glucose. Data from methylation analysis and (13)C NMR spectroscopy indicated that the EPS from the graviola isolate consisted of a main chain of glucopyranosyl (1-->3) linkages substituted at 0-6 as shown in the putative structure below:[GRAPHICS]The EPS of the other fungal isolates consisted of a linear chain of (1-->6)-linked glucopyranosyl residues of the following structure:[GRAPHICS]FTIR spectra showed one band at 891 cm(-1), and (13)C NMR spectroscopy showed that a;] glucosidic linkages were of the p-configuration. Dye-inclusion studies with Congo Red indicated that each EPS existed in a triple-helix conformational state. beta-(1-->6)-D-Glucans produced as exocellular polysaccharides by fungi are uncommon. (C) 2008 Elsevier Ltd. All rights reserved. | |
dc.language | eng | |
dc.publisher | Elsevier B.V. | |
dc.relation | Carbohydrate Research | |
dc.relation | 2.074 | |
dc.relation | 0,617 | |
dc.rights | Acesso restrito | |
dc.source | Web of Science | |
dc.subject | Botryosphaeria rhodina isolates | |
dc.subject | Exopolysaccharides | |
dc.subject | beta(1 -> 6)-D-glucans | |
dc.subject | beta(1 -> 3 : 1 -> 6)-D-glucans | |
dc.subject | Triple-helix conformation | |
dc.title | Three exopolysaccharides of the beta-(1 -> 6)-D-glucan type and a beta-(1 -> 3;1 -> 6)-D-glucan produced by strains of Botryosphaeria rhodina isolated from rotting tropical fruit | |
dc.type | Artículos de revistas | |