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Three exopolysaccharides of the β-(1→6)-d-glucan type and a β-(1→3;1→6)-d-glucan produced by strains of Botryosphaeria rhodina isolated from rotting tropical fruit by Ana Flora D. Vasconcelos; Nilson K. Monteiro; Robert F.H. Dekker; Aneli M. Barbosa; Elaine R. Carbonero; Joana L.M. Silveira; Guilherme L. Sassaki; Roberto da Silva; Maria de Lourdes Corradi da Silva is a Biochemistry, Genetics and Molecular Biology article available to read on EtoBox.
What is Three exopolysaccharides of the β-(1→6)-d-glucan type and a β-(1→3;1→6)-d-glucan produced by strains of Botryosphaeria rhodina isolated from rotting tropical fruit about?
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 O-6 as shown in the putative structure below: [carbohydrate structure: see text]. The EPS of the other fungal isolates consisted of a linear chain of (1-->6)-linked glucopyranosyl residues of the following structure: [carbohydrate structure: see text]. FTIR spectra showed one band at 891 cm(-1), and (13)C NMR spectroscopy showed that all glucosidic linkages were of the beta-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.
Who reads Three exopolysaccharides of the β-(1→6)-d-glucan type and a β-(1→3;1→6)-d-glucan produced by strains of Botryosphaeria rhodina isolated from rotting tropical fruit?
It is typically read by researchers, students, and practitioners in Biochemistry, Genetics and Molecular Biology.
- Author
- Ana Flora D. Vasconcelos; Nilson K. Monteiro; Robert F.H. Dekker; Aneli M. Barbosa; Elaine R. Carbonero; Joana L.M. Silveira; Guilherme L. Sassaki; Roberto da Silva; Maria de Lourdes Corradi da Silva
- Publisher
- Elsevier Science; Elsevier ; Elsevier Ltd.; Elsevier BV (ISSN 0008-6215)
- Published
- 2008
- Language
- EN
- Field
- Biochemistry, Genetics and Molecular Biology (Life Sciences)