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 20 of 56 for “"Mannan"”.
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A soluble mannan from ripe banana fruit
… filtration. The isolated hemicellulose was a homomannan as demonstrated by gas chromatography and high performance liquid chromatography of acid hydrolysates. The banana homomannan appears to be unique among plant mannans. All previously isolated plant homomannans were reported to be insoluble in …
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Effects of Mannan Oligosaccharide on Immune Function and Disease Resistance in Pigs
… secretion; disease resistance; immunomodulation; mannan oligosaccharide; pigs; PRRSV.
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Effects of mannan oligosaccharide on immune function and disease resistance in pigs
… described below demonstrate the effects of mannan oligosaccharide (MOS) on immune function and disease resistance in pigs. Study 1 evaluated whether MOS in both in vivo and in vitro systems regulates cytokine production by alveolar macrophages (AMφ) in response to in vitro microbial …
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An Evaluation of a Yeast-Derived Mannan Oligosaccharide and Its Mode of Action in Swine
… (Alltech, Inc., Nicholasville, KY) is a mannan oligosaccharide product, derived from the outer cell wall of the yeast Saccharomyces cerevisiae, with a theorized mode of action regarding the association of its mannan component with microbes expressing mannose-sensitive type-1 fimbriae. In …
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Variable Tnf-α Production By Murine Macrophages to a Cell Wall Extract of Candida Albicans
… cytokine, tumor necrosis factor α (TNF-α). Since mannan is a component of the fungal cell wall that has been indentified as an important virulence factor in the pathogenicity of C. albicans, we examined its ability to stimulate macrophages to produce TNF-α. Mannan was extracted from the yeast …
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The role of Dietary Interventions in Broiler Intestinal Health and Immunity
… the effect of dietary supplementation of mannan-rich natural formulations on broiler tissue morphology, mucin barrier integrity, digestive enzyme capacity, apoptotic and necroptotic cell death levels and the expression of inflammatory cytokines. Supplementation of diet with each …
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Evolutionary and functional study of plant cell wall polysaccharide glucomannan
… thesis focused on the cell wall polysaccharide mannan; I investigated the function, evolution, and mutant phenotypes of its synthase. The main chapter consists of three independent parts. Chapter2 addresses the question, “In which group of evolutionary stages does β-GGM (β-galactoglucomannan) …
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Study of the effects of oligosaccharides in liquid cultures of penicillium chrysogenum
… Locust bean gum-derived oligosaccharides (mannan oligosaccharides, DP 5-8), showed the highest levels of enhancement in both penicillin G and 6-aminopenicillanic acid concentrations. Sodium alginate-derived oligosaccharides, (oligoguluronate, DP 7 and oligomannuronate, DP 7), also induced …
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Conjugation of Zwitterionic and Cationic Peptides to Lipid and Polymer for Gene Delivery
… ionizable peptide RxHyC polysaccharide sugar mannan conjugates, the RxHyC-mannan. Such three different conjugates focus on different functionalities, with predesigned peptide sequences and the backbone to achieve desired results for siRNA delivery.
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Yeast engineering for pharmaceutical and nutraceutical purposes
… and consequently contain more cell wall mannan, a potent prebiotic oligosaccharide. Metabolic engineering approaches on the mannan synthetic machinery further increased cell wall mannan content. I demonstrated that adhesive capacities of engineered yeasts against pathogenic bacteria could …
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Production and characterisation of yeast cell wall preparations with binding activity against Salmonella and Escherichia coli.
… a high yielding, safe method of meat production. Mannan oligosaccharides (MOS) are one such class of product that can potentially provide this. Abundant in the cell wall of Saccharomyces cerevisiae as well as other yeast species, MOS have the capacity to inhibit type 1 fimbriae containing …
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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
… Arbeit untersucht 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 …
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Biological adhesion in wet environments: adaptations and mechanisms
… is caused by a polysaccharide with a glucurono-mannan backbone structure, which is chemically stable and contains carboxylic groups for strong interactions. Glucurono-mannan are an understudied group of plant polysaccharides that are present in mucilaginous secretions from across the plant …
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Studies on the internalization and intracellular transport of horseradish peroxidase in Chinese hamster ovary cells
… (EGTA Mg or EDTA), excess (19 mg/ml) yeast mannan (an inhibitor of uptake through a mannose/N-acetylglucosamine receptor) or using periodate treated HRP. Periodate treatment destroys the ring structure of sugars on HRP which have hydroxyl groups on adjacent ring carbons, eliminating sugar …
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Effects of dietary components on antibiotic resistance using mechanistic and plasmid based studies
… It has been observed that prebiotics such as mannan rich fraction (MRF) improve broiler growth and performance in a similar manner to antibiotic growth promotors. They have also been linked to a reduction in antibiotic resistance gene numbers. It was hypothesised that MRF has the ability to …
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Biochemical and molecular characterisation of cell wall glycosyltransferases in Mycobacterium tuberculosis
… synthesis of cell wall components such as lipomannan (LM), lipoarabinomannan (LAM) and arabinogalactan (AG). In this study, we have analysed several uncharacterised open reading frames, which encode for putative glycosyltransferases from M. tuberculosis and deleted their respective orthologues …
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Mannose and Lipopolysaccharide Receptors on the Surface of Granular Hemocytes from the Crayfish <em>Procambarus clarkii</em>.
… decreased their capacity to bind mannose. Mannan had no inhibitory effect on the binding of either ligand. Mixed hemocytes and hemocyte subpopulations separated by buoyant density were incubated with both ligands and revealed that a subpopulation of granular hemocytes bound both LPS and …
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Characterization of the expression patterns of <i>CELLULOSE SYNTHASE-LIKE A (CSLA)</i> genes in <i>arabidopsis thaliana</i> using reporter promoter-fusions and immunolocalization
… implicated in the synthesis of the backbone of mannan polysaccharides in plant cell walls. The Arabidopsis genome contains nine <i>CSLA</i> genes and we hypothesize that there is some degree of functional redundancy among these genes. A detailed investigation of transgenic Arabidopsis plants …
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An investigation of the biology and chemistry of the Chinese medicinal plant, Amorphophallus konjac
Konjac glucomannan (KGM), the main biologically active constituent of konjac flour extracted from corms of Amorphophallus konjac (konjac), can be used to prepare functional foods and may also have potential as a pharmaceutical product to combat obesity. The current study employed three experimental …
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