Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 10 of 10 for “"Galactomannan"”.
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Biochemical and genetic analysis of the Bacteroides ovatus galactomannan utilization system
I constructed the E. coli-Bacteroides shuttle vector, pVAL-1. This was the first in a series of new cloning vehicles that made it easier to clone Bacteroides DNA in E. coli and mobilize it from E. coli to Bacteroides species.
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Enzymes Involved in the Utilization of the Galactomannan, Guar Gum, by Bacteroides Ovatus
When Bacteroides ovatus is grown on guar gum, a galactomannan, it produces an (alpha)-galactosidase (I) which is different from the (alpha)-galactosidase (II) it produces when it is grown on galactose, melibiose, raffinose or stachyose. I have purified both of these enzymes to apparent homogeneity. …
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Invasive fungal disease in immunocompromised hosts with focus on diagnostics
… were collected for the analysis of betaglucan, galactomannan, bm-gliotoxin (serum) and D-arabinitol/L-arabinitol (urine). The sensitivity of betaglucan and galactomannan was low early in the time course of IFD. The highest positive predictive value of betaglucan was obtained when using a cut-off …
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"Sugar Coat" Genetic & chemical validation of <i>Aspergillus fumigatus</i> cell wall targets
… composed of chitin, β-(1,3) glucan and galactomannan and is essential for survival and structural stability. Chitin, a linear polymer of β-(1,4) linked N-acetylglucosamine (GlcNAc), forms a rigid inner layer that is also partially hydrolysed during morphogenesis by glycoside hydrolase …
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Urinary carbohydrates as an indicator of digestion and absorption of dietary fiber in a monogastric animal
… then fed diets containing 5 percent guar gum (a galactomannan), 10 percent xylan (a polymer of xylose), or 10 percent wheat bran. The appearance in the urine of the component carbohydrates of the ingested dietary fiber was used as an indication of the absorption of the carbohydrates derived from …
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Targeting final steps of sugar nucleotide biosynthetic pathway against <i>Aspergillus fumigatus</i>
… Cell wall carbohydrates include glucan, chitin, galactomannan and galactosaminogalactan (GAG). These carbohydrates contribute to viability and virulence of A. fumigatus, suggesting that interfering with cell wall synthesis would inhibit the growth of A. fumigatus. Biosynthesis of cell wall …
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On the Recalcitrant Nature of Sphagnum's Cell Wall
… including Iβ cellulose, hemicelluloses such as galactomannan and xyloglucan, and pectins. While moss specific modifications were apparent, such as the absence of canonical xylan conformations typical of vascular plants and the presence of an unidentified β-glucan like polymer, differences in the …
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Rapid tests for fungal infection in critical care
… lavage fluid (BALF) and serum, using a galactomannan-based definition as a reference standard, suggestedthat BDG had the greatest sensitivity of these tests and serum PCR had the greatest specificity. Given its sensitivity, BDG may have a role in identifying those patients who warrant …
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Auftreten und Kinetik falschpositiver Candida- und Aspergillus- Antigentests nach Applikation parenteraler Ernährung und Piperacillin-Tazobactam bei Patienten auf einer hämatologisch-onkologischen Station
… das Auftreten falschpositiver Mannan- und Galactomannanergebnisse bei hämatologischen Patienten nach allogener Stammzelltransplantation, die parenteral ernährt werden müssen oder eine antibiotische Therapie mit Piperacillin-Tazobactam erhalten. Die Kenntnis von Quellen, die die Spezifität …
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The stability of enzymes during breadmaking and their influence on staling characteristics
… agents used were based upon rice starch and guar galactomannan. When these microcapsules were incorporated into the breadmaking formulation and baked, it appeared that softer crumb characteristics were achieved. The data also indicates an effect of delay in the staling rates. From these studies it …